Question

七年级英语下册第七单元知识点

七年级英语下册第七单元知识点

Answer 1

七年级英语下册语法总结
一、一般现在时
1. 构成：主语+动词+其他
2. 标志词：always, usually, often, sometimes, never, 等频率副词。 3. 否定句：1)当动词是 be, can, may, must, should等在其后加not
e.g. I can’t play football.
2)当是实义动词时加助动词don’t/doesn’t后跟动词原形 e.g. I don’t like football. She doesn’t like football.
4. 疑问句：1)当动词是 be, can, may, must, should等将其提前
e.g. Can you swim?
2)当是实义动词时将助动词do/does 放在前面，后跟主语和动词原形。 e.g. Does she like football?
5. 特殊疑问句：特殊疑问词+一般疑问句 e.g When does she usually get up in the morning? 二、现在进行时
1. 构成：主语+be+doing+其他 2. 动词→动词-ing变化规律：
1）一般情况下直接加-ing, eg. Working
2）以不发音e结尾的去e加-ing, eg. Taking
3）以辅音字母+元音字母+辅音字母结尾的重读闭音节，双写末尾辅音字母加-ing, eg. Stopping 4）特殊变化, lie—lying
3. 标志词：look, listen, now, at the moment, it’s…o’clock… 4. 否定句：be动词后加not
e.g. She is not listening to music. 5. 疑问句：将be动词提前
e.g . Is she listening to music?
6. 特殊疑问句：特殊疑问词+一般疑问句 e.g What is she doing now? 三、将来时
1. 构成：主语+be going to+动词原形 主语＋will＋动词原形
2. 标志词：tomorrow, next day/month/year等表示将来的时间 3. 否定句：be动词后加not；will后加not
e.g. He is not going to have a piano lesson this weekend. He will not have a piano lesson this weekend. 4. 疑问句：将be动词提前；将will提前
e.g. Is he going to have a piano lesson this weekend? Will he going to have a piano lesson this weekend?
5. 特殊疑问句：特殊疑问词+一般疑问句 What are you going to do tomorrow?\ What will you do tomorrow? 四、过去时
1. 构成：主语+动词过去时+其他
2. 标志词：yesterday, just now, …ago, this morning, when I was young,last…等 3. 动词→动词过去式变化规律：
1）一般动词结尾加-ed, e.g. Walk--walked 2）以字母e结尾的动词加- d, e.g. Live--lived
3）以辅音字母加y结尾的变y为i加-ed, e.g. Hurry—hurried
4）以辅音字母+元音字母+辅音字母结尾的重读闭音节，双写末尾辅音字母加-ed, eg. Stop –stopped 特殊变化详见课本P172
4. 否定句：1）动词be过去式后直接加not
e.g. I was not in Chengdu last year.
2) 当是实义动词时，加助动词didn’t后跟动词原形
5．There will be a basketball match tomorrow, won’t
there?
★ 值得注意的是有时英语的谓语动词并不用否定式（即没加上not），而是用上了―never, little, few, hardly, nothing, nobody‖等表否定意义的词，后半部分应用肯定疑问式。 ① You have never been to Beijing, have you? ② Mr. Fat has few friends here, does he? ③ There is little milk in the bottle, is there? ④ He could do nothing, could he? 练习：
完成下列反意疑问句：
1. Mary listened to pop music,______ ______? 2. He has never been to Shanghai_____ _____? 3.He has few friends at school,______ _______? 4.The music sounds beautiful,_______ _______? 5.You can’t dance to jazz,______ _____? 6.They weren’t at the concert,______ _______? 7.Let’s stop writing,_______ _______? 8.Don’t be late,_______ ________? 五、动词不定式
动词不定式是初中英语的语法重点之一，也是每年中考英语试题的考点之一。它是动词的一种非谓语形式，没有人称和数的变化，不能单独作句子的谓语。其构成形式为＂to+动词原形＂，to为动词不定式的符号，本身无意义。动词不定式具有两大特点：
1.具有动词的特点，因此，后面可以跟表语、宾语或状语，构成动词不定式短语。
2.具有名词、形容词或副词的特点，可以在句子中用作主语、宾语、宾语补足语、状语、定语、表语及同位语等。 （一）、动词不定式作主语
( ) 1. It's hard for us ______English well.
A. learn B. learns C. to learn D. learning
( )2. It's very nice _________ you to get me two tickets _________ the World Cup. A. for， of B. of， for
C. to， for D. of， to
［简析］动词不定式作主语时，可以直接放在谓语动词前面的主语位置，也可以用先行词it作形式主语，而将真正的主语(不定式)置于后面。常见的句式有：(1)It is +形容词(of sb)to do sth.(2)It is +形容词(for sb)to do sth.(3)It takes sb some time to do sth.(4)It is +名词短语(for sb)to do sth.
句式(1)中常用nice， kind， clever， good， right， wrong， foolish， careless等形容词，与介词of搭配，这些形容词常表述不定式逻辑主语的属性或性质；句式(2)中常用hard， difficult， easy， important等形容词，与介词for搭配，表示不定式表示的动作、行为的性质。 （二）、动词不定式作宾语 ( )1. He wants ______ some vegetables.
A. buy B. buying C. to buy D. buys
( )2. Don't forget ______ your homework with you when you come to school.
A. to bring B. bringing C. to take D. taking ( )3. He found it very difficult ______.
A. sleeping B. sleeps C. slept D. to fall asleep
［简析］在want， like， agree， hope， wish， learn， begin， start， decide， hate， choose， forget， remember等动词后面，可以接不定式作宾语。如果其后接形容词补足语时，则可以用it作形式宾语，而把作真正宾语的不定式放到后面。
（三）、动词不定式作宾语补足语
( )1. Robert often asks us ______ his Chinese, so his Chinese is much better than before.
A. help him B. to help him with
B. C. to help with D. helps him with

( )2. Mr Li often teaches his Japanese friends ______ Chinese food.
A. cook B. cooks C. to cook D. cooked
［简析］不定式可以用作宾语补足语。后面可以接不定式作宾语补足语的动词有：ask， teach， expect， tell， allow 等。
（四）、动词不定式作状语 ( )1. She went ______ her teacher.
A. to see B. looks C. saw D. seeing
( )2. Meimei likes English very much. She does her best ______ English well.
A. learn B. learning C. to learn D. learns
［简析］go， come， try， do / try one's best等动词或短语动词作谓语时，其后常常可以接不定式作目的状语。 ( )3. I'm sorry ______ that. A. hears B. hearing C. hear D. to hear ( )4. I'm sorry ______ you.
A. trouble B. to trouble C. troubling D. troubled
( )5. My mother was very glad ______ her old friend.
A. to meet B. meet C. met D. meets
［简析］＂be +形容词+ to do sth＂结构中的不定式作状语，常表示原因或方式。 （五）、动词不定式作定语 ( )1. Would you like something ______? A. drink B. drinking C. to drink D. drinks ( )2. I have a lot of homework ______. A. do B. doing C. did D. to do ( )3. He is not an easy man ______. A. get on B. to get on
C. get on with D. to get on with
［简析］不定式作定语时，常放在被修饰的词语之后，与被修饰的词语为逻辑上的主谓关系或动宾关系；如果不定式的动词是不及物动词，其后要加上必要的介词或副词，构成的短语动词相当于及物动词。 （六）、不带to的动词不定式 ( )1. We saw him ______ the building and go upstairs. A. to enter B. enter C. entering D. entered
( )2. So much work usually makes them ______ very tired. A. to feel B. feels C. feeling D. feel
( )3. Your father is sleeping. You'd better______.
A. not wake up him B. not to wake up him C. not wake him up D. not to wake him up
［简析］1.在see， watch， hear， feel等感官动词和make， have， let等使役动词后面作宾语补足语的不定式不带to.
2.在＂had better＂后面接不带to的不定式。 （七）、动词不定式的否定形式
( )1. The old man told the child ______ noisy.
A. not be B. not to be C. to not be D. be not
( )2. There is going to ______ an important meeting tomorrow. Please try ______ late. A. have， not to be B. have， not be
C. be， not to be D. be， not be
［简析］动词不定式的否定形式通常是在不定式符号to的前面加上not，如果是不带to的不定式就直接在动词原形前面加上not.
（八）、某些动词后面接不定式和接动词-ing形式的区别 ( )1. Please stop ______ a rest if you feel tired. A. to have B. having C. have D. has
( )2. ——Why didn't you buy some bread on your way home?

——Sorry, I forgot ______ some money with me. A. take B. taking C. to take D. took ( )3. ——Let's have a rest, shall we?
——Not now, I can't stop ______ the letters.
A. write B. to write C. writing D. and write
4. Jim was badly hurt, so he had to stop ______ (walk). 六、双宾语用法要点
此结构由主语+及物谓语动词+间接宾语（人）+直接宾语（事物）组成。如， He brings me cookies every day.
She made me a beautiful dress. 但若要先说出直接宾语（事物），后说间接宾语（人），则要借助于介词to或for,如， He brings cookies to me every day. She made a beautiful dress for me.
用to侧重指动作的方向，表示朝着，向着，对着某人。 用for侧重指动作的受益者，表示为了某人，替某人。
常跟双宾语的动词有：
（需借助to的）bring, give, lend, hand, offer, pass, pay, return, send, show, teach,等。
（需借助for 的）buy, call, cook, choose, draw, get, make, sing,等

Answer 2

I. 1. mistake … for 2. ask forhelp 3. wake up 4. fly over 5. walktowards
6. take the place of
II. 1-4 CABC 5-7 ABC
III. 1. wake 2. towards 3. balloons 4. plates 5. information
IV. 1. woke 2. best 3. was watching 4. flew 5. planets
V. 1. take the place of 2. dosome shopping 3. instead of 4. ask, for help 5.mistake, for