助动词后面的动词用什么形式

be动词，情态动词，助动词do/does的用法区别及练习

1. 由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。变否定句时直接在am，is，are后面加not即可。例如： 肯定句:He is a student.

一般疑问句: Is he a student? 否定句: He is not a student.

画线提问: 对he提问: Who is a student?

对 a student 提问: What is he? or What does he do?

2. 由情态动词can, may, should等构成的句子: 变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可. 例如: 肯定句: She can swim.

一般疑问句: Can she swim? 否定句: She can not swim.

画线提问: 对she提问: Who can swim? 对swim提问: What can she do?

3. 由行为动词构成的句子: 需要加助词do或does. 变一般疑问句时把do/does放在句子前面

be动词，情态动词，助动词do/does的用法区别及练习

1. 由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。变否定句时直接在am，is，are后面加not即可。例如： 肯定句:He is a student.

一般疑问句: Is he a student? 否定句: He is not a student.

画线提问: 对he提问: Who is a student?

对 a student 提问: What is he? or What does he do?

2. 由情态动词can, may, should等构成的句子: 变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可. 例如: 肯定句: She can swim.

一般疑问句: Can she swim? 否定句: She can not swim.

画线提问: 对she提问: Who can swim? 对swim提问: What can she do?

3. 由行为动词构成的句子: 需要加助词do或does. 变一般疑问句时把do/does放在句子前面

一个句子中出现若干个动词时后面的动词的形式问题

概述：共有三种情况：

1）一般情况下，后面的动词都用不定式形式； 2）有少数动词后面的动词必须要用动名词形式；

3）另外有为数更少的动词后面既可以用不定式也可用动名词。

绝大多数情况属第一种，不必记。第二、三种属少数，需要记忆（结合例句），分述如下： 1. 其后动词必须用动名词的动词有：acknowledge, admit, anticipate, appreciate, avoid, celebrate,

consider, contemplate, defer, delay, deny, detest, dislike, dread, enjoy, entail, escape, excuse, fancy (想，想象), finish, forgive, imagine, involve, keep, loathe, mention, mind, miss, pardon, postpone, practise, prevent, propose, quit, recall, recollect, report, resent, resist, risk, save (=prevent

第17讲 助动词 （一）

概述

英语动词，按其在构成动词词组所起的作用，分为主动词和助动词两大类。助动词又分为基本助动词、情态助动词和半助动词。

英语情态助动词共有14个： 现在时形式 过去时形式 can could may might will would shall should must --- need --- dare Dared --- ought to --- used to

17.1 情态意义表示法 1、表“能力”和“可能”

A. 表示“能力”（ability）,可用can, could, be able to. Can 既能表示现在的能力，也能表示将来的能力。 Look！ I can do it!

I can’t do it now, but I can do it later.

Can既可指具体做某件事的能力，也可泛指一般的能力。 I can climb this cliff. He can drive a car.

表“能力”，can和be able to 很多情况下可以交替使用。 As I have got enough money, I can/ am able to help her. 指将来的能力

第17讲 助动词 （一）

概述

英语动词，按其在构成动词词组所起的作用，分为主动词和助动词两大类。助动词又分为基本助动词、情态助动词和半助动词。

英语情态助动词共有14个： 现在时形式 过去时形式 can could may might will would shall should must --- need --- dare Dared --- ought to --- used to

17.1 情态意义表示法 1、表“能力”和“可能”

A. 表示“能力”（ability）,可用can, could, be able to. Can 既能表示现在的能力，也能表示将来的能力。 Look！ I can do it!

I can’t do it now, but I can do it later.

Can既可指具体做某件事的能力，也可泛指一般的能力。 I can climb this cliff. He can drive a car.

表“能力”，can和be able to 很多情况下可以交替使用。 As I have got enough money, I can/ am able to help her. 指将来的能力

（Be动词）

一、在下面的句子中填上恰当be动词。 I ______ a girl. My name _______ Mary. I ______ in Class 2. I ______ 12 years old. Here ______ my family photo.

Look! These ______ my parents and those _______ my grandparents. This boy ______ my brother. He ________ 15 years old now.

That ______ my cat, Mimi. It ______ very lovely. 二、在下面的题目中填上恰当的Be动词。 1. I ________from China. 2. She _______ a student.

3. Jane and Tom _________my friends. 4. My parents _______very busy every day. 5. I _______ at school. 6. He ________ at school. 7. We __

情态动词是一种本身有一定的词义,但要与普通动词一起使用，给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。 情态动词后面加动词原形。 分类：

情态动词有四类：

①只做情态动词：must,can(could),may(might),ought to ②可做情态动词又可做实义动词：need,dare

③可做情态动词又可做助动词：shall(should),will(would) ④具有情态动词特征：have(had) to,used to 位置:

情态动词在句中放在谓语动词之前, 谓语动词前若有助动词,则在助动词之前,疑问句中, 情态动词则在主语之前。 I can see you. Come here. 我能看见你，过来吧。 He must have been away. 他一定走了。

What can I do for you? 我能帮你吗？

How dare you treat us like that！ 你怎能那样对待我们！ 特点:

情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 \。 个别情态

小学英语语法助动词do、Be动词、情态动词的用法练习

变一般疑问句：

1. I want to pass the test?

2. He studied German.

3. She likes swim.

4. They do homework everyday.

变否定句

1. I want to go to the concert today.

2. He likes learning English.

3. Many students heard the song.

4. Open your books.

作出肯定回答与否定回答。

1. ---- Do you like Beijing?

2. Does he go to school by bike?

3. Did you read the book?

1

小学英语语法助动词do、Be动词、情态动词的用法练习

(一) 用适当的情态动词填空。

1. Must I stand up? No, you ________.

2. ________ I speak something? Yes, you ________.

3. ________ I leave the park now? No, you _____

中考英语情态动词、助动词、系动词专项讲解

中考英语情态动词、助动词、系动词专项讲解

语法精讲

1.can 和 could

2.may 和 might

3.need, must 和 have to

情态动词 4. should 和 ought to

5.shall, will 和 would

6.had better

1.can 和 could

① can 表示能力，意为“能够，可以”，could用于过去时，

例如 He can finish his homework al one. 他可以单独完成作业的。

He couldn’ t cook when he was 18 years old他. 18岁时还不会做饭。

② can 表示推测，意为“可能”，在否定句中表示否定的猜测，意为“不可能”，could用于对过去的猜测，can’t be不可能

例如： He could be cooking at this time yesterday.他昨天这个时候有可能正在做饭。

He can ’ t be here causebe he has gone to American. 他不可能会在这里，因为他已经去

美国了。

③ can 表示请求语气，could 的语气更委婉，

例如：

2014牛津7A Be动词&助动词练习题.doc

Be和助动词复习题

用合适的be动词填空：

1. There ________ (be) many monkeys in the mountain.

2. There_________(be)a beautiful garden in our school.

3. There _________(be)some water in the glass.

4. There __________(be)some bread on the table.

5. _______(be)Tom ___________(read) a book now?

6. Where ________(be) your friends yesterday?

7. When _________ (do) your father usually _________ (go) to work?

8. How old __________ (be0 you last year?

9. Which dog ________ (be) yours?

10.Ten and two ________ (be) twelve

选择填空：

1. My brother