⑴ 初二英语语法有哪些啊、
一、意义与构成
1. 意义:表示过去
1) 发生或已经完成的动作对现在造成影响或后果
2) 某一时间开始并一直持续到现在的动作或状态
2. 基本构成:have/has+ done (过去分词)
3. 句型
基本结构:主语+have/has+ done (过去分词)
a. 肯定句:主语+have/has+ done (过去分词)
b. 否定句:主语+have/has+not+ done (过去分词)
c. 一般疑问句:Have/Has+主语+ done (过去分词)
d. 特殊疑问句:特殊疑问词+have/has+主语+ done过去分词
二、过去分词
与动词的过去式一样,动词的过去分词有规则动词过去分词和不规则动词过去分词两种。
1. 规则动词:规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同
1) 一般动词,在词尾直接加“ ed ”
如:work—worked—worked; play—played—played; enjoy—enjoyed—enjoyed.
2) 以“e”结尾的动词,只在词尾加“d ”
如:dance—danced—danced; live—lived—lived; place—placed—placed.
3) 以“辅音字母 + y ”结尾的动词,将 “y” 变为 “i” ,再加“ed”
注意:元音字母+y结尾的动词的过去分词的变法参见一般动词。
如:carry—carried—carried; hurry—hurried—hurried; cry—cried—cried
4) 重读闭音节结尾,末尾只有一个辅音字母,先双写这个辅音字母,再加“ed”
如:plan—planned—planned; stop—stopped—stopped; drop—dropped—dropped
2. 不规则动词
不规则动词的过去分词有5种形式:
A-A-A 如:cost—cost—cost; cut—cut—cut; hit—hit—hit
A-B-B 如:bring—brought—brought; build—built—built; catch—caught—caught;
keep—kept—kept; sell—sold—sold; smell—smelt—smelt;
learn—learnt—learnt; say—said—said; meet—met—met;
make—made—made; leave—left—left
此类变化涉及到的动词较多,需要同学们认真记忆。
A-B-C 如:begin—began—begun; blow—blew—blown; drive—drove—drive;
break—broke—broken; forget—forgot—forgotten; eat—ate—eaten;
take—took—taken; do—did—done
此类变化涉及到的动词较多,需要同学们认真记忆。
A-A-B 如:beat—beat—beaten
A-B-A 如:come—came—come
不规则动词的过去分词变化规则多,但是还是有一定的规律所循,希望同学们多花心思,细心记下,这是使用完成时态的基础。
三、用法
1. 现在完成时用来表示过去已发生过或完成的动作或状态,但其结果却和现在有联系,也就是说,动
作或状态发生在过去但它的影响现在还存在。
I have spent all of my money. 我花光了身上所有的钱。
(含义是:I don’t have any money now.)
Jane has laid the table. Jane已经把桌子摆好了。
(含义是:We can sit and have dinner.)
Michael has been ill. Michael病了。
(含义是:He can’t come to school.)
He has returned from abroad. 他已经从国外回来了。
(含义是:He’s at home now.)
2. 现在完成时可以用来表示发生在过去某一时刻的,持续到现在的情况,常与for(+时间段),
since(+时间点)连用。
Mary has been ill for three days. Mary已经病了三天了。
I have lived here since 1998. 我从1998年起一直住在这。
I have been a teacher for 10 years. 我当老师已经10年了。
注意:点动词(buy, die, join, finish等)不能直接与for, since 连用,需要改变动词。
1) have代替buy
I have bought new car. 他买了辆新车。(含义:他自己有车,不用搭别人车等。)
I have had this bike for almost 7 years. 我买这辆自行车七年了。
2) 用keep或have代替borrow
He has kept the book for a long time. 他借这书好长时间了。
3) 用be in替代come to/ join/ move to等
How long have you been in America? 你来美国多久了?
4) 用be+副词 替代start/ get up/ return to/go back to
The show has been on for half an hour. Hurry up!
演出已经开始了半个小时了。快点!
I’ve been up for an hour, but I still feel sleepy.
我起床已经一个小时了,但是我还是觉得很困。
He has been back to his hometown for a year, but he’s still missing the life in the
city.
他回到故乡都一年了,但是他还是很怀念城市生活。
总之,后加时间的完成时表达中,都表达一个动作所延续的时间,而点动词只表达那一动作,动作之后所处的状态,应该用相应的状态词来表达,如come是“来”的意思,而来之后的日子都是“在…”因为不能用come表达,应该用be in…来表达,意为“一直处于…”。
3. 现在完成时的时间状语
现在完成时属于现在时范围,故不能和过去的时间状语连用。如:yesterday, last Sunday,
in1990, three years ago等。但是,在强调动作产生的后果和影响时,可以和一些表示不确定的时
间状语连用。
如:I have finished my homework yesterday. (×)
I finished my homework yesterday. (√)
1)副词already和yet
already一般用于肯定句中,yet一般用于否定句和疑问句中。
如:I’ve already slept for 12 hours but I’m still feeling tired.
我都睡了12个小时了可是我还是很累。
I haven’t finished working yet.
我还没有完成工作。
Have you found your lost cat yet?
你找到你丢了的小猫了吗?
2)ever和never
多用于否定或疑问句中,表示“曾经”或“从未”。
如:---Have you ever been to the Great Wall? 你曾经去过长城吗?
---No, I haven’t. I have never been to the Great Wall. 没有。我从未去过长城。
3)用表示到说话为止的过去时间状语,如:just, before, up to now, the past few years等。
如:I have just finished my paper. 我才写完我的论文。
I’ve dream about that before. 我以前梦到过那个情景。
Up to now, he has got 3 gold medals in the Olympic Games.
到现在为止,他已经在奥运会中取得了三块金牌。
He has been there three times the last few days.
近几年他去过那里三次了。
4)用包括“现在”在内的时间状语,如:now, today, this morning (month, year, term)等。
如:---Have you met him today?
---No, I haven't.
---今天你见过他吗?---没有。
How many times have you been there this year?
今年你去过那里多少次?
⑵ 初二英语几个重点语法
一. 知识点总结:
(一)
一般将来时
一般将来时表示将来某个时间要发生的动作或者存在的状态。通常与表示将来的时间状语连用,如tomorrow, the day after tomorrow, next year, next month, next week, in 100 years等。
be going to do (动词原形)结构:表示打算、准备做的事情或者肯定要发生的事情。如:It is going to rain.
will do 结构表示将来的用法:
1. 表示预见
Do you think it will rain?
You will feel better after a good rest.
2. 表示意图
I will borrow a book from our school library tomorrow.
What will she do tomorrow?
基本构成如下:
一般疑问句构成:
(1)will+主语+do…? Will Sarah come to visit me next Sunday?
(2)there be 结构的一般疑问句:Will there + be …?
Will there be fewer trees? Yes, there will. / No, there won’t
否定句构成:will + not (won’t)+do
Sarah won’t come to visit me next Sunday.
特殊疑问句构成:
特殊疑问词+will+主语+…?What will Sarah do next Sunday?
根据例句,用will改写下列各句
例:I don’t feel well today. (be better tomorrow)
I’ll be better tomorrow.
1. Gina has six classes today. (have a lot of homework tonight)
_____________________________
2. I’m tired now. (sleep later)
_____________________________
3. My parents need a new car. (buy one soon)
_____________________________
4. We can’t leave right now. (leave a little later)
_____________________________
5. The weather is awful today. (be better tomorrow)
_____________________________
答案:1. She’ll have a lot of homework tonight.
2. I’ll sleep later.
3. They’ll buy one soon.
4. We’ll leave a little later.
5. Maybe it’ll be better tomorrow.
(二)should的用法:
should用来提出建议和忠告,后边加动词原形,否定句直接在should后边加not.
例如:I think you should eat less junk food.
我认为你应该少吃垃圾食品。
She drives a lot and she seldom walks. So I think she should walk a lot.
她经常开车,很少走路。所以我认为她应该多走路。
Students shouldn’t spend too much time playing computer games.
学生们不应当花太多的时间玩计算机游戏。
学习向别人提建议的几种句式:
(1)I think you should…
(2)Well, you could…
(3)Maybe you should …
(4)Why don’t you…?
(5)What about doing sth.?
(6)You’d better do sth.
用should或shouldn’t填空
1. I can’t sleep the night before exams.
You ______ take a warm shower before you go to bed.
2. Good friends ______ argue each other.
3. There is little milk in the glass. We _______ buy some.
4. They didn’t invite you? Maybe you ______ be friendlier.
5. I am a little bit overweight. So I think I _______ do exercises every day.
答案:1. should 2. shouldn’t 3. should 4. should 5. should
(三)
过去进行时
过去进行时表示过去某一点时间正在进行的动作或者过去某一段时间内一直进行的动作。
1. 构成
was /were + doing,例如:
I was watching TV at 9 o’clock last night.
at 9 o’clock last night是时间点
They were playing football all afternoon.
all afternoon是时间段
2. 过去进行时的标志词
at 8 o’clock last night, this time yesterday等。例如:
I was having lunch at home this time yesterday.
昨天的这个时候我正在吃午饭。
At that time she was writing a book.
那阵子她在写一本书。(表示她在那段时间里一直在做那件事情。)
用括号中所给动词的适当形式填空。
1. This time yesterday I ____ ______(read)books.
2. At 9 o’clock last Sunday they ______ ______(have)a party.
3. When I _____(come)into the classroom, she ________ ______(read)a storybook.
4. She _____ ______(play)computer games while her mother ____ ______(cook)yesterday afternoon.
5. I _____ ______(have)a shower when you _______(call)me yesterday.
答案:1. was reading 2. were having 3. came; was reading
4. was playing; was cooking 5. was having; called
(四)
间接引语
形成步骤:
(1)不要逗号,冒号,引号
(2)要考虑到人称的变化(人称的变化与汉语是一致的)
(3)要考虑时态的变化
(4)要考虑时间状语、地点状语和语示代词的变化。
1. 直接引语变成间接引语时,几个主要时态的变化规律
直接引语 间接引语
一般现在时 一般过去时
一般将来时 过去将来时
现在进行时 过去进行时
2. 直接引语变成间接引语时,一些词汇的变化规律
直接引语
1. am / is
2. are
3. have / has
4. will
5. can
6. may 间接引语
1. was
2. were
3. had
4. would
5. could
6. might
用括号中所给动词的适当形式填空。
1. She said I _____(be)hard-working.
2. Peter told me he _____(be)bored yesterday.
3. She said she _____(go)swimming last Sunday.
4. Bobby said he _____(may)call me later.
5. Antonio told me he _____(read)a book then.
答案:1. was 2. was 3. went 4. might 5. was reading
请转述他人说的话:
1. I go to the beach every Saturday. (Tom)
2. I can speak three languages. (Lucy)
3. I will call you tomorrow. (Mike)
4. I’m having a surprise party for Lana. (she)
(五)
if引导的条件状语从句
结构:if+一般现在时,主语+将来时
含义:如果……,将要……
例如:If you ask him, he will help you.
如果你请求他,他会帮助你。
If need be, we’ll work all night.
如果需要,我们就干个通宵。
根据中文提示,完成句子。
1. 如果你参加聚会,你将会过得很开心。
If you ________ the party, you __________.
2. 如果明天下雨,我们将不去野餐。
If it __________ tomorrow, we ___________.
3. 如果你经常听英文歌,你将会喜欢英语的。
If you often ________, you _________________.
答案:
1. If you go to the party, you will have a good time
2. If it rains tomorrow, we won’t go to the picnic
3. If you often listen to English songs, you’ll like English
二. 完形填空特点及解题思路
(一)题型分类与特点
完形填空试题是在给出的一篇短文中有目的地拿掉若干个词,留下一些空格,要求考生借助短文保留的部分,从所给的短文整体出发,在正确理解短文意思的基础上,根据句子和句子间的内在联系、词的用法和习惯搭配等,用适当的词或词语填空,使补全后的短文意思通顺、前后连贯、结构完整。这种题型测试的内容从形式上看是单词或短语的填空,但它必须注意到短文中上、下文意思连贯、词语搭配和语法结构正确,所以在空格上所填的词必须符合语义适用和语法正确两条原则,只考虑某一侧面都可能导致错误。中考中完形填空试题的基本题型分两类:完形填空选择题和完形填空题。
1. 完形填空选择题:该题型的特点是将一篇短文中若干词语抽掉留下空格,对每一空格提供若干个选择项,要求考生通读短文后,在理解短文意思的基础上,运用所学的词汇、句型、语法等语言知识,从所提供的备选项中选出一个最佳答案,使短文内容完整正确。中考完形填空主要以这种题型为主。它所给的短文一般与初中英语教材难易程度相当,字数在150-200个单词之内,多数设置10个左右空格,所设考点涉及词汇、语法及对短文内容的理解。短文的第一句一般不设空,以期提供一个语境,对每一空格设置的选项基本都属于相同或对等的词类,给判定选择带来一定的干扰,侧重考查了考生准确运用词汇的能力及对短文的整体理解和逻辑推理能力。
2. 选词填空题:该题型的特点是把抽出的词打乱顺序,不按原文顺序排列,放在短文前面或后面的方框内,有时还增加几个文外的词,要求考生从中选出适当的词以正确的形式填入短文空格内。
(A)
Jack wanted to ask for two days off, 1 he had only learnt the phrase (短语)“have a day off”. He 2 , then he had an idea. “Grandmother is ill. May I have a day off, 3 ? ”he asked the teacher. “Of course, you can. ”replied (答复)the teacher at once. After a while, the boy came to 4 at the teacher’s door. “May I have a day off 5 ? ”The teacher was very surprised, “Didn’t you 6 it just now? ”“Yes, sir. But I can’t be here 7 , either. ”The teacher understood him and could not help 8 . Then he said with a smile, “Why didn’t you say‘May I have two days off? ’”The boy answered quickly 9 a loud voice. “But you only 10 us‘have a day off! ’”
( )1. A. but B. and C. or D. for
( )2. A. thought hardly
B. thought hard and hard
C. hard thought
D. thought and thought
( )3. A. Miss B. sir C. teacher D. Mr
( )4. A. strike B. best C. hit D. knock
( )5. A. also B. again C. too D. once
( )6. A. speak B. tell C. say D. do
( )7. A. tomorrow
B. the day after tomorrow
C. yesterday
D. the day before yesterday
( )8. A. laugh B. to laugh C. laughed D. laughing
( )9. A. with B. on C. in D. by
( )10. A. teach B. taught C. are teaching D. were teaching
(B)
请根据内容从所给的15个单词中选出最恰当的10个填入空白处,使短文完整,有些词要根据需要作适当的词形变化。
than, so, tell, us, them, report, beause, love, composition, understand, to, that, much, for, what
A generation gap (代沟)has become a serious problem. I read a _______(1)about it in the newspaper. Some children have killed _______(2)after quarrels (争吵)with parents. I think this is _______(3)they don’t have a good talk with each other. Parents now spend _______(4)time in the office. _______(5)they don’t have much time to stay with their children. As time passes, they both feel _______(6)they don’t have the same topics(话题)to talk about. I want to _______(7)parents to be more with your children, get to know them and understand them. And for children, show your feeling _______(8)your parents. They are the people who _______(9)you. So tell them your thoughts (想法). In this way, you can have a better _______(10)of each other.
完形填空选择题的一般解题思路是:
1. 跳过空格、通读全文、把握大意。先跳过空格,通读试题所给的要完形填空的短文,获得整体印象,做到弄清文脉、抓住主旨,较好地把握短文大意。要在阅读理解短文意思的基础上才开始判定选择,切忌仓促下笔。
2. 结合选项、综合考虑、初定答案。在理解全文意思的基础上,再结合所给备选项细读全文,联系上、下文内容,注意从上、下文的语法结构和词语搭配及从选择项中寻找解题的提示,以词、句的意义为先,再从分析句子结构入手,根据短文意思、语法规则、词语固定搭配等进行综合考虑,对备选项逐一进行分析、比较和筛选,排除干扰项、初步选定答案。
3. 瞻前顾后、先易后难、各个击破。动笔时要瞻前顾后、通篇考虑、先易后难。对比较明显直接的、自己最有把握的答案先做,一下子不能确定答案的,先跳过这一空格,继续往下做,最后回过头来再集中精力解决难点。这时可结合已确定答案的选项再读一遍短文,随着对短文理解的深入,可以降低试题的难度,提高选择的正确率。
4. 复读全文、逐空验证、弥补疏漏。完成各道题选择后,把所选的答案代入原文,再把全文通读一篇,逐空认真复查。看所选定的答案是否使短文意思前后连贯、顺理成章,语法结构是否正确,是否符合习惯表达法。如发现错误答案或有疑问的,应再次推敲、反复斟酌、做出修正。
完形填空试题的一般解题思路是:
1. 跳过空格、通读短文、了解大意。解题时先跳过空格,通读完形填空的短文,了解全篇的内容和要旨。要重视首句,善于以首句的时态、语气为立足点,理清文脉,推测全文主题及大意。
2. 复读短文、确定语义、判断词形。把握短文大意后再认真复读短文,利用上下文的语境,结合所学过的知识,先确定空格处所需词语的意义,再根据空格在句子中的位置,判断其在句中充当的成分,从而确定所填词的词性,再依据词语搭配和语法规则,判断所填的词的正确形式。
3. 三读短文、上下参照、验证答案。在短文的每一空白处填上一个词后,将完成的短文再细读一遍,上下参照,连贯思考。把所填的答案放入短文中进行检验,可从上、下文内容是否协调一致、顺理成章,语法结构是否正确无误等进行综合验证,凡有疑问必须重新推敲考虑。
(三)课文阅读指导
1. 初中阅读
阅读理解能力
(1)理解主旨要义
(2)理解文中具体信息
(3)根据上下文猜测生词的意义
(4)做出简单判断的推理
(5)理解文章的基本结构
(6)理解作者的意图和态度
2. 培养良好阅读习惯
(1)扩大视距
(2)克服声读
(3)克服逐字读
3. 猜测词文
(1)通过标题或主题句进行预测
(2)文章的标题或主题句可包括作者的意图和倾向、篇章的总体意义和深层意义,因此通过文章标题或主题句进行预测,以便正确理解。
(3)通过语篇标记进行预测
(4)语篇标记包括关联词、转换词也包括其他关键词。
(5)利用背景知识预测
(6)利用图片进行预测
⑶ 初二的重要英语语法有哪些
反义疑问句(The Disjunctive Question)又叫附加疑问句。它表示提问人的看法,没有把握,需要对方证实。反义疑问句由两部分组成:前一部分是一个陈述句,后一部分是一个简短的疑问句,两部分的人称时态应保持一致。
1. 陈述部分肯定式+疑问部分否定式
2. 陈述部分否定式+疑问部分肯定式
They work hare, don’t they?
She was ill yesterday, wasn’t she?
You didn’t go, did you?
He can’t ride a bike, can he?
请注意以下句型的反义疑问句的用法:
1. 当陈述部分的主语是I , everyone, everything, nobody 时,后面的疑问句应表示为:
I am a student, aren’t I
Everyone is in the classroom, aren’t they?
Everything begins to grow in spring, doesn’t it?
Nobody will go, will they?
2. 当陈述部分有never,seldom, hardly,few,little,barely, scarcely, nothing 等否定词时,后面的疑问句则表示为:
There are few apples in the basket, are there?
He can hardly swim, can he?
They seldom come late, do they?
3. 当陈述部分是I think 加从句时,疑问句应和从句的人称时态保持一致。
I think chickens can swim, can’t they?
I think Lucy is a good girl, isn’t she?
I didn't think he was happy, was he?
4. 陈述部分有had better 时,疑问句应用hadn’t开头:
you’d better get up early, hadn’t you?
5. 当陈述部分是祈使句时,疑问句要根据语气来表达:
Let’s go out for a walk, shall we?
Let us go our for a walk, will you?
Turn on the radio, will you?
6. 反义疑问句的回答用yes, no, 但是,当陈述部分是否定形式时,回答要按事实。如:
They don’t work hard, do they? 他们不太努力工作,是吗?
Yes, they do. 不, 他们工作努力。/No, they don’t. 对, 他们工作不努力。
一、反意疑问句的一般情况
1.当陈述部分的主语是:等everyone, everybody, someone, no one, nobody, somebody合成代词时,附加疑问句的主语非正式文体中往往they用。(也可以按语法一致原则用单数。)
2.当陈述部分以one不定代词做主语时,附加问句的主语在正式常场用one,非正式场合用he。
3.当陈述部分的主语是不定式、动名词、从句、this或that,附加疑问句的主语用it。(是those, these则用they)
4.当陈述部分的主语是表示物的不定代词everything, anything, nothing等,附加问句的主语用 it。
5.陈述部分带有否定词或半否定词,例如:never, hardly, scarcely, seldom, no, none, no one, rarely, nowhere, nothing, nobody, few, little等,附加疑问句的动词要用肯定形式。
6.如果陈述部分中的否定词仅带有否定的前缀或后缀,那么该陈述句应作肯定句处理,附加疑问句应用否定形式。
二、常见句型的反意疑问句
7.当陈述部分是there be 存在句型时,附加疑问句的主语也用there。
8.感叹句的附加疑问句,其谓语要求用否定句。
9.祈使句后面的附加疑问句问题
A) 祈使句是否定形式,附加疑问句只能用will you。
B) 祈使句是肯定形式,附加疑问句用肯定、否定均可。
C) Let开头的祈使句要注意:
1.Let’s 在意义上包含谈话的对方在内,表示提出建议或征求对方意见,其反意疑问句往往用shall we。
2. Let us 在意义上一般不包含谈话的对方在内,表示请求对方允许做某事的含义,let 有allow的意思。附加疑问部分用will you。
3. Let me 开头表示请求,附加疑问句用will you,或用may I。
三、复合句的反意疑问句
10.当陈述部分是一个(带that引导宾语从句的)主从复合句时,附加疑问句的主谓要和主句的主谓保持对应关系。但是,当陈述部分的主语是:I suppose, I think, I believe, I imagine, I expect等结构时,附加疑问句的主语和谓语要和从句的主语,谓语保持一致关系。而且要注意到否定的转移问题。
11.当陈述部分是I’m sure that,;we are sure;I’m afraid that;We are sure that;I feel sure that 等后面跟宾语从句时,反意疑问句与后面的宾语从句一致。
12.当陈述部分是并列句时,附加疑问句的主谓语要和离它最近的句子的主谓保持对应关系。
四、关于情态动词的反意疑问句
13.陈述部分中有have一词,且表示“所有”含义时,附加疑问句部分既可用have也可用do。
14.陈述部分中有have to,附加疑问句部分用do。
15.含有ought to 的反意疑问句,陈述部分是肯定的,疑问部分用shouldn't / oughtn't +主语。
He ought to know what to do, oughtn't he? / shouldn't he?
16.陈述部分有used to,附加疑问句部分可用used 也可以用did 。
17.陈述部分有needn’t时,附加疑问句部分用need但有时也可用must。
18. 陈述部分有must,且表示“必须”时,附加疑问句部分用mustn’t,如果表示“必要”则用needn’t。
19.陈述部分中是mustn’t表示“禁止”时,附加疑问句部分用must。
陈述部分中的must表示“一定”、“想必”等推测意义时,附加疑问句部分而是根据陈述部分的谓语动词或其助动词来定。
20.陈述部分是I wish, 表示询问或征求意见,附加疑问部分用may I。
21.弄清陈述句中的’d rather = would rather;’d better = had better附加疑问句部分前者用would,后者用had。
其它特殊结构的反意疑问句
22.陈述部分的主语是each of...结构时,附加疑问句在强调整体时用they,当作个别时用he。
23.陈述部分有neither...nor...(either...or...)做并列主语,附加疑问部分根据其实际逻辑意义而定。
Neither you nor I am engineer, are we?
24.陈述部分是:I’m ....结构,附加疑问句一般用aren’t I?
25. 陈述部分有had better + v. 疑问句部分用hadn't you?
You'd better read it by yourself, hadn't you?
26. 陈述部分有would rather +v.,疑问部分多用 wouldn't +主语。
He would rather read it ten times than recite it, wouldn't he?
27. 陈述部分有You'd like to +v. 疑问部分用wouldn't +主语。
You'd like to go with me, wouldn't you?
28. 带情态动词dare或need的反意疑问句,疑问部分常用 need (dare ) +主语。
We need not do it again, need we ?
He dare not say so, dare you?
当dare, need 为实义动词时,疑问部分用助动词do + 主语。
She doesn't dare to go home alone, does sh
⑷ 初中八年级英语所有语法
现在完成时
1.构成
现在完成时是由助动词 have(has)+动词的过去分词构成。助动词说明该谓语是属于现在时范围。它和主语的人称、数要保持一致。过去分词是主要的谓语动词,说明句子的意义。
2.用法
(1)表示动作发生在过去某个不确定的时间,但对现在留下了某种影响和结果。常被just, already, yet 等副词修饰。常与非延续性动词连用。 如:
-Have you had lunch yet? -Yes, I have. I've just had it. 你(已经)吃午饭了吗? 我刚刚吃过。(现在我不饿了)
(2)表示从过去某一时刻开始一直持续到现在的动作或状态。这个动作可能刚停止,可能仍然在进行。常用延续性动词,常带有for和since(自从)等表示一段时间的状语。
如:He has taught here since 1981. 他自1981年就在这儿教书。(可能还要继续教)
I haven't seen her for four years. 我有四年没见到她了。
(3)表示说话前发生过一次或多次的动作,现在成为一种经验,一般译为汉语“过”,常带有twice, ever, never, three times等时间状语。
如: I have been to Beijing twice. 我去过北京二次。
3.结构
1)陈述句结构:主语+have( has)(not)+过去分词+其它。have not=haven’t has not= hasn’t.
2) 一般疑问句结构:Have( Has )+主语+过去分词+其它?
3) 特殊疑问句:特殊疑问词+have(has) +主语+ 过去分词+其它?
e.g. He has already finished his homework.
He hasn’t finished his homework yet.
Has he finished his homework yet? --Yes, he has. / No, he hasn’t. / No, not yet.
4.现在完成时的时间状语
1)现在完成时属于现在时范围,故不能和过去的时间状语连用。如: yesterday, last Sunday, in1990, three years ago等。但是,在强调动作产生的后果和影响时,可以和一些表示不确定的时间状语连用。
a. 用副词already和yet。already一般用于肯定句中,yet一般用于否定句和 疑问句中。如:We have already finished our homework.我们已完成作业了。
They haven't finished their homework yet.他们还没有完成作业。
b. 用ever 和never。多用于否定或疑问句中,表示“曾经”或“从未“等。 如:-Have you ever been to the Great Wall?你曾经去过长城吗?
-I have never been to the Great Wall.我从未去过长城。 c. 用表示到说话为止的过去时间状语,如just(刚刚), before(以前), up to now(直到现在)/ until now, in the past (few years/ three days 等), so far (迄今为止) recently 等。 例如:I have seen her before, but I can not remember where. 我以前见过她,但记不起在哪里见过。
He has been there three times the last few days. 近几年他去过那里三次了。 d.用包括“现在”在内的时间状语,如:today, this morning (month ,year, term等.例如:-Have you met him today? - No, I haven't. 今天你见过他吗?我没有。
How many times have you been there this year? 今年你去过那里多少次?
2) 现在完成时可以和带有since或for等表示“一段时间”的状语连用,表示动作或状态从某一时刻开始,一直持续到现在。如:I haven't seen him for two years. 但是,像come, arrive, buy等终止性动词不能与表示“一段时间”的状语连用。要用,必须改为“be(在)”等延续性动词来表述。现归纳总结一下由非延续性动词到延续性动词的转换:
arrive → be here begin (start) → be on die →be dead come back → be back leave → be away fall ill (sick, asleep) → be ill (sick, asleep) go out →be out finish →be over put on →wear 或be on get up →be up join →be in / be a member of… open → be open close →be closed go to school→ be a student borrow →keep buy →have catch(a cold)→ have(a cold) get to know →know begin to study → study come to work→ work
如:He has been a soldier for three years.他参军三年了。或He has been in the army for there years. 不可以说He has joined the army for there years.
His father has been dead for two years.他父亲去世二年了。(不可以说has died)
The film has been on for ten minutes.电影已开始十分钟了。(不可以说has begun)
We have studied English for three years. (不可以说have begun) 我们(开始)学英语已三年了。
5. 现在完成时和一般过去时的区别
现在完成时和一般过去时都表示在过去完成的动作。但现在完成时强调的是这一动作与现在的关系。如对现在产生的结果或影响等,而一般过去时只表示动作在过去某一时刻发生,不表示和现在的关系。试比较:
I have lost my new book. 我把新书丢了。(现在还未找到)
I lost my new book yesterday. 我昨天把新书丢了。(昨天丢的,现在找到与否没说明)
6.几点注意事项 (1)have been(to)与have gone( to)的区别:have been(to) 表示“去过某地(现在已经回来了)”,可用于各人称;have gone(to) 表示“去某地了(说话时某人不在当地)”,常用于第 三人称,前者可与once ,never, several times等连用,后者则不能。如:They have been to Beijing twice.他们去过北京两次。 He has gone to Beijing . 他去北京了。 (2)“It is或has been + 一段时间+ since引导的时间状语从句”表示“某人干某事已经多长时间了”。since从句的谓语要用非延续性动词 若动词延续,则译成相反的意思。如:It is two years since his father died. =His father has been dead for two years.他父亲去世已有三年了。 It is two years since his father lived here. 他爸爸不住这儿已有三年了。 (3)终止性动词现在完成时的否定式,已变成一种可以延续的状态,因此可以和表示一段时间的状语连用。如:I haven't left here since 1997.自从1997年以来,我一直没有离开过这儿。 (4).提问for短语或since状语用how long。
(5).完成时的否定形式与比较级连用表达最高级含义。如:
I have never seen a better film.我从未看过一部更好的电影。(这部最好)
注:否定式与比较级连用表示最高级含义不一定用于完成时态。如:
--- What about going fishing? --- I can’t agree more.(我再同意不过了哦)
.语法—直接引语变间接引语(多数情况下变为宾语 从句)
(1). 直接引语如果是陈述句,变为间接引语时,用连词that 引导(口语中可以省略引导词)宾语从句。把下列句子变为间接引语或直接引语:
a. “I’ll visit my aunt tomorrow.” Lily said. ____________________________.
b. Our teacher often say to us,” It’s important to finish your homework.”
_______________________________________________________
c. They said they would meet at 9:00 p.m. that night.
“_______________________________________.”they said.
d. Lana said that she wasn’t mad at Marcia anymore.
Lana said’”_______________________________.”
(2). 直接引语如果是一般疑问句,变为间接引语时,变为由连词if 或whether引导的宾语从句。把下列句子变为间接引语或直接引语:
a. “Will you have a surprise party for me?” he asked me.
_______________________________________________
b. She asked Tom,” Can you help me?” ___________________________ c. He asked me if I knew who killed the cat.
He asked ,”__________________________________?”
(3). 直接引语如果是特殊疑问句,变为间接引语时,疑问词不变,宾语从句用陈述语序。把下列句子变为间接引语或直接引语:
a. The teacher asked,” Why are all the windows open?”
______________________________________________.
b. “When will you find out the time?” she asked me.
______________________________________________.
c. “What’s the matter with you, Alice?” he asked.
_____________________________________
d. They asked me where my friends were.
____________________________________________
(4).直接引语如果是肯定型祈使句,变为间接引语时,谓语变为tell sb. to do 或ask sb. to do 等句式。把下列句子变为间接引语或直接引语:
a. “Make sure the door is closed,” she said to her little son.
____________________________________________________.
b. “Tell me the news, please.” Li Hui said to me.
____________________________________________________.
c. He asked me to take care of his pet dog.
“_______________________________,” he said to me.
(5).直接引语如果是否定型祈使句,变为间接引语时,谓语变为tell sb.not to do 或ask sb. not to do等。把下列句子变为间接引语或直接引语:a. “Don’t smoke in the room,” he said to me.
________________________________________________.
b. “Don’t shout at the old man,” I said to him.________________________
c. Our teacher told us not to talk in class.
“____________________________, “ our teacher said to us.
d. My mother told me ___ others when they are in trouble.
A. not to laugh at B. don’t laugh at C. not laugh at D. never laugh at
2. if 条件句 在一般将来时的句子里(指主句),时间状语从句、条件状语从句等的谓语动词用一般现在时代替将来时。当主句含有情态动词或主句为祈使句时,从句也用一般现在时。如:You must pay for it if you lose it.
附加疑问句
附加疑问句由“陈述句 + 附加疑问句”两部分构成。一般有两种形式:前肯后否或前否后肯。对附加疑问部分应注意以下几点: 1)主语只能用人称代词;2)附加疑问句的not必须与(be /助/情)缩写;3)附加疑问句的时态必须与陈述部分的时态一致。
Tom is a worker, isn’t Tom? (改错) _______ You can swim, can not you? ( 改错) ______
特别注意以下几种反意疑问句
1.陈述部分含否定意味的词如few,little,never,nothing,nobody,no,hardly,none,seldom等时,附加疑问句应使用肯定形式;但如果陈述句部分含有un-, in-, im-, dis-等否定前缀构成的派生词时,该陈述句部分仍做肯定处理,疑问部分用否定形式。
He hardly speaks English, does he? They are unhappy, aren’t they?
2. this/that作主语时,无论是否指人,疑问部分用it;these/those用they。
This is your brother, isn’t it? Those are books,_______________?
3.陈述部分的主语如果是one, 疑问部分主语用one或he。One can’t be always young, can one/ he?
4.陈述部分的主语是everything, something, nothing, anything时,附加疑问句的主语应用it;陈述部分的主语是everybody, somebody, nobody, everyone, no one时,附加疑问句的主语应用they或he。
Everything is ready, ___________? Everyone is here, ____________?
5.陈述部分是祈使句时,附加疑问句一般用:will you? 但注意:
Let’s…(包括听者在内), 附加疑问句一般用shall we? Let us/him/me …(不包括听者在内), 附加疑问句一般用will you? Let’s go for a walk, shall we? Let him come in, will you?
6.陈述部分是there be结构时,应用be there?结构来完成。 There’s little water, _________?
7..陈述部分含that引导的宾语从句时,疑问部分通常与主句一致。但当主句陈述部分是”I / We think (believe, suppose) +宾语从句”时,附加问句应与从句一致。I’m sure + 宾语从句也是如此
1).She said I did it, _________? 2)We don’t think you are right,________?
3) I’m sure you’ll help me, ____________?
8.如果陈述部分是I am… , 附加疑问部分为aren’t I? I am older than you, __________?
9.陈述部分含had better, would like时, 疑问部分分别用hadn’t…?和wouldn’t…? You’d better go out , _______________? You’d like to go there, ____________________?
10.陈述部分是感叹句,附加问句的人称代词应与主语一致,疑问部分用否定形式。 What a kind girl, isn’t she? What a fine day, ___________?
11.the+形容词表示一类人,其附加疑问句主语用复数代词。 The poor had no right to speak at that time, did they?
12. 由neither…nor,either… or , not only…but also , both…and , not…but,…or…, …and…等连接的并列主语,附加疑问部分用复数。
Neither you nor I am wrong, are we? Both Jack and Tom went there, didn’t they?
13.当陈述部分含有have to时,附加疑问部分的助动词应根据have 的变化,分别用don’t, doesn’t, didn’t。 He has to take your advice, doesn’t he?
14.当陈述部分的主语是从句、不定式、动名词或词组时,附加疑问部分的主语通常用it。 What he said at the meeting is very important, isn’t it? Swimming in rivers is a good sport, _____________?
15.当陈述部分含有wish时,附加疑问部分的助动词用may。I wish to use your computer, may I?
16. 当陈述部分的谓语是“used to+动词原形(过去常常干某事)”时,疑问部分用“didn’t+主语”或“usedn’t +主语”。 He used to live in London, didn’t he? / usedn’t he?
⑸ 英语共有几种语法
好像是9种。
⑹ 初二英语有哪些主要语法
过去式,双宾语,现在完成进行时,现在完成时,将来时,宾语从句,过去式,祈使句,
⑺ 八年级英语语法大全
英语语法从初中到高中,甚至是大学,都是一样的。不一样的是,某一项语专法的深度和宽度。现在跟你属列一下应掌握的语法。冠词、代词、形容词、非谓语动词、情态动词、定语从句、宾语从句、状语从句、倒装句、省略句和一些简单的对话(多看一些英语单句,培养语感,一开始感觉没啥作用,后来就发现作用很大)。自己买一本语法书看。虽然很枯燥,但在做选择题时很快。中考拼的是speed。还有啥不懂的问我!
⑻ 英语共有多少种语法啊
什么叫有多少种语法啊?
也许你是想问英语有多少个时态吧
一共16个时态,分回别是
1。一般答现在时
2。一般过去时
3.一般将来
4.一般过去将来时
5.现在进行时
6.过去进行时
7.将来进行时
8.过去将来进行时
9.现在完成时
10.过去完成时
11.将来完成时
12.过去将来完成时
13.现在完成进行时
14.过去完成进行时
15.将来完成进行时
16.过去将来完成进行时
⑼ 初二上学期英语,都包含哪些语法知识
初二第一学期UNIT ONE英语语法总结
1.how often...?
1)How often do you read English? I read English every day.
每隔一天=每两天 every other day = every two days
每三、四、五天 every three/four/five days
eg.The Olympic Games are held every four years.
2)How often do you go to the movies? I go to the movies once a month.
一月两次twice a month 一月三次 times a month 一月两三次two or three times a month
2.sometimes的位置
3.pretty 漂亮 (注意和quiet 相当 的区分)
4. 5种how的疑问句
5.Do you have the same lifestyle as them? (the same ... as 的用法)
No,mine is different from theirs. (be different from 的用法)
6.may be 与maybe
May be kate knows the answer.
=Kate may know the answer.
=Perhaps Kate knows the answer.
7.try tries tried trying
try to do something 尽力、设法做某事
try doing something 试着做某事
try one's best to do something 尽某人最大的努力去做某事
8.keep in good health = stay in good health
⑽ 初二英语语法有哪些
一般将来时/过去将来时(宾语从句中)
请求和建议
直接引语
间接引语
If条件句
现在完成时
反意疑问句
How
long\
far\often\soon
what's
the
matter.......