摘要: 情态动词的意义 must“必须 , can/could“能.会 , may/might “可以 , should“应该 , would“愿.要 , have to“不得不 , need“需要 (四)情态动词的基本用法 1)表示人或物本身所具有的能力.意为“能.能够.会 : Two eyes can see more than one. 两只眼比一只眼看得清. 2)表示可能 He can’t have enough money for a new car. 他不可能有足够的钱买新车. 3)表示允许: Can I have a look at your new pen? 我可以看一看你的新钢笔吗? He asked whether he could take the book out of the reading-room.他问他可不可以把书带出阅览室. 4)表示对现在动作或状态的猜测.主要用于否定句和疑问句中或感叹句中: He can’t be over sixty. 他不可能超过六十岁. 5)could表示比can更委婉客气的提出问题或陈述看法.指的是现在时间. Can you lend me a hand? 帮我一把好吗?

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阅读下面短文,用括号内所给动词的适当形式填空。(必要时可加情态动词或助动词)

  Henry and Charlie were good friends.They worked in a shop.These days Henry did not come to work, but Charlie did not know why.

  The shopkeeper said there were too many workers in the shop, so he(1)________(send)some away.Charlie heard of it and wanted to tell his friend Henry about the shopkeeper's plan.He went to him after supper.When he got there, he(2)________(meet)Henry's wife at the door.

  “Henry(3)________(go)out, hasn't he?”asked Charlie.

  “No, he(4)________(be)in bed,”answered the woman.

  “What's wrong with him?”

  “He(5)________(not feel)well,”said his wife.

  “What on earth is happening?”

  “He(6)________(not fall)asleep the whole night.”

  Charlie went into the bedroom and saw his friend(7)________(lie)in bed, crying loudly in pain.

  “Have you seen a doctor, Henry?”asked Charlie.

  “Not yet,”said Henry,“My wife bought some medicine for me and I took some just now.”

  “You'd better(8)________(go)to see a doctor.They will help you, I think.”

  “Sorry, I(9)________(not agree)with you,”said Henry,“Last year I had a terrible stomachache, the doctor cut off part of my stomach.Last week I got a bad toothache and the dentist had my tooth(10)________(pull).God knows what the doctor will do with my head this time!”

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