it is said that 的句型变化练习

在含有状语从句的复合句中若从句的主句是it或与主句的 主语相同，且在谓语中含有be时，常省略从句的主语和 be。
一、 在含有状语从句的复合句中 1.when， while，as, once，whenever引导的时间状语从句；
2.if，unless引导的条件状语从句； 3.though， although，even if ，even though引导的让步状语从句；
-----Are you a sailor? ----- No, but I _______
A.am not B. used to C. used to be D. used to being
-----Why didn’t you take part in my birthday party yesterday? -----I_________, but I had an unexpected guest. A. would like to B. would like to have C. should D. wouldn’t like to ---What do you think made Mary so upset? ---________her new bicycle. A. As she lost B. Lost C. Losing D. Because of losing
一、yet通常用于否定句或疑问句中，译为"还，尚，仍， 已经"等。常常放于句末，否定词之后。 1．yet大多用于完成时态中。例句： （1）Have you heard from him yet？你收到他的信了 吗？ （2）Has he come yet？No，not yet．他已经来了吗？ 不，还没有。 2.Yet 做连词，尽管，然而。 He has a good job, and yet he never seems to have any money.
A good storyteller must be able to hold his listeners’curiosity ________ he reaches the end of the story. A. when B. unless C. after D. until It was not ________ she took off her dark glasses ________ I realized she was a famous film star. A. until; when B. when; that C. until; that D. when; then Not until all the fish died in the river ________ how serious the pollution was. A. did the villagers realize B. the villagers realized C. the villagers did realize D. didn't the villagers realize
Generally speaking, ________ according to the directions, the drug has no side effect. A. when taking B. when taken C. when to take D. when to be taken Unless ________ to speak, you should remain silent at the conference. A.invited B. inviting C being invited D. having invited When ________ , the museum will be open to the public next year. A. completed B. completing C. being completed D. to be completed
If you go to Britain, you’ll find the streets there less beautiful than commonly _______. A. Supposing B. supposed C. to suppose D. suppose I’m sure all will go well as________. A. being planned B. planned C. having planned D. planning While walking alone in the street, my name was called. While walking alone in the street, name called. I heard my
4.as though，as if，as引导的方式状语从句；
5. wherever引导的地点状语从句
The man we followed suddenly stopped and looked as if ________ whether he was going in the right direction. A. seeing B. having seen C. to have seen D. to see When first ________ to the market, these products enjoyed great success. A. introducing B. introduced C. introduce D. being introduced It shames me to say it, but I told a lie when ________ at the meeting by my boss. A. questioning B. having questioned C. questioned D. to be questioned
_____ with the right knowledge can give first aid. _____ has the right knowledge can give first aid. As we all know, every minute _____ full use of ____ our lessons will do good to us students. A. which makes; studying B. Which is made; to study C. that is made; to study D. that is made; studying As we all know, every minute, _____ full use of ____ our lessons. will do good to us A. which makes; studying B. when made; to study C. which is made; study D. that is made; studying
He is such an honest boy ______ I like. He is such an honest boy ______ I like him. His plan was such a good one ______ we all agreed to accept it. A. as B. that C. so D. and -- Did Peter fix the computer himself? -- He ________, because he doesn't know much about computers. A.has it fixed B. had had fixed it C. had it fixed D. fixed it The computer I _________ broke down again.
It’s much easier to make friends______ you have similar interests. unless B. when C. even though D. so that There’s no way of knowing why one man makes an important discovery ______another man, also intelligent, fails. A. Since B: if C. as D. while
The door_______ open , no matter how hard she pushed. A. shouldn’t B. couldn't C. wouldn't D. mightn't Since nobody gave him any help, he_______ have done the research on his own. A.can B. must C. would D. need He _______ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it. A. wouldn’t B. shouldn’t C. couldn’t D. mustn’t I have heard a lot of good things about you ___ I came back from abroad. A.since B. until C. before D. when
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One of the sides of the board should be painted yellow, and________. A. the other is white B. another white C. the other white D. another is white --- Would you like some wine? --- Yes, just ________. A. little B. very little C. a little D. a few