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八年級下冊英語第三單元語法總結

發布時間:2021-03-06 00:56:23

A. 八年級下冊語法總結百度文庫

新目標英語八年級下復習資料
總結:第4組
◆unit 1 Will people have robots?
知識點:
1. 形容詞,副詞的比較等級考查熱點透視:
a) 表示A與B在程度上相同時, 「as+形容詞或副詞的原級+as」結構。表示A不如B時,可用「not as/so+形容詞或副詞的原級+as」結構。
b) 表示A比B在程度上「更…..」時,可用「形容詞或副詞的比較級+than」結構
c) 表示三者或三者以上的比較,其中一個在程度上「最…..」時,常用「the+形容詞或副詞的最高級」結構,後面可帶「of/in的短語」來說明比較的范圍。(注意:副詞的最高級在句中常省略「the」.)
d) 在形容詞或副詞的比較級前,可以用「a little, even, far, much,still」的等詞語來修飾,以加強語氣。
e) 表示「越來越….」時,常用「形容詞或副詞的比較級+and+形容詞或副詞的比較級」結構,但要注意,對於多音節和部分雙音節形容詞,副詞而言,若要表達此意時,要用「more and more+形容詞或副詞的原級「結構。
f) 在表示「其中最….之一「的含義時,常使用 「one of+the+形容詞最高級形式+名詞復數」結構,其中的定冠詞the不可以省略。
g) 如果強調「兩者中比較…的(一個)」的意思時,可使用「the+形容詞比較級+其它」結構。
h) 表示「越….越….」, 可使用「the+形容詞或副詞的比較級,the+形容詞或副詞的比較級」結構。
2 .一般將來時
a) 一般將來時的構成:由助動詞shall或will加動詞原形構成,shall用於第一人稱。在口語中,will在名詞或代詞後常簡略為』ll, will not常簡略為won』t。這個時態的肯定,否定和疑問結構可表示如下:
肯定句 否定句 疑問句
I (We)shall(will) go.
You(He, She, They) will go. I(We)shall(will) not go.
You(He, She, They)will not go. Shall I(we) go?
Will you (he, she, they) go?
用」be going to +動詞原形」也可表示將來時,表示將要發生的事,打算或決定要做的事。
b)一般將來時的用法:1)表示將要發生的動作或情況;2) 不以人的意志為轉移,肯定要發生的事情。The day after tomorrow will be National Day.後天是國慶日。
3. in/after:in是指以現在時間為起點的「在一段時間以後」。也可以表示「在將來多少時間之內」,句子中的謂語動詞要用一般將來時態;after常指以過去時間為起點的「一段時間之後」,所以它與過去時態連用。當after指某個特定的未來時刻或日期之後,或指以將來某一時間為起點的若干時間之後時,它可以與將來時態連用。
4.more, less, fewer的用法區別:more為many, much的比較級,意為「更多」,可修飾可數與不可數名詞。Less是little的比較級,意為「更好,較少」,修飾不可數名詞。Fewer是few的比較級,意為「更少」,修飾可數名詞復數。
【注意】few, little表示否定「幾乎沒有」。a few, a little表示肯定「一點,幾個」。
5.would like sth意思為「想要某物「; would like to do意思為」想要做某事「。回答would like句型的一般疑問句時,其肯定回答為 「Yes, please.」;否定回答「No, thanks」或 「I』d like /love to, but….」
6. Such作形容詞,意思是「如此的」「這樣的」,修飾各種名詞。
? Such這樣的。如It is such bad weather.天氣如此惡劣。
? Such常和as搭配,表示一種類別。如We enjoy such a voice as hers.我們喜歡象她那樣的嗓子。
? Such常和表示結果的that從句搭配,表示「如此….以至於…」如
It was such a hot day that we all had to stay at home.

B. 八年級下冊英語第三單元語法焦點翻譯。帥哥美女,哥哥姐姐求你們了,作業好好好多多多的,盡量快點 謝謝

Unit 3 What were you doing when the UFO arrived?

重點語法:過去進行時態

do/does 的過去進行時態形式:(was/were) doing

do/does 的過去進行時態的被動語態:(was/were) being done

過去將來時態的肯定句、否定句和疑問句形式:

肯定句例句:I was walking down the street when a UFO landed.

否定句例句:I wasn't walking down the street when a UFO landed.

一般疑問句例句:Were you walking down the street when a UFO landed?

特殊疑問句例句:What were you doing when a UFO landed?

動詞 when 和 while 的選擇:when 後加瞬間動詞,while 後加延續性動詞。

例句:The boy was walking down the street when the UFO landed.

=While the boy was walking down the street, the UFO landed.

感嘆句

結構:(1) How + adj. + the + 主語 + 謂語動詞

=(2) What + (a/an) + [adj.] + n. + 主語 + 謂語動詞

例句:What a beautiful flower [it is]!

=How beautiful the flower is!

What beautiful flowers [they are]!

=How beautiful the flowers are!

重點短語:get out 出去;離開

take off 起飛

run away 逃跑;跑掉

come in 進來

hear about = hear of 聽說

take place 發生

as ... as 像……一樣(eg/ as old as him 像他一樣老)

anywhere = everywhere = here and there 任何地方

think about 考慮

think of 認為

get up = get out of the bed 起床

at the doctor's 在診所

every day 每一天

everyday adj. 日常的

most adj. 大部分

the most 最多的

in space 在太空中

national hero 民族英雄

all over the world = in the world 全世界

Reading Strategy(閱讀方法)

The title can be helpful for you to understand a text. (一篇文章的標題可以幫助你理解整篇文章。)It's also a good idea to read the first sentence of each paragraph before you read. (在閱讀整篇文章之前,閱讀每段的第一句話也是一個很有效的方法。)

C. 八年級下冊英語第三單元知識點有哪些

Unit 3 What were you doing when the UFO arrived?

【單元目標】
1.單詞與短語
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.目標句型:
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.語法
1. 過去進行時
2. 情態動詞的用法Ⅱ
【重難點分析】
一. 過去進行時
過去進行時表示過去某一時刻或者某段時間正在進行或發生的動作,常和表過去的時間狀語連用,如:
I was doing my homework at this time yesterday.昨天的這個時候我正在做作業。
They were waiting for you yesterday.他們昨天一直在等你。
過去進行時的構成:
肯定形式:主語+was/were+V-ing
否定形式:主語+was not (wasn't)/were not (weren't)+V-ing
疑問形式:Was/Were+主語+V-ing。

基本用法:
1.過去進行時表示過去某一段時間或某一時刻正在進行的動作。常與之連用的時間狀語有,at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+點鍾+yesterday (last night / Sunday…),when sb. did sth等時間狀語從句,如:
What were you doing at 7p.m. yesterday? 昨天晚上七點你在干什麼?
I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到瑪麗是在三年前,當時她在一家無線電商店工作。
I was cooking when she knocked at the door. 她敲門時我正在做飯。
2. when後通常用表示暫短性動詞,while後通常用表示持續性動詞,因此它所引導的狀語從句中,謂語動詞常用進行時態,如:
When the car exploded I was walking past it.= While I was walking past the car it exploded.
3.when用作並列連詞時,主句常用進行時態,從句則用一般過去時,表示主句動作發生的過程中,另一個意想不到的動作發生了。如:
I was walking in the street when someone called me. 我正在街上走時突然有人喊我。
4. when作並列連詞,表示「(這時)突然」之意時,第一個並列分句用過去進行時,when引導的並列分句用一般過去時。如:
I was taking a walk when I met him. 我正在散步,突然遇見了他。
We were playing outside when it began to rain. 我們正在外邊玩,這時下起雨來了。
二. 情態動詞(Modal Verbs )Ⅱ

4、情態動詞表示「應該」、「必須」 (shall, should, may, might, must, ought to)
(1)shall 和 should 用於表示「必須」:
①. Each member shall wear a name card. (表示規定) 每一個會員必須配帶名卡。
②. I should answer his letter as soon as possible. (表示應該) 我應該盡快給他回信。
③. You shouldn't judge a man always by the clothes. (shouldn't 「不應該」含有勸告的意思)
你不應該總是以貌取人。
④. The rules shall take effect on Jan. 1st. (shall 用於規章等,表示義務和規定)
新規則於一月一日起生效。
(2)may 和 might 用於表示「應該"(多用於法律等條文,一般上多用 shall):
①. Payment may be paid by check.(表示規定) 應以支票付款。
②. You might ask before you use my computer. (might表示應該)
你應該先問過再使用我的電腦。
(3)must 用於表示「必須」、「務必」:
①. You must keep the place clean. (務必) 你務必保持地方干凈。
②. We must obey orders. (表示有義務) 我們必須服從命令。
③. Must I pay now? (用於疑問句) (如回答不必時,需用 needn't 或 don't have to)
我現在就得付款嗎?
5、情態動詞表示「意圖」、「打算」
(will, would, shall, should)
(1)will 和 would 用於表示某種意圖:
①. I'll call you as soon as possible. (will 主要用於第一人稱) 我會盡快打電話給你。
②. Will you accept this invitation? (用would 則表示更客氣) 你願意接受這邀請嗎?
③. Who will do the job? (用於條件句,可用於各種人稱) 誰願意做這事?
④. We won't (will not) stay here too long. (will not 表示不願) 我們不願呆在這里太久。
(2)shall 和 should 用於表示說話人的意圖:
①. We shan't (shall not) go if it rains. (shall not 也可用 will not)
如果下雨,我們就不打算走了。
②. I shan't go with you. (shall 只用在第一人稱) 我不打算和你一同走。
6、情態動詞表示「意願」
(will, would, shall, should)
(1)will 和 would :
①. She will do it if you ask her.(表示主語的意願) 如果你問她,她會做的。
②. Would you have another cup of tea? (用 would 比 will 客氣) 你想再來一杯茶嗎?
③. Will you have some cookies? (will用於疑問句,表示問人是否願意)你想吃些烤餅嗎?
④. If he will, he can do it. (will 用於條件句,用於第二、三人稱) 如果他願意,他會做的。
⑤. Would you excuse me? (would 表示婉轉語氣) 你能原諒我嗎?
(2)shall 和 should :
①. He shall get his allowance. (注意是he shall, 表示說話人的意願)他會拿到他的津貼的。
②. You should sit here as long as you like. 只要你樂意,坐多久能行。
③. Shall you go to school with me? (疑問句中,表示問對方的意願)
你願意和我一起到學校去嗎?
三. 重點詞彙
1.cut v.切;剪;割
cut (one』s)hair 理發
Be careful.Don't cut yourself.小心,別切到自己。

2.alien n.外星人
Nobody knows whether there are aliens or not.沒人知道到底有沒有外星人。
An alien got out of the UFO. 一個外星人從不明飛行物里出來。

3.land v.登岸;登陸;降落
The plane will land in ten minutes.飛機將在十分鍾後降落。
A UFO landed in the middle of the field.. 一個不明飛行物降落在田野中間。

4.while conj.當……的時候;在……之時
While I danced, she sang.我跳舞,她唱歌。
While he was singing, I was playing baseball. 他當時在唱歌,而我在打棒球。

5.right adv.正好;恰好
The accident happened right over there.事故正好發生在那裡。
He lives right in the center of the city. 他恰好住在市中心。

6.surprised adj.驚奇的;吃驚的
I was surprised that he was late for the party.我很驚訝他聚會居然遲到了。
She was surprised that I didn』t know about that. 她很吃驚我竟不知那件事。

7.kid v.欺騙;哄騙
I'm not kidding you.我沒有騙你。
You』re kidding = No kidding. 別開玩笑了。

8.anywhere adv.到處;無論哪裡(用於否定句和一般疑問句中)
Did you go anywhere yesterday? 你昨天去沒去過什麼地方?
They didn』t go anywhere the day before yesterday. 他們前日天哪裡也沒去

9.happen v.發生
A funny thing happened in the subway yesterday. 昨天地鐵里發生了一件有趣的事。
What happened to him on that day? 那天他怎麼了?(發生了什麼事?)
sth. happen to +名詞 發生於……身上
She hoped nothing bad would happen to him.她希望不會有壞事發生在他身上。

10.get out of 從……出去
She tried to get out of helping her mother.她盡量逃避幫助她的媽媽。
Tom got out of the lift and walked to the station. 湯姆走出電梯然後往車站走去。

11.run away 跑開;迅速離開;逃走
The thief ran away when someone noticed him.當有人注意到他的時候,那個賊立刻逃走了。

12.at the doctor's 在診所;在醫院
I'm thinking of going to the tailor's.在表示診所、店鋪或某人的家時,經常用名詞所有格的形式。
Mr. Cool』s = Mr. Cool』s clothes store at Jason』s = at Jason』s store
She is staying at Mary's.她住在瑪莉家。
I want to go to the tailor』s. 我想到裁縫店去一趟。

13. see sb. Do sth. 看見某人做(過)某事
she saw the alien get out. 她看見外星人出來.

四.詞語辨析
1、in front of 與in(at) the front of
in the front of 在……的前面 (表示「有距離的前面」,在一個參照物的前面)
e.g.: There is a car in front of the house. 房子前日面有一輛車
in(at) the front of 在……的前頭,前排(列)(在一個范圍內的前面部位)
eg. She sat in the front of the bus. 她坐在公交車的前排

2、get out of 與get into 是反義詞
get into走進,進入
eg. He get out of the car and get into the building.

3、be amazing與be amazed
be amazing 令人驚奇的(修飾事物的,指某事令人驚奇,比surprising更具意外性
e.g.:She has an amazing talent for music.她在音樂方面有驚人的才華。
Isn』t that amazing .那不很令人意外嗎?
be amazed (at sth./to do …/that 從句)(某人)對…(因…而)大感驚訝(指人作主語)
eg. We were amazed at the news.=We were amazed to hear the news.
我們對這個消息感到非常驚訝.

4、be surprising與 be surprised
be surprising令人驚奇的(用法與be amazing一樣,也是修飾事物的)
e.g.:a surprising ending 一個令人驚奇的結局
be surprised (at sth./to do…/that從句) (某人)對…(因…而)感到驚奇,用法與be surprised
一樣,也是人作主語。
eg. They were surprising that he was badly hurt in the audient. 他們很吃驚他在那次事故中傷得很重。

5、in a tree與 on a tree
eg. Are there any birds in the tree? 樹上有些鳥嗎?
on a tree 在樹上(指長在樹上的東西)
Look! There are many apples on the tree.

6、my flight to New York 與 fly to New York
前者是一個名詞短語,後者是一個動詞短語。
eg. Her flight to Paris is taking off at 2 p.m.
She is flying to Paris at 2 p.m.

五.課文解釋:
1. You can imagine how strange it was!你可以想像這事有多驚奇!
eg. You can imagine how fast he runs!

2. I followed it to see where it was going
follow sb. to do sth. 跟隨…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. 她未想到去車站外看看.

4. say to sb. 對某人 say to oneself 自言自語
e.g.: He said to himself, 「Don』t be afraid.」 他自言自語,「不要害怕」

5. look for 尋找(強調找的「過程」) find 找到(強調找的「結果」)
eg. He looked for his lost key everywhere but couldn』t find it.

6. It was difficult to get out of bed. 從床爬起來很難。
It is difficult/hard to do sth. 做某事很難。
He found that it was difficult to learn physics well.

7. be killed 被殺害 be destroyed by… 被……摧毀……

8. walk home together in silence 沉默著一起走回家
in silence 狀語(狀態)

9. Not all events in history are as terrible as this.
並不是所有的歷史上的大事件都像此事這樣可怕。
Not all 並不是所有的(部分否定)
As…as… 與……一樣(as與as之間用形容詞、副詞的原級)

10. become the first Chinese astronaut in space. 成為中國首位進入太空的宇航員

11. His flight around the Earth Lasted about 22 hours. 他的環繞地球的飛行持續了22個小時。

12. Do you think sth. good can come out of sth. terrible? 你認為壞事能變為好事嗎?
請採納答案,支持我一下。

D. 人教版英語八年級下冊第三單元總結1重點單詞2短語3重點句4語法

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E. 新目標、八年級下冊英語1-3單元重點知識總結

Unit 1
Useful Expressions
1. make predictions 做預測
2.free time 空閑時間
3.fly…to… 乘坐…飛往…
4. on a space station 在太空站上
5. I disagree. 我不同意.
6. fall/be in love with sb. 與sb.相愛
7.keep pets 養寵物
8.be able to 能夠
9. predict the future 預測未來
10.come true 實現
11. see sb. do sth. 看見sb.做某事(的全過程)
doing sth. 看見sb.正在做某事(片斷)
12.help sb. with sth. 幫助某人做某事
13. hundreds of 數以百計的
14.try to do sth. 盡力做某事
15. look like 看上去長的像…
16. look for 尋找
17. 一段時間 + from now (從現在起)…之後
from now on = in the future 今後
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:表示使用通訊工具、信息或傳媒,乘坐交通工具等;
in:使用語言文字等媒介;
with:藉助具體的手段或工具。
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+時間」結構常與一般將來時連用,對其進行提問時用特殊疑問詞how soon.
4. before
ago 與過去時連用
Grammar Focus
1. The Simple Future tense
一般將來時的三種基本結構:
⑴ will +V.
⑵ be going to +V.
⑶ be + Ving
一般將來時的時間狀語:in + 時間,in the future,next + 時間,
與tomorrow 相關的時間,this + 時間,from now on,right now,some day…
2.形容詞、副詞的比較級用法

Unit 2
UE
1. argue with sb. 與某人爭吵
about/over sth. 為某事爭吵
2.out of style/danger 過時/脫離險境
in style/danger 時尚/處於危險之中
3.call up sb. (代詞放中間)給某人打電話
4.keep out 不讓…進入
5.What』s wrong? 怎麼啦?
6.be surprised at … 對…感到吃驚
7.borrow sth. from sb. 從某人那裡借入某物
8. needto do sth. (某人)需要做某事
doing sth. (某物)需要做某事
9.pay … for sth. 為某物付…(錢)
10.the same + n. + as… 與…一樣的n.
11 get on well with sb. 與某人相處融洽
12 have a fight with sb. 與某人爭吵
13.take part in 加入
14 plan sth. for sb. 為某人計劃某事
15.as much as possible 盡可能多的…
KP.
1. Sb. pay …for sth. 某人為某物花了…錢。
Sth. cost sb. … 某物花了某人…錢。
Sb. spend … on sth. 某人花了…(時間、金錢)在某事上。
(in) doing sth. 某人花了…(時間、金錢)做某事。
It takes/took sb. … to do sth. 花了某人…(時間、金錢)做某事。
2. not … until 直到…才… (主句動詞是短暫性動詞)
until 一直到… (主句中使用延續性動詞)
3. leave
GF
情態動詞
1.情態動詞沒有人稱和數的變化;
2 情態動詞不能直接做謂語,必須和一個動詞原形同時使用;
3.大多數情態動詞沒有時態的變化;
情態動詞加上be,通常表示猜測的語氣。

Unit3
UE
1.in front of ---- behind 在…的前面 ---- 在…的後面
in the front of ---- at the back of 在…的前部 ---- 在…的後部(包含在內)
2.take off 起飛
3.get out of 離開…
4.You are kidding. 胡說八道
5. follow sb. to do sth. 跟著某人做某事
6. get into 進入
7.shout at 訓斥、責備
shout to 向…喊叫
8 What happen? 發生什麼事了?
happen = take place 發生
9. in silence 沉默地
10. in space 在太空中
11.at the doctor』s 在診所
12.jump down from… 從…跳下
13. climb up the tree 爬上樹
KP
「as + 形容詞/副詞的原級+as」表示「和…一樣」
否定形式:「not as/so + 形容詞/副詞的原級+as」 表示「和…不一樣」
GF
1 The Past Progressive Tense
過去進行時
⑴用法:表示在過去某一時刻或某段時間內正在進行的動作。
⑵謂語結構:be ( was, were )+ Ving
⑶時間狀語:at that time/moment
at + 點鍾 + yesterday/last night
from +點鍾 + to +點鍾 + yesterday
this time yesterday
just then
when he came in, ….(when引導的時間狀語從句是過去時,並且動詞是短暫性動詞時,主句使用過去進行時)
2. when & while
when與while都是從屬連詞,都有「當……時」的意思。
when 可與一個點的時間或表示一段的時間連用,從句動詞可以是短暫性或延續性動詞;
while 只指一段時間,不能指一點時間。因此while從句中的謂語動詞必須是延續性動詞。

如果答案您滿意,請記得採納噢!謝謝(*^__^*) ……

F. 求初二英語下冊第三單元重點

What were you doing when the UFO arrived?
主句:What were you doing是過去進行時,過去進行時表示的是過去正在做的動作.
從句:when the UFO arrived是過去時.
整句意專思是屬」當不明飛行物到達的時候,你正在做什麼事情呢?」

G. 八年級英語下冊第三單元短語

Unit 3 What were you doing when the UFO arrived?
1. in front of 在……(范圍之外)的前面 in the front of 在……(范圍之內)的前面
2. barber shop 理發店
3. get out of 到……外,離開
4. walk down/along 沿……走
5. call the police 報警
6. take off (飛機)起飛;脫(衣帽)
7. an unusual experience 一次不尋常的經歷
8. the Museum of Flight 航空博物館
9. take photos 照相
10. a police officer 警官
11. run away跑開,逃跑
12. walk around 四處走走
13. think about 考慮,思考,回想
14. Beijing Iternational Airport 北京國際機場
15. at the doctor』s 在醫務室,在診所
16. in (the) hospital 在醫院,在住院
17. in history在歷史上
18. the city of ……城,……市
19. hear about/of 聽說,得知
20. ask sb. (not) to do sth. 叫某人(不要)做某事
21. in silence沉默不語
22. take place發生
23. the World Trade Center 世貿中心(美國)
24. in space 在太空
25. a national hero 民族英雄
26. all over the world = around the world 全世界

H. 八年級英語下冊第三單元的知識點有哪些

Unit 3 What were you doing when the UFO arrived?

【單元目標】
1.單詞與短語
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.目標句型:
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.語法
1. 過去進行時
2. 情態動詞的用法Ⅱ
【重難點分析】
一. 過去進行時
過去進行時表示過去某一時刻或者某段時間正在進行或發生的動作,常和表過去的時間狀語連用,如:
I was doing my homework at this time yesterday.昨天的這個時候我正在做作業。
They were waiting for you yesterday.他們昨天一直在等你。
過去進行時的構成:
肯定形式:主語+was/were+V-ing
否定形式:主語+was not (wasn't)/were not (weren't)+V-ing
疑問形式:Was/Were+主語+V-ing。

基本用法:
1.過去進行時表示過去某一段時間或某一時刻正在進行的動作。常與之連用的時間狀語有,at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+點鍾+yesterday (last night / Sunday…),when sb. did sth等時間狀語從句,如:
What were you doing at 7p.m. yesterday? 昨天晚上七點你在干什麼?
I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到瑪麗是在三年前,當時她在一家無線電商店工作。
I was cooking when she knocked at the door. 她敲門時我正在做飯。
2. when後通常用表示暫短性動詞,while後通常用表示持續性動詞,因此它所引導的狀語從句中,謂語動詞常用進行時態,如:
When the car exploded I was walking past it.= While I was walking past the car it exploded.
3.when用作並列連詞時,主句常用進行時態,從句則用一般過去時,表示主句動作發生的過程中,另一個意想不到的動作發生了。如:
I was walking in the street when someone called me. 我正在街上走時突然有人喊我。
4. when作並列連詞,表示「(這時)突然」之意時,第一個並列分句用過去進行時,when引導的並列分句用一般過去時。如:
I was taking a walk when I met him. 我正在散步,突然遇見了他。
We were playing outside when it began to rain. 我們正在外邊玩,這時下起雨來了。
二. 情態動詞(Modal Verbs )Ⅱ

4、情態動詞表示「應該」、「必須」 (shall, should, may, might, must, ought to)
(1)shall 和 should 用於表示「必須」:
①. Each member shall wear a name card. (表示規定) 每一個會員必須配帶名卡。
②. I should answer his letter as soon as possible. (表示應該) 我應該盡快給他回信。
③. You shouldn't judge a man always by the clothes. (shouldn't 「不應該」含有勸告的意思)
你不應該總是以貌取人。
④. The rules shall take effect on Jan. 1st. (shall 用於規章等,表示義務和規定)
新規則於一月一日起生效。
(2)may 和 might 用於表示「應該"(多用於法律等條文,一般上多用 shall):
①. Payment may be paid by check.(表示規定) 應以支票付款。
②. You might ask before you use my computer. (might表示應該)
你應該先問過再使用我的電腦。
(3)must 用於表示「必須」、「務必」:
①. You must keep the place clean. (務必) 你務必保持地方干凈。
②. We must obey orders. (表示有義務) 我們必須服從命令。
③. Must I pay now? (用於疑問句) (如回答不必時,需用 needn't 或 don't have to)
我現在就得付款嗎?
5、情態動詞表示「意圖」、「打算」
(will, would, shall, should)
(1)will 和 would 用於表示某種意圖:
①. I'll call you as soon as possible. (will 主要用於第一人稱) 我會盡快打電話給你。
②. Will you accept this invitation? (用would 則表示更客氣) 你願意接受這邀請嗎?
③. Who will do the job? (用於條件句,可用於各種人稱) 誰願意做這事?
④. We won't (will not) stay here too long. (will not 表示不願) 我們不願呆在這里太久。
(2)shall 和 should 用於表示說話人的意圖:
①. We shan't (shall not) go if it rains. (shall not 也可用 will not)
如果下雨,我們就不打算走了。
②. I shan't go with you. (shall 只用在第一人稱) 我不打算和你一同走。
6、情態動詞表示「意願」
(will, would, shall, should)
(1)will 和 would :
①. She will do it if you ask her.(表示主語的意願) 如果你問她,她會做的。
②. Would you have another cup of tea? (用 would 比 will 客氣) 你想再來一杯茶嗎?
③. Will you have some cookies? (will用於疑問句,表示問人是否願意)你想吃些烤餅嗎?
④. If he will, he can do it. (will 用於條件句,用於第二、三人稱) 如果他願意,他會做的。
⑤. Would you excuse me? (would 表示婉轉語氣) 你能原諒我嗎?
(2)shall 和 should :
①. He shall get his allowance. (注意是he shall, 表示說話人的意願)他會拿到他的津貼的。
②. You should sit here as long as you like. 只要你樂意,坐多久能行。
③. Shall you go to school with me? (疑問句中,表示問對方的意願)
你願意和我一起到學校去嗎?
三. 重點詞彙
1.cut v.切;剪;割
cut (one』s)hair 理發
Be careful.Don't cut yourself.小心,別切到自己。

2.alien n.外星人
Nobody knows whether there are aliens or not.沒人知道到底有沒有外星人。
An alien got out of the UFO. 一個外星人從不明飛行物里出來。

3.land v.登岸;登陸;降落
The plane will land in ten minutes.飛機將在十分鍾後降落。
A UFO landed in the middle of the field.. 一個不明飛行物降落在田野中間。

4.while conj.當……的時候;在……之時
While I danced, she sang.我跳舞,她唱歌。
While he was singing, I was playing baseball. 他當時在唱歌,而我在打棒球。

5.right adv.正好;恰好
The accident happened right over there.事故正好發生在那裡。
He lives right in the center of the city. 他恰好住在市中心。

6.surprised adj.驚奇的;吃驚的
I was surprised that he was late for the party.我很驚訝他聚會居然遲到了。
She was surprised that I didn』t know about that. 她很吃驚我竟不知那件事。

7.kid v.欺騙;哄騙
I'm not kidding you.我沒有騙你。
You』re kidding = No kidding. 別開玩笑了。

8.anywhere adv.到處;無論哪裡(用於否定句和一般疑問句中)
Did you go anywhere yesterday? 你昨天去沒去過什麼地方?
They didn』t go anywhere the day before yesterday. 他們前日天哪裡也沒去

9.happen v.發生
A funny thing happened in the subway yesterday. 昨天地鐵里發生了一件有趣的事。
What happened to him on that day? 那天他怎麼了?(發生了什麼事?)
sth. happen to +名詞 發生於……身上
She hoped nothing bad would happen to him.她希望不會有壞事發生在他身上。

10.get out of 從……出去
She tried to get out of helping her mother.她盡量逃避幫助她的媽媽。
Tom got out of the lift and walked to the station. 湯姆走出電梯然後往車站走去。

11.run away 跑開;迅速離開;逃走
The thief ran away when someone noticed him.當有人注意到他的時候,那個賊立刻逃走了。

12.at the doctor's 在診所;在醫院
I'm thinking of going to the tailor's.在表示診所、店鋪或某人的家時,經常用名詞所有格的形式。
Mr. Cool』s = Mr. Cool』s clothes store at Jason』s = at Jason』s store
She is staying at Mary's.她住在瑪莉家。
I want to go to the tailor』s. 我想到裁縫店去一趟。

13. see sb. Do sth. 看見某人做(過)某事
she saw the alien get out. 她看見外星人出來.

四.詞語辨析
1、in front of 與in(at) the front of
in the front of 在……的前面 (表示「有距離的前面」,在一個參照物的前面)
e.g.: There is a car in front of the house. 房子前日面有一輛車
in(at) the front of 在……的前頭,前排(列)(在一個范圍內的前面部位)
eg. She sat in the front of the bus. 她坐在公交車的前排

2、get out of 與get into 是反義詞
get into走進,進入
eg. He get out of the car and get into the building.

3、be amazing與be amazed
be amazing 令人驚奇的(修飾事物的,指某事令人驚奇,比surprising更具意外性
e.g.:She has an amazing talent for music.她在音樂方面有驚人的才華。
Isn』t that amazing .那不很令人意外嗎?
be amazed (at sth./to do …/that 從句)(某人)對…(因…而)大感驚訝(指人作主語)
eg. We were amazed at the news.=We were amazed to hear the news.
我們對這個消息感到非常驚訝.

4、be surprising與 be surprised
be surprising令人驚奇的(用法與be amazing一樣,也是修飾事物的)
e.g.:a surprising ending 一個令人驚奇的結局
be surprised (at sth./to do…/that從句) (某人)對…(因…而)感到驚奇,用法與be surprised
一樣,也是人作主語。
eg. They were surprising that he was badly hurt in the audient. 他們很吃驚他在那次事故中傷得很重。

5、in a tree與 on a tree
eg. Are there any birds in the tree? 樹上有些鳥嗎?
on a tree 在樹上(指長在樹上的東西)
Look! There are many apples on the tree.

6、my flight to New York 與 fly to New York
前者是一個名詞短語,後者是一個動詞短語。
eg. Her flight to Paris is taking off at 2 p.m.
She is flying to Paris at 2 p.m.

五.課文解釋:
1. You can imagine how strange it was!你可以想像這事有多驚奇!
eg. You can imagine how fast he runs!

2. I followed it to see where it was going
follow sb. to do sth. 跟隨…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. 她未想到去車站外看看.

4. say to sb. 對某人 say to oneself 自言自語
e.g.: He said to himself, 「Don』t be afraid.」 他自言自語,「不要害怕」

5. look for 尋找(強調找的「過程」) find 找到(強調找的「結果」)
eg. He looked for his lost key everywhere but couldn』t find it.

6. It was difficult to get out of bed. 從床爬起來很難。
It is difficult/hard to do sth. 做某事很難。
He found that it was difficult to learn physics well.

7. be killed 被殺害 be destroyed by… 被……摧毀……

8. walk home together in silence 沉默著一起走回家
in silence 狀語(狀態)

9. Not all events in history are as terrible as this.
並不是所有的歷史上的大事件都像此事這樣可怕。
Not all 並不是所有的(部分否定)
As…as… 與……一樣(as與as之間用形容詞、副詞的原級)

10. become the first Chinese astronaut in space. 成為中國首位進入太空的宇航員

11. His flight around the Earth Lasted about 22 hours. 他的環繞地球的飛行持續了22個小時。

12. Do you think sth. good can come out of sth. terrible? 你認為壞事能變為好事嗎?

I. 八年級下冊英語學過的所有語法總結!

人教版新目標8年級下英語語法重點
Unit
1
Will
people
have
robots?
重點語法:一般將來時態的應用
Unit
2
What
should
I
do?
重點語法:過去將來時態(將來時態的委婉說法)
Unit
3
What
were
you
doing
when
the
UFO
arrived?
重點語法:過去進行時態
Unit
4
He
said
I
was
hard-working.
重點語法:賓語從句
Unit
5
If
you
go
to
the
party,
you'll
have
a
great
time!
重點語法:if
引導的條件狀語從句
Unit
6
How
long
have
you
been
collecting
shells?
重點語法:現在完成進行時態
Unit
7
Would
you
mind
turning
down
the
music?
重點語法:mind
[one's]
doing
sth.
介意(某人)做某事
Unit
8
Why
don't
you
get
her
a
scarf?
重點語法:詢問別人為什麼要做或者不做某事
Unit
9
Have
you
ever
been
to
an
amusement?
重點語法:現在完成時態
Unit
10
It's
a
nice
day,
isn't
it?
重點語法:反意疑問句
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