⑴ 英语八年级上册第三单元知识点归纳、、、
答案是：
第三单元主要讲述的是
形容词的比较级的用法
比较级构成是：
1.一般情况下在后面直接加上er
shorter
2.以不发音的e结尾的单词加上
r
如：nice--nicer
3.以辅音字母结尾的加上y结尾的单词，变
y
为
i
再加上
er
lazy--lazier
4.以重读闭音节结尾的单词双写辅音字母加上er
如：big--bigger
5.部分双音节和多音节单词在前面加上
more，如：interesting--more
interesting
用法：
同级比较：1.“as+adj/adv+as或not
so(as)+adj/adv+as.”句型。该句型常用来描述两个比较对象的程度上的相似或不同(即平时说的“等级比较和不等级比较”)。
如：he
is
as
tall
as
I
他和我一样高
比较：
1.用于两者比较的选择疑问句
who
is
taller
,Tom
or
Jim
?
2.用于下列句型：
主语（be动词）+形容词比较级
+than
+比较对象
he
is
more
outgoing
than
I
主语+行为动词+副词比较级
+than
+比较对象
he
runs
faster
than
I
3.比较级+and+比较级
表示：越来越...
it's
geting
colder
and
colder
4.用于两者中的一个：较...
用：the
+比较级
Lucy
is
the
taller
of
the
twins
露西是双胞胎中较高的那个
暂时先告诉你这么多，以后还有更多的再给你讲述
☞
♧手工翻译☀尊重劳动☀欢迎提问☀感谢采纳♧
☜
⑵ 八年级下册英语第三单元知识点有哪些
Unit 3 What were you doing when the UFO arrived?
【单元目标】
1．单词与短语
well, buy, cut, land, while, experience, strange, around, follow, climb, shout, run, anywhere, happen, accident, modern, bright, silence, destroy, meaning, souvenir
1.get out (of) 2.in front of / in the front of 3. take off
4.buy for 5. land on 6. shout to / at 7.run away
8.come in 9.hear about 10.the Museum of Flight
11.happen to 12.stop doing 13.take place 14.as... as
2．目标句型：
1. What were you doing when...? 2. I was doing sth. when...
3. How about... / What about...? 4. What happened next?
5. While sth./sb. was doing sth., I did...
3．语法
1. 过去进行时
2. 情态动词的用法Ⅱ
【重难点分析】
一. 过去进行时
过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用，如：
I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
They were waiting for you yesterday.他们昨天一直在等你。
过去进行时的构成：
肯定形式：主语+was/were+V-ing
否定形式：主语+was not (wasn't)/were not (weren't)+V-ing
疑问形式：Was/Were+主语+V-ing。
基本用法：
1.过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…)，when sb. did sth等时间状语从句，如：
What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么？
I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。
I was cooking when she knocked at the door. 她敲门时我正在做饭。
2. when后通常用表示暂短性动词，while后通常用表示持续性动词，因此它所引导的状语从句中，谓语动词常用进行时态，如：
When the car exploded I was walking past it.= While I was walking past the car it exploded.
3.when用作并列连词时，主句常用进行时态，从句则用一般过去时，表示主句动作发生的过程中，另一个意想不到的动作发生了。如：
I was walking in the street when someone called me. 我正在街上走时突然有人喊我。
4. when作并列连词，表示“（这时）突然”之意时，第一个并列分句用过去进行时，when引导的并列分句用一般过去时。如：
I was taking a walk when I met him. 我正在散步，突然遇见了他。
We were playing outside when it began to rain. 我们正在外边玩，这时下起雨来了。
二. 情态动词(Modal Verbs )Ⅱ
4、情态动词表示“应该”、“必须” （shall, should, may, might, must, ought to）
（1）shall 和 should 用于表示“必须”：
①. Each member shall wear a name card. (表示规定) 每一个会员必须配带名卡。
②. I should answer his letter as soon as possible. (表示应该) 我应该尽快给他回信。
③. You shouldn't judge a man always by the clothes. (shouldn't “不应该”含有劝告的意思)
你不应该总是以貌取人。
④. The rules shall take effect on Jan. 1st. (shall 用于规章等，表示义务和规定)
新规则于一月一日起生效。
（2）may 和 might 用于表示“应该"(多用于法律等条文，一般上多用 shall):
①. Payment may be paid by check.(表示规定) 应以支票付款。
②. You might ask before you use my computer. (might表示应该)
你应该先问过再使用我的电脑。
（3）must 用于表示“必须”、“务必”：
①. You must keep the place clean. (务必) 你务必保持地方干净。
②. We must obey orders. (表示有义务) 我们必须服从命令。
③. Must I pay now? (用于疑问句) (如回答不必时，需用 needn't 或 don't have to)
我现在就得付款吗？
5、情态动词表示“意图”、“打算”
(will, would, shall, should)
（1）will 和 would 用于表示某种意图：
①. I'll call you as soon as possible. (will 主要用于第一人称) 我会尽快打电话给你。
②. Will you accept this invitation? (用would 则表示更客气) 你愿意接受这邀请吗？
③. Who will do the job? (用于条件句，可用于各种人称) 谁愿意做这事？
④. We won't (will not) stay here too long. (will not 表示不愿) 我们不愿呆在这里太久。
（2）shall 和 should 用于表示说话人的意图：
①. We shan't (shall not) go if it rains. (shall not 也可用 will not)
如果下雨，我们就不打算走了。
②. I shan't go with you. (shall 只用在第一人称) 我不打算和你一同走。
6、情态动词表示“意愿”
（will, would, shall, should）
（1）will 和 would ：
①. She will do it if you ask her.(表示主语的意愿) 如果你问她，她会做的。
②. Would you have another cup of tea? (用 would 比 will 客气) 你想再来一杯茶吗？
③. Will you have some cookies? (will用于疑问句，表示问人是否愿意)你想吃些烤饼吗？
④. If he will, he can do it. (will 用于条件句，用于第二、三人称) 如果他愿意，他会做的。
⑤. Would you excuse me? (would 表示婉转语气) 你能原谅我吗？
（2）shall 和 should ：
①. He shall get his allowance. (注意是he shall, 表示说话人的意愿)他会拿到他的津贴的。
②. You should sit here as long as you like. 只要你乐意，坐多久能行。
③. Shall you go to school with me? (疑问句中，表示问对方的意愿)
你愿意和我一起到学校去吗？
三. 重点词汇
1．cut v．切；剪；割
cut (one’s)hair 理发
Be careful．Don't cut yourself．小心，别切到自己。
2．alien n．外星人
Nobody knows whether there are aliens or not．没人知道到底有没有外星人。
An alien got out of the UFO. 一个外星人从不明飞行物里出来。
3．land v．登岸；登陆；降落
The plane will land in ten minutes．飞机将在十分钟后降落。
A UFO landed in the middle of the field.. 一个不明飞行物降落在田野中间。
4．while conj．当……的时候；在……之时
While I danced, she sang．我跳舞，她唱歌。
While he was singing, I was playing baseball. 他当时在唱歌，而我在打棒球。
5．right adv．正好；恰好
The accident happened right over there．事故正好发生在那里。
He lives right in the center of the city. 他恰好住在市中心。
6．surprised adj．惊奇的；吃惊的
I was surprised that he was late for the party．我很惊讶他聚会居然迟到了。
She was surprised that I didn’t know about that. 她很吃惊我竟不知那件事。
7．kid v．欺骗；哄骗
I'm not kidding you．我没有骗你。
You’re kidding = No kidding. 别开玩笑了。
8．anywhere adv．到处；无论哪里（用于否定句和一般疑问句中）
Did you go anywhere yesterday? 你昨天去没去过什么地方?
They didn’t go anywhere the day before yesterday. 他们前日天哪里也没去
9．happen v．发生
A funny thing happened in the subway yesterday． 昨天地铁里发生了一件有趣的事。
What happened to him on that day? 那天他怎么了？（发生了什么事？）
sth. happen to +名词 发生于……身上
She hoped nothing bad would happen to him．她希望不会有坏事发生在他身上。
10．get out of 从……出去
She tried to get out of helping her mother．她尽量逃避帮助她的妈妈。
Tom got out of the lift and walked to the station. 汤姆走出电梯然后往车站走去。
11．run away 跑开；迅速离开；逃走
The thief ran away when someone noticed him．当有人注意到他的时候，那个贼立刻逃走了。
12．at the doctor's 在诊所；在医院
I'm thinking of going to the tailor's．在表示诊所、店铺或某人的家时，经常用名词所有格的形式。
Mr. Cool’s = Mr. Cool’s clothes store at Jason’s = at Jason’s store
She is staying at Mary's．她住在玛莉家。
I want to go to the tailor’s. 我想到裁缝店去一趟。
13. see sb. Do sth. 看见某人做(过)某事
she saw the alien get out. 她看见外星人出来.
四．词语辨析
1、in front of 与in(at) the front of
in the front of 在……的前面 （表示“有距离的前面”，在一个参照物的前面）
e.g.: There is a car in front of the house. 房子前日面有一辆车
in(at) the front of 在……的前头，前排（列）（在一个范围内的前面部位）
eg. She sat in the front of the bus. 她坐在公交车的前排
2、get out of 与get into 是反义词
get into走进，进入
eg. He get out of the car and get into the building.
3、be amazing与be amazed
be amazing 令人惊奇的（修饰事物的，指某事令人惊奇，比surprising更具意外性
e.g.:She has an amazing talent for music.她在音乐方面有惊人的才华。
Isn’t that amazing .那不很令人意外吗？
be amazed (at sth./to do …/that 从句)（某人）对…(因…而)大感惊讶(指人作主语)
eg. We were amazed at the news.=We were amazed to hear the news.
我们对这个消息感到非常惊讶.
4、be surprising与 be surprised
be surprising令人惊奇的（用法与be amazing一样，也是修饰事物的）
e.g.:a surprising ending 一个令人惊奇的结局
be surprised (at sth./to do…/that从句) （某人）对…(因…而)感到惊奇，用法与be surprised
一样，也是人作主语。
eg. They were surprising that he was badly hurt in the audient. 他们很吃惊他在那次事故中伤得很重。
5、in a tree与 on a tree
eg. Are there any birds in the tree? 树上有些鸟吗？
on a tree 在树上（指长在树上的东西）
Look! There are many apples on the tree.
6、my flight to New York 与 fly to New York
前者是一个名词短语，后者是一个动词短语。
eg. Her flight to Paris is taking off at 2 p.m.
She is flying to Paris at 2 p.m.
五.课文解释：
1. You can imagine how strange it was!你可以想象这事有多惊奇！
eg. You can imagine how fast he runs!
2. I followed it to see where it was going
follow sb. to do sth. 跟随…去做…
eg. Mr White followed his wife to see what was happening there.
3. She didn’t think about looking outside the station.
Think about (doing) sth. 她未想到去车站外看看.
4. say to sb. 对某人 say to oneself 自言自语
e.g.: He said to himself, “Don’t be afraid.” 他自言自语,“不要害怕”
5. look for 寻找（强调找的“过程”） find 找到（强调找的“结果”）
eg. He looked for his lost key everywhere but couldn’t find it.
6. It was difficult to get out of bed. 从床爬起来很难。
It is difficult/hard to do sth. 做某事很难。
He found that it was difficult to learn physics well.
7. be killed 被杀害 be destroyed by… 被……摧毁……
8. walk home together in silence 沉默着一起走回家
in silence 状语（状态）
9. Not all events in history are as terrible as this.
并不是所有的历史上的大事件都像此事这样可怕。
Not all 并不是所有的（部分否定）
As…as… 与……一样(as与as之间用形容词、副词的原级)
10. become the first Chinese astronaut in space. 成为中国首位进入太空的宇航员
11. His flight around the Earth Lasted about 22 hours. 他的环绕地球的飞行持续了22个小时。
12. Do you think sth. good can come out of sth. terrible? 你认为坏事能变为好事吗？
请采纳答案，支持我一下。
⑶ 八年级英语下册第三单元的知识点有哪些
Unit 3 What were you doing when the UFO arrived?
【单元目标】
1．单词与短语
well, buy, cut, land, while, experience, strange, around, follow, climb, shout, run, anywhere, happen, accident, modern, bright, silence, destroy, meaning, souvenir
1.get out (of) 2.in front of / in the front of 3. take off
4.buy for 5. land on 6. shout to / at 7.run away
8.come in 9.hear about 10.the Museum of Flight
11.happen to 12.stop doing 13.take place 14.as... as
2．目标句型：
1. What were you doing when...? 2. I was doing sth. when...
3. How about... / What about...? 4. What happened next?
5. While sth./sb. was doing sth., I did...
3．语法
1. 过去进行时
2. 情态动词的用法Ⅱ
【重难点分析】
一. 过去进行时
过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用，如：
I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
They were waiting for you yesterday.他们昨天一直在等你。
过去进行时的构成：
肯定形式：主语+was/were+V-ing
否定形式：主语+was not (wasn't)/were not (weren't)+V-ing
疑问形式：Was/Were+主语+V-ing。
基本用法：
1.过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…)，when sb. did sth等时间状语从句，如：
What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么？
I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。
I was cooking when she knocked at the door. 她敲门时我正在做饭。
2. when后通常用表示暂短性动词，while后通常用表示持续性动词，因此它所引导的状语从句中，谓语动词常用进行时态，如：
When the car exploded I was walking past it.= While I was walking past the car it exploded.
3.when用作并列连词时，主句常用进行时态，从句则用一般过去时，表示主句动作发生的过程中，另一个意想不到的动作发生了。如：
I was walking in the street when someone called me. 我正在街上走时突然有人喊我。
4. when作并列连词，表示“（这时）突然”之意时，第一个并列分句用过去进行时，when引导的并列分句用一般过去时。如：
I was taking a walk when I met him. 我正在散步，突然遇见了他。
We were playing outside when it began to rain. 我们正在外边玩，这时下起雨来了。
二. 情态动词(Modal Verbs )Ⅱ
4、情态动词表示“应该”、“必须” （shall, should, may, might, must, ought to）
（1）shall 和 should 用于表示“必须”：
①. Each member shall wear a name card. (表示规定) 每一个会员必须配带名卡。
②. I should answer his letter as soon as possible. (表示应该) 我应该尽快给他回信。
③. You shouldn't judge a man always by the clothes. (shouldn't “不应该”含有劝告的意思)
你不应该总是以貌取人。
④. The rules shall take effect on Jan. 1st. (shall 用于规章等，表示义务和规定)
新规则于一月一日起生效。
（2）may 和 might 用于表示“应该"(多用于法律等条文，一般上多用 shall):
①. Payment may be paid by check.(表示规定) 应以支票付款。
②. You might ask before you use my computer. (might表示应该)
你应该先问过再使用我的电脑。
（3）must 用于表示“必须”、“务必”：
①. You must keep the place clean. (务必) 你务必保持地方干净。
②. We must obey orders. (表示有义务) 我们必须服从命令。
③. Must I pay now? (用于疑问句) (如回答不必时，需用 needn't 或 don't have to)
我现在就得付款吗？
5、情态动词表示“意图”、“打算”
(will, would, shall, should)
（1）will 和 would 用于表示某种意图：
①. I'll call you as soon as possible. (will 主要用于第一人称) 我会尽快打电话给你。
②. Will you accept this invitation? (用would 则表示更客气) 你愿意接受这邀请吗？
③. Who will do the job? (用于条件句，可用于各种人称) 谁愿意做这事？
④. We won't (will not) stay here too long. (will not 表示不愿) 我们不愿呆在这里太久。
（2）shall 和 should 用于表示说话人的意图：
①. We shan't (shall not) go if it rains. (shall not 也可用 will not)
如果下雨，我们就不打算走了。
②. I shan't go with you. (shall 只用在第一人称) 我不打算和你一同走。
6、情态动词表示“意愿”
（will, would, shall, should）
（1）will 和 would ：
①. She will do it if you ask her.(表示主语的意愿) 如果你问她，她会做的。
②. Would you have another cup of tea? (用 would 比 will 客气) 你想再来一杯茶吗？
③. Will you have some cookies? (will用于疑问句，表示问人是否愿意)你想吃些烤饼吗？
④. If he will, he can do it. (will 用于条件句，用于第二、三人称) 如果他愿意，他会做的。
⑤. Would you excuse me? (would 表示婉转语气) 你能原谅我吗？
（2）shall 和 should ：
①. He shall get his allowance. (注意是he shall, 表示说话人的意愿)他会拿到他的津贴的。
②. You should sit here as long as you like. 只要你乐意，坐多久能行。
③. Shall you go to school with me? (疑问句中，表示问对方的意愿)
你愿意和我一起到学校去吗？
三. 重点词汇
1．cut v．切；剪；割
cut (one’s)hair 理发
Be careful．Don't cut yourself．小心，别切到自己。
2．alien n．外星人
Nobody knows whether there are aliens or not．没人知道到底有没有外星人。
An alien got out of the UFO. 一个外星人从不明飞行物里出来。
3．land v．登岸；登陆；降落
The plane will land in ten minutes．飞机将在十分钟后降落。
A UFO landed in the middle of the field.. 一个不明飞行物降落在田野中间。
4．while conj．当……的时候；在……之时
While I danced, she sang．我跳舞，她唱歌。
While he was singing, I was playing baseball. 他当时在唱歌，而我在打棒球。
5．right adv．正好；恰好
The accident happened right over there．事故正好发生在那里。
He lives right in the center of the city. 他恰好住在市中心。
6．surprised adj．惊奇的；吃惊的
I was surprised that he was late for the party．我很惊讶他聚会居然迟到了。
She was surprised that I didn’t know about that. 她很吃惊我竟不知那件事。
7．kid v．欺骗；哄骗
I'm not kidding you．我没有骗你。
You’re kidding = No kidding. 别开玩笑了。
8．anywhere adv．到处；无论哪里（用于否定句和一般疑问句中）
Did you go anywhere yesterday? 你昨天去没去过什么地方?
They didn’t go anywhere the day before yesterday. 他们前日天哪里也没去
9．happen v．发生
A funny thing happened in the subway yesterday． 昨天地铁里发生了一件有趣的事。
What happened to him on that day? 那天他怎么了？（发生了什么事？）
sth. happen to +名词 发生于……身上
She hoped nothing bad would happen to him．她希望不会有坏事发生在他身上。
10．get out of 从……出去
She tried to get out of helping her mother．她尽量逃避帮助她的妈妈。
Tom got out of the lift and walked to the station. 汤姆走出电梯然后往车站走去。
11．run away 跑开；迅速离开；逃走
The thief ran away when someone noticed him．当有人注意到他的时候，那个贼立刻逃走了。
12．at the doctor's 在诊所；在医院
I'm thinking of going to the tailor's．在表示诊所、店铺或某人的家时，经常用名词所有格的形式。
Mr. Cool’s = Mr. Cool’s clothes store at Jason’s = at Jason’s store
She is staying at Mary's．她住在玛莉家。
I want to go to the tailor’s. 我想到裁缝店去一趟。
13. see sb. Do sth. 看见某人做(过)某事
she saw the alien get out. 她看见外星人出来.
四．词语辨析
1、in front of 与in(at) the front of
in the front of 在……的前面 （表示“有距离的前面”，在一个参照物的前面）
e.g.: There is a car in front of the house. 房子前日面有一辆车
in(at) the front of 在……的前头，前排（列）（在一个范围内的前面部位）
eg. She sat in the front of the bus. 她坐在公交车的前排
2、get out of 与get into 是反义词
get into走进，进入
eg. He get out of the car and get into the building.
3、be amazing与be amazed
be amazing 令人惊奇的（修饰事物的，指某事令人惊奇，比surprising更具意外性
e.g.:She has an amazing talent for music.她在音乐方面有惊人的才华。
Isn’t that amazing .那不很令人意外吗？
be amazed (at sth./to do …/that 从句)（某人）对…(因…而)大感惊讶(指人作主语)
eg. We were amazed at the news.=We were amazed to hear the news.
我们对这个消息感到非常惊讶.
4、be surprising与 be surprised
be surprising令人惊奇的（用法与be amazing一样，也是修饰事物的）
e.g.:a surprising ending 一个令人惊奇的结局
be surprised (at sth./to do…/that从句) （某人）对…(因…而)感到惊奇，用法与be surprised
一样，也是人作主语。
eg. They were surprising that he was badly hurt in the audient. 他们很吃惊他在那次事故中伤得很重。
5、in a tree与 on a tree
eg. Are there any birds in the tree? 树上有些鸟吗？
on a tree 在树上（指长在树上的东西）
Look! There are many apples on the tree.
6、my flight to New York 与 fly to New York
前者是一个名词短语，后者是一个动词短语。
eg. Her flight to Paris is taking off at 2 p.m.
She is flying to Paris at 2 p.m.
五.课文解释：
1. You can imagine how strange it was!你可以想象这事有多惊奇！
eg. You can imagine how fast he runs!
2. I followed it to see where it was going
follow sb. to do sth. 跟随…去做…
eg. Mr White followed his wife to see what was happening there.
3. She didn’t think about looking outside the station.
Think about (doing) sth. 她未想到去车站外看看.
4. say to sb. 对某人 say to oneself 自言自语
e.g.: He said to himself, “Don’t be afraid.” 他自言自语,“不要害怕”
5. look for 寻找（强调找的“过程”） find 找到（强调找的“结果”）
eg. He looked for his lost key everywhere but couldn’t find it.
6. It was difficult to get out of bed. 从床爬起来很难。
It is difficult/hard to do sth. 做某事很难。
He found that it was difficult to learn physics well.
7. be killed 被杀害 be destroyed by… 被……摧毁……
8. walk home together in silence 沉默着一起走回家
in silence 状语（状态）
9. Not all events in history are as terrible as this.
并不是所有的历史上的大事件都像此事这样可怕。
Not all 并不是所有的（部分否定）
As…as… 与……一样(as与as之间用形容词、副词的原级)
10. become the first Chinese astronaut in space. 成为中国首位进入太空的宇航员
11. His flight around the Earth Lasted about 22 hours. 他的环绕地球的飞行持续了22个小时。
12. Do you think sth. good can come out of sth. terrible? 你认为坏事能变为好事吗？
⑷ 八下英语三单元重点单词用法 辨析 跪求！！！！！！！！！！！！！
那些重点不知道 倒是可以上网搜每个单词的用法。。。。^`^
⑸ 人教版英语八年级下册第三单元总结1重点单词2短语3重点句4语法
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⑹ 人教版英语八年级下册3单元单词
八年级下册英语单词 《新人教版八年级下册》英语书共分为十个单元，共415个单词和短语。2014八年级人教版下。 1Unit 1 What's the matter? 1 matter n.问题，事情 2 What's the matter ? 怎么了? 出什么事了? 3 sore adj.疼痛的，酸痛的 4 have a cold 感冒 5 stomachache n.胃痛，腹痛 6 have a stomachache 胃痛 7 foot n.足，脚 8 neck n.颈，脖子 9stomach n.胃，腹部 10 throat n.咽喉，喉咙 11 fever n.发烧 12lie v.躺，平躺 13 lie down 躺下 14rest v&n.放松，休息 15 cough v.咳嗽 16 X-ray n. X射线，X光 16 toothache n.牙痛
18 take one's temperature 量体温 19 headache n.头痛 20 have a fever 发烧 21breakn.间歇；休息 22 take breaks(take a break) 休息 23 hurt v.（使）疼痛，受伤 24 passenger n.乘客，旅客 25 off adv.&prep. 离开（某处）；不工作；从……去掉 26 get off 下车 27 to one's surprise 使……惊讶的，出乎……意料 28 onto prep.向；朝 29 trouble n. 问题，苦恼 30 hit v.（用手或器具）击，打 31 right away 立即；马上 32 get into 陷入；参与 33 herself pron.（she的反身代词）她自己 34 bandage n.绷带 v.用绷带包扎 35 sick adj.生病的；有病毒 36 knee n.膝盖，膝 37 nosebleed n.鼻出血 38 breathe n.呼吸 39 sunburned adj.晒伤的 40 ourselves pron.(we的反身代词)我们自己，自己 41 climber n.登山者；攀登者
42 be used to 习惯于……，适应于
…… 43 risk n&v.
危险，风险 44 take risks (take a risk)冒险 45 accident n.（交通）事故；意外遭遇 46 situation n.情况，状况 47 kilo (=kilogram) n.千克 48 rock n.岩石 49 run out (of) 耗尽 50 knife n.(pl.knives) 刀 51 cut off 切除 52 blood n.血 53 mean v.意思是，打算，意欲 54 get out of 离开，从……出来 55 importance n.重要性，重要 56 decision n.决定，抉择 57 control n.﹠v.限制，约束，管理 58 be in control of 掌管，管理 59 spirit n.勇气，意志 60 death n.死，死亡 61 give up 放弃 62 nurse n.护士 2Unit 2 I'll help to clean up the parks.
⑺ 新目标、八年级下册英语1-3单元重点知识总结
Unit 1
Useful Expressions
1. make predictions 做预测
2.free time 空闲时间
3.fly…to… 乘坐…飞往…
4. on a space station 在太空站上
5. I disagree. 我不同意.
6. fall/be in love with sb. 与sb.相爱
7.keep pets 养宠物
8.be able to 能够
9. predict the future 预测未来
10.come true 实现
11. see sb. do sth. 看见sb.做某事（的全过程）
doing sth. 看见sb.正在做某事（片断）
12.help sb. with sth. 帮助某人做某事
13. hundreds of 数以百计的
14.try to do sth. 尽力做某事
15. look like 看上去长的像…
16. look for 寻找
17. 一段时间 + from now （从现在起）…之后
from now on = in the future 今后
Key Points
1.Do you think …?
I think (that)….
I don’t think (that)….
2. study at home on computer
辨析：on，in和with.
on：表示使用通讯工具、信息或传媒，乘坐交通工具等；
in：使用语言文字等媒介；
with：借助具体的手段或工具。
Eg. I don’t want to talk about it on the phone.
Can you speak it in English?
Don’t write it with a red pen.
3. Will people use money in 100 years?
“in+时间”结构常与一般将来时连用，对其进行提问时用特殊疑问词how soon.
4. before
ago 与过去时连用
Grammar Focus
1. The Simple Future tense
一般将来时的三种基本结构：
⑴ will +V.
⑵ be going to +V.
⑶ be + Ving
一般将来时的时间状语：in + 时间，in the future，next + 时间，
与tomorrow 相关的时间，this + 时间，from now on，right now，some day…
2.形容词、副词的比较级用法
Unit 2
UE
1. argue with sb. 与某人争吵
about/over sth. 为某事争吵
2.out of style/danger 过时/脱离险境
in style/danger 时尚/处于危险之中
3.call up sb. （代词放中间）给某人打电话
4.keep out 不让…进入
5.What’s wrong? 怎么啦？
6.be surprised at … 对…感到吃惊
7.borrow sth. from sb. 从某人那里借入某物
8. needto do sth. （某人）需要做某事
doing sth. （某物）需要做某事
9.pay … for sth. 为某物付…（钱）
10.the same + n. + as… 与…一样的n.
11 get on well with sb. 与某人相处融洽
12 have a fight with sb. 与某人争吵
13.take part in 加入
14 plan sth. for sb. 为某人计划某事
15.as much as possible 尽可能多的…
KP.
1. Sb. pay …for sth. 某人为某物花了…钱。
Sth. cost sb. … 某物花了某人…钱。
Sb. spend … on sth. 某人花了…（时间、金钱）在某事上。
(in) doing sth. 某人花了…（时间、金钱）做某事。
It takes/took sb. … to do sth. 花了某人…（时间、金钱）做某事。
2. not … until 直到…才… （主句动词是短暂性动词）
until 一直到… （主句中使用延续性动词）
3. leave
GF
情态动词
1.情态动词没有人称和数的变化；
2 情态动词不能直接做谓语，必须和一个动词原形同时使用；
3.大多数情态动词没有时态的变化；
情态动词加上be，通常表示猜测的语气。
Unit3
UE
1.in front of ---- behind 在…的前面 ---- 在…的后面
in the front of ---- at the back of 在…的前部 ---- 在…的后部（包含在内）
2.take off 起飞
3.get out of 离开…
4.You are kidding. 胡说八道
5. follow sb. to do sth. 跟着某人做某事
6. get into 进入
7.shout at 训斥、责备
shout to 向…喊叫
8 What happen？ 发生什么事了？
happen = take place 发生
9. in silence 沉默地
10. in space 在太空中
11.at the doctor’s 在诊所
12.jump down from… 从…跳下
13. climb up the tree 爬上树
KP
“as + 形容词/副词的原级+as”表示“和…一样”
否定形式：“not as/so + 形容词/副词的原级+as” 表示“和…不一样”
GF
1 The Past Progressive Tense
过去进行时
⑴用法：表示在过去某一时刻或某段时间内正在进行的动作。
⑵谓语结构：be ( was, were )+ Ving
⑶时间状语：at that time/moment
at + 点钟 + yesterday/last night
from +点钟 + to +点钟 + yesterday
this time yesterday
just then
when he came in, ….（when引导的时间状语从句是过去时，并且动词是短暂性动词时，主句使用过去进行时）
2. when & while
when与while都是从属连词，都有“当……时”的意思。
when 可与一个点的时间或表示一段的时间连用，从句动词可以是短暂性或延续性动词；
while 只指一段时间，不能指一点时间。因此while从句中的谓语动词必须是延续性动词。
如果答案您满意，请记得采纳噢！谢谢(*^__^*) ……
⑻ 人教版八年级英语下册第三单元单词解析
quite和very都是程度副词，都可修饰形容词和副词，都是“非常”的意思，但是quite可以直接修饰动词，very不能直接修饰动词。例如：
She is quite busy.
She is very busy.
happen; take place 虽都意为“发生”，但happen一般指偶发事件，而take place则指事先计划好的事情。二者均是不及物动词。不能用于被动语态。试比较：
When did the accident happen? 事故是什么时候发生的？
The May 4th Movement took place in 1919. 五四运动发生于1919年。
shout表示因高兴、惊奇、赞扬时发出的喊叫；而cry则表示因痛苦、恐惧、委屈等而“大喊”或“哭叫”。请比较：
Father shouted at the girl, and the girl cried. 爸爸训斥了那女孩一顿，女孩哭了。
when; while; as这三个词都可以用作连词，表示“当……的时候”，但用法有所不同：
① when表示瞬间，也可指一段时间。主句和从句中的动作可以同时发生，也可以先后发生。如：
When he saw her, he waved. 他一看见她就摆了摆手。
② while用于表示一段较长的时间或一个过程，强调主句的动词和从句的动词表示的动作或状态是同时发生的，常对同类的两个动作进行对比。如：
Please write while I read. 我读的时候，请写下来。
③ as常可以与while互换，但它着重指主从句的动作同时发生，而不是一前一后，可译为“一边……一边……”。如：
They talked as they walked. 他们边走边谈。
kill和murder: kill是泛指导致某人或某物死亡：The cold weather killed our flowers.寒冷的天气冻死了我们的花。而murder则是怀着目的杀死某人：She was sent to prison for murdering her husband.她因为杀死她丈夫而被判入狱。
remember doing记得过去曾经做过某事：I remember returning that book to her.我记得已把那本书还给她了。
remember to do sth.记得去做某事：Please remember to return that book to her.请记得把那本书还给她。
remember me to…请向……致意：Please remember me to your family.请代我向你的家人问好。
in hospital指“因病住院”，即医院的专门作用是治病，而句子所指的人或物正在接受医院的治疗。in the hospital指“在这家医院里”但不接受医院的治疗，与医院的专门作用无关，比如就职的医生、护士、清洁工等。
in front用在动词后面，做状语，表示“在前面”。如：
He sits in front.他坐在前面。
in front of在……前面（在某个范围外面）。如：
There is a tall tree in front of the house.房子前面有一棵大树。（树在房子外面的前面）
in the front of在……前面（在某个范围内部的前面）。如：
We can see a desk in the front of the classroom.我们看见一张桌子在教室前面。（桌子在教室的内部的前面）
when和while都引导时间状语从句。其意思为“当什么时候”，表示正在进行的某个动作。其区别在于：
when引导的从句中的谓语动词可以是短暂性或延续性动词，或表示状态动词。while引导的从句中的谓语动词只能是延续性动词，或表示状态动词。如：
When he came back, I was sleeping.（come是短暂性动词，只能用when引导。）当他回来时，我正在睡觉。
While /When he was working, he saw an accident happened.（work是延续性动词，可以用when或while）当他在工作时，他看见发生了一场事故。
注意：这两者最基本的区别是，如果主从句动词都是用了进行时，只能用while。而主从句的动词都用的是一般时，则用when。如：
When he came in, I went out.（这里只能用when）
While he was working, I was reading.（这里只能用while）
another表示“另一个。又一个”，是泛指另外一个．并不是两者中的又一个。the other和other都表示“其他人或物”，但the other，指其他的全部，而other指其他的一部分。
in a tree 和on a tree意思都是在树上，但具体所指内容不一样；in a tree指的是树以外的东西，也就是说不是树本身长的东西（如：人、动物等）在树上。on a tree指的是树木本身的一部分（如：树叶、树的果实等）在树上。
“when”表示“在……时”。它表示两个动作一先一后地进行，可以用来指某个时间点（动作瞬间完成），也可以表示一段时间（动作有延续性）。
“while”表示同时，表示两个动作同时进行，它不能表示某个时间点。
例如：It was raining when we arrived．（时间点）我们到达时天正下雨。
My mother got home when I was doing homework.
（时间段）我正写作业时我妈到家了。
He fell asleep while he was doing exercises.
（时间段）他在做练习时睡着了。
reach是及物动词，后面直接跟地点名词；
They reached London.他们到达了伦敦。
get是不及物动词，后跟名词时要加介词to；
Can we get to the station in time?我们能够及时赶到车站吗?
arrive是不及物动词，后跟名词时要加介词in或at。
At what time did you arrive at the station?你是几点钟到火车站的?
2.Well，I was standing in front of the library.
⑼ 八下英语3单元b部分的重点
新目标英语八年级下册第3单元重点知识练习
一、选择正确答案填空。
1. in front of in the front of
(1) My sister is sitting _______ the classroom to see the sun.
(2) My sister is sitting _______ the classroom to read English with her classmates.
2. when while as
(1) ______ I was walking on the street, I met my old friend.
(2) She was singing ______ she was walking.
(3) I was walking on the street _____ I met my old friend.
(4) They were reading English ______ I stayed at home.
(5) They were talking ______ I arrived.
3. get out of get into get on get off
(1) After he ________ the taxi, he _______ a car to the school.
(2) We ________ the bus and _________ another one to train station.
(3) When I _____ the shop, I saw an old woman _____ the restaurant.
4. take off land take down put on
(1) I _______ my clothes after getting up.
(2) The plane _______ when people came in.
(3) A UFO ________ on the playground, many children ran to see it.
(4) Please ______ your coat, it is very hot outside.
(5) The picture is too old, please ______ it ______.
5. in the tree on the tree
(1) There are some apples ________.
(2) There are a few birds _________.
6. every day everyday
(1) They read English _______.
(2) They read _______ English after work.
7. hear about /of hear from hear
(1) He ________ his brother was ill yesterday.
(2) He __________ his brother last week, because his brother _______ his illness in hospital.
二、用所给单词的适当形式填空。
1. We know many ________ (hero) in the movie.
2. We know the two ________(kid) _________ (kid) us.
3. The teacher asked us ______ (keep) the windows ______ (close).
4. The shop is _______ (close) today.
5. I had my hair ______ (cut) in the barber shop yesterday.
6. My parents ________ (fly) to Shanghai last week.
7. I ______ (shop) when I saw A UFO _______(land).
8. Please read the _______ (follow) sentence.
9. The students sit on the chairs ________(silence).
10. I _______ (buy) some fruit just now.
11. I happened _______ (see) my teacher on the way to school.
12. I was _____ at the ______news very much (surprise).
13. When Mr Green was in his room, his family _____(be) with him.
14. The boy was sitting at the ________ (doctor).
三、同义句转换
1. A car accident happened to the man just now.
A car accident ______ ______ to the man just now.
2. Please stay silent in class.
Please stay _______ _______ in class.
3. The school closed yesterday.
The school ______ ______ _____ yesterday.
4. They flew to Beijing.
They _____ to Beijing ______ ______.
5. When I arrived, he was eating supper.
______ he was eating _______, I arrived.
6. What’s the meaning of this word?
What ______ this word ________?
What do you ______ ______this world?
7. He asked someone to cook the lunch.
He _______ the lunch ______.
8. He bought some clothes from the shop.
He ______ ______ ______ in the clothes shop.
9. The station was crowed and she couldn’t see Davy anywhere.(同义句)
The station was crowed and she see Davy .
10. It seems that it’s very important for them to do these activities every day.(同义句)
These important them.
四、单项选择
1. When I returned, I saw him ___ on the bed.
A. laying B. lying C. laid D. lie
2. You can see many beautiful flowers ___ in the park.
A. somewhere B. anywhere C. over there D. here and there
3. Xiao Hong is scared of ____ English.
A. learn B. learns C. to learn D. learning
4. When it ______ tomorrow, I will stay at home.
A. rain B. rains C. will rain D. rained
5. There are ten ______ young people in the playground.
A. hundred B. hundreds C. hundred of D. hundreds of
6. What ____ she _____ this time last Friday?
A. did, do B. is, doing C. was, doing D. were, doing
7. Lucy ___ out of her room _____ I arrived.
A. got, when B. was getting, while C. got, while D. was getting, when
8. _____ strange man he is!
A. What B. What a C. How D. How a
9. He left the room and then ____ into another one.
A. gets B. got C. was getting D. to get
10. He is ______ seeing the UFO.
A. surprised at B. surprised of C. surprising at D. surprising of
11. Let’s not go ____. It’s dangerous outside.
A. to anywhere B. anywhere C. somewhere D. to somewhere
12. Who will _____ the sick children?
A. look for B. look up C. look after D. look out
13. --____ did it arrive here? --- Last night.
A. When B. While C. Where D. How
14. Shanghai is a very beautiful city and I ______ it very soon.
A. fall in love with B. fall in love about
C. felt in love about D. feel in love with
15. He runs as ______ as his brother.
A. fast B. faster C. quick D. quicker
16. What happened ____ you?
A. to B. with C. in D. for
17. I didn’t think _____ making ____ with him.
A. out, friends B. about, a friend C. up, a friend D. of, friends
18. -- I was doing my homework at nine yesterday evening. What about you? -- I ______.
A. sleep B. slept C. was sleeping D. am sleeping
19. ______ cold weather it is!
A. What B. What a C. How D. How a
20. I was surprised ____ the accident.
A. hear B. heard C. to hear D. hearing
21. I first met Mary three years ago. She ____ at a radio shop at the time.
A. has worked B. works C. was working D. will work
22. What is she _______ English over there, Tom?
A. saying in B. speaking in C. telling about D. talking with
五、根据汉语意思完成句子。
1 当不明飞行物着陆时，我跟我表妹正走在路上。
My ________ and I _________ ________ ________ the street when the UFO __________.
2 当我看见她的时候，我恰好站在博物馆前。
When I _________ her, I _________ __________ _________ in front of the museum.
3 当我们到机场的时候，天正下着大雪。
It ___________ __________ heavily when we ____________ at the ___________.
4 当她在买纪念品的时候，飞机起飞了。
__________ she __________ __________ souvenirs, the plane __________ __________.
5 上个星期天我又睡懒觉了。
I __________ __________ last Sunday.
6 念大学是人生最重要的经历之一。
Studying __________ _________ is one of the __________ __________ _________ in life.
7 难道那个小姑娘不被吓坏了吗？
__________ the little girl __________?
8 －刚才发生了什么事？－一只猫爬到树上下不来了。
－_________ _______ just now? －A cat ________ a tree and ________ _______ _______.
9 我听说刘翔下个月要去美国。
I heard that Liu Xiang __________ __________ _________ America next month.
10 王博士说话太快，我们跟不上他。
Dr. Wang __________ too _________, we can’t __________ him.
11 圣诞节那天早上发生了一场车祸。
A car __________ __________ ___________ __________ the morning of Christmas Day.
12 外星人长得好奇怪啊！
___________ ___________ the aliens ____________!
___________ __________ aliens they ___________ !
13 你还记得北京当选2008年奥运会主办城市时你在干什么吗？
Do you remember what _____________ _____________ _____________ when Beijing ___________
___________ ___________ to the 2008 Olympics?
14 不是所有的人都跟你一样。
__________ _________ people _________ __________ you.
15 －你能把门关上吗？－它本来就关着！
--__________ you _________ __________ the door? --It is __________
参考答案
一、
1. in front of, in the front of 2. While, as /while, when, when /while, when 3. got out of got into, got off got on, got out of get into /getting into; got into get out of /getting out of 4. put on, took off, landed, take off, take down 5. on the tree, in the tree 6. every day, everyday 7. heard, heard from heard of/about
二、
1. heroes 2. kids, kidded/are kidding 3. to keep, closed 5. closed 6. cut 6. flew 7. was shopping, land 8. following 9. silently 10. bought 11. to see 12. surprised, surprise /surprising 13. were 14. doctor’s
三、
1. took place 2. in silence 3. didn’t have lessons; had no classes; didn’t open up 4. went by air /plane 5. While, dinner 6. does clean, mean by 7. had, cooked 8. did some shopping
四、
⑽ 英语八下，新目标第三单元单词
1 rubbish n.垃圾；废弃物
2 take out the rubbish 倒垃圾
3 fold v.折叠；对折
4 sweep v.扫；打扫
5 floor n. 地板
6 mess n.杂乱；不整洁
7 throw v.扔；掷
8 all the time 频繁；反复
9 neither adv.也不
10 shirt n.衬衫
11 pass v.给；递；走过；通过
12 borrow v.借；借用
13 lend v.借给；借出
14 finger n.手指
15 hate v.厌恶；讨厌
16while conj.在……期间；当……的时候
17 snack n.点心；小吃；快餐
18 chore n.杂务；乏味无聊的工作
19 stress n.精神压力；心理负担
20 waste n.浪费；滥用
21in order to 目的是；为了
22provide v.提供；供应
23 anyway adv.而且；加之
24 depend v.依靠；信赖
25 depend on 依靠；信赖
26 develop v.发展；壮大
27 fairness n.公平性；公平合理性
28 since conj.从……以后；自……以来
29 neighbor (=neighbour) n.邻居
30 result n.后果；结果
31 ill adj.有病；不舒服
32 drop v.落下；掉下
33 independence n.独立
34 independent adj.独立的；自主的
35 take care of 照料；爱护
36 fair adj. 合理的；适当的