摘要：2．表示能力的情态动词 can可表示某人具有某种特定技巧.能力或通过感官意识到某物. could表示某人过去具有某种技巧.能力或意识. -Some people can ski better than others. 有些人滑雪比其他人好. Everyone in the village could hear her voice. 村子里每个人都能听见她的声音. be able to/be unable to不仅有现在时.过去时.还可有将来时.现在完成时.不定式.动词-ing形式等.例如: Our baby will be able to walk in a few weeks. 我们的婴儿几周后就能走路了. Since his accident he hasn’t been able to leave the house. 自从事故后.他就不能离开房子了. 3. 表示肯定推测的情态动词 must用于推测时.表示“一定 .“肯定 .表明说话人认为的可能性很大.一般只用于肯定陈述句中.否定形式用can’t.表示“一定不 “肯定不 如: Oh, you must be Sylvia’s husband. 你一定是西尔薇亚的丈夫. 语法总复习2- - -被动语态 被动语态表示主语是谓语动作的承受者.如:A new swimming pool will be built on our school. 被动语态的形式是由“助动词be+动词的过去分词 构成.助动词be随着主语的人称.数.时态和语气的不同而变化.各种时态的被动语态形式如下:
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用适当的情态动词填空。
1. There being no bus that night,we ______ go home on foot.
2. You _____ worry about him,he is not a child.
3. You _____ opened the letter, it was written for me.
4. — Must I finish my homework today?
— No,you____.
5. You _____ play football on the road because it is dangerous.
6. The windows _____ cleaning.
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2. You _____ worry about him,he is not a child.
3. You _____ opened the letter, it was written for me.
4. — Must I finish my homework today?
— No,you____.
5. You _____ play football on the road because it is dangerous.
6. The windows _____ cleaning.
用适当的情态动词填空。
1. _____ you like to share a room with
your sister?
2. Mum said to her baby" You _______ not eat so many candies. "
3. — You have so much work to do. _____.
— you like me to help you?
— No, thanks.
4. — ______ I finish the job tomorrow?
— No, you needn't.
5. — Could I use your computer?
— Yes, you _____.
6. — Need I go there with you?
— Yes, you _____.
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your sister?
2. Mum said to her baby" You _______ not eat so many candies. "
3. — You have so much work to do. _____.
— you like me to help you?
— No, thanks.
4. — ______ I finish the job tomorrow?
— No, you needn't.
5. — Could I use your computer?
— Yes, you _____.
6. — Need I go there with you?
— Yes, you _____.
| 从下面方框中选择适当的情态动词填空。 | |
am away? 2. — ___ I have a walk with you, Mum? — No, you mustn't. 3. All the students _____ obey the school rules. 4. We _____ help others when they are in trouble. 5. He _____ be tired. He has just begun to work. 6. — ______ he use your bike? — Certainly. Here is the key. |