IT-作形式主语对比练习100题

IT 作形式主语对比练习100题1.(1)Its not right for you to believe people _ Tom and Mary.(2)Its not right for you to believe such people _ Tom and Mary. A. as B. like C. that D. which2.(1)_ is known to us all is that English is a useful language.(2)_ is known to us all, English is a useful language. (3)_ is known to us all that English is a useful language. A. It B. What C. That D. As3.(1)Was it on Oct. lst, 1949_ the PRC was founded? (2)Was it Oct.1st, 1949_ the PRC was founded? A. in which B. on that C. that D. when4.(1)It was eight oclock _ he left here.(2)It is at eight oclock _ he will leave here.(3)It is eight hours _he left here.(4)It will be eight hours _we meet again.A. when B. that C. before D. since5.(1)It is in this house _he was born. (2)It is the house _he was born. A. that B. which C.where D.in which 6.(1)It is kind _ you to do so.(2)It is easy _ you to do so.A. to B. for C. of D. with7.(1)_ is known to all that paper was first made in China.(2)_ is known to all, paper was first made in China. A. That B. Which C. As D. It8.(1)_ he was badly ill that the enemy set him free.(2)_ he was badly ill did the enemy set him free.A. Until B. Not until C. It was until D. It was not until9.(1)_ is a fact that English is being accepted as an international language. (2)_ is no need for us to discuss the problem again since it has already been settled. (3)_ is unnecessary for you to explain it to us any more. (4)_ is at least ten years since I left school. (5)Hurry up! _ is going to snow.A. This B. That C. It D. There 10.(1)_ is well-known that Antarctica is difficult to reach. (2)_ is well-known, Antarctica is difficult to reach. (3)_ is well-known is that Antarctica is difficult to reach. A. It B. Which C. What D. As11.(1)It is five years _ we saw each other. (2)It will be five years _ we see each other. (3)It was five years ago _ we saw each other. A. that B. since C. after D. before12.(1)It was not until his father died _ he came home.(2)It is not long _ his father died.(3)It was not long _ his father died.(4)It was not long _ he was born that his father died. A. before B. after C. since D. that 13.(1)_, China belongs to the developing countries. (2)_is that China belongs to the developing countries. (3) _China belongs to the developing countries. A. It is well known that B. As is known to us all C. as we all know D. Which we all know14. (1)It is a store, _ sells science book. (2)It is the very store _ sells books are sold. (3)It is the store _ science books are sold. (4)It is in the store _ science books are sold. A. who B. which C. that D. where15.(1)_ is no doubt that hell come. (2)_ is no use arguing with such a man. (3)_ is no knowing what may happen in one hundred years time. (4) _ is going to be an English composition contest this afternoon. A. This B. That C. It D. There 16.(1)It was not until I had read your letter _ the truth. (2)Not until I had read your letter _ the truth. A. did I learn B. I didnt learn C. that I learned D. that I had learned 17.(1)It was five oclock _ he came to see me. (2)It was at five oclock _ he came to see me. (3)It is five years _ I left school. (4)It was five years _ he joined the army. A. when B. that C. before D. since 18.(1)Its strange that _ little birds should have eaten _ many insects. (2)We have had _ little rain this year that _ many trees have died. A. so, so B. such C. so, such D. such, so19.(1)He arrived in Beijing in 1984, _ he was in his fifties.(2)He arrived in Beijing in 1984, and _he became famous. (3)It was in 1984 _ he arrived in Beijing.A. when B. where C. which D. there E. that20.(1)_ is known is that he has gone to college.(2)_ is known that he has gone to college. (3)_ is known, he has gone to college.(4)We all know_ he has gone to college.(5)He has gone to college, _ made us surprised.(6)_ surprised us most was _he has gone to college. A. It B. As C. Which D. What E. that21.(1)It was the museum _ you saw many treasures. (2)It was in the museum _you saw many treasures. (3)It was in the museum _you dropped in _you saw many treasures.A where B which C that D the one E.不填22.(1)_ from Beijing to Paris! (2)_ from Beijing to Paris?A. What a long way it is B. What a long way is it C How long it is D. How long is it 23.(1)It was eight oclock _ he left here. (2)It is at eight oclock _ he will leave here. (3)It is eight hours _ he left here. (4)It will be eight hours _ we meet again. A. when B. that C. before D. since24.(1) _ is known to us all is that the sun rises in the east. (2)_ is known to us all that the sun rises in the east.(3)_ is known to us all, the sun rises in the east. A. Which B. It C. As D. What25.(1)Its good _ you to take a walk after supper every day. (2)It was really stupid _ him to refuse the invitation. A. of B. to C. for D. at 26.(1)It is 10 years since we _ school. A. left B. have left C. had left D. leave (2)This is the first time I _ here. A. was B. am going C. have been D. came27.(1)The suggesting that John _ at once is very good. A. should start B. must start C. started D. starts (2)It is suggested that students at school _. A. would not smoke B. dont smoke C. not smoke D. smoking 28.(1)It was only with the help of the local guide _. (2)It was snowing heavily _. (3)Only with the help of the local guide _. A. was the mountain climber rescued B. then the mountain climber was rescued C. when the mountain climber was rescued D. that the mountain climber was rescued29.(1)It was eleven oclock _ they went out of the cinema.(2)It was at eleven oclock _ they went out of the cinema.A. which B. that C. when D. on which 30.(1)Was it on Nov. lst, _ the famous scientist was born?(2)Was it Nov. 1st, _the famous scientist was born? A. in which B. on that C. that D. when31.(1)It is about ten days _ he returned home.(2)It was ten days ago _ he left home.A. before B. that C. since D. when 32.(1)It was not until I had read your letter _ the truth. (2)Not until I had read your letter _ the truth. A. did I learn B. I didnt learn C. that I learned D. that I had learned 33.(1)She_ that Mike is sick in bed. (2)It_ that Mike is sick in bed.(3)_ is believing. (4)Mike_ to be sick in bed. A. saying B. says C. is said D. say 34.(1)Its necessary that you_ be present at the meeting. (2)His father_ often have a walk after supper.(3)I _ rather sleep than watch TV. (4)If it_ rain tomorrow, he would not come.(5)Youre late again. You _ have come five minutes earlier.A. should B. would C. ought D. could 35.(1)Its no use _ over spilt milk. (2)John is so naughty that he always makes his younger sister Mary _ . A. cryB. to cryC. cryingD. cried36.(1)How long is it _ we last spent the holiday in the country together? (2)Will it be long _ we spend the holiday in the country together? A. before B. until C. since D. that37.(1)It was not until 12 oclock _home. (2)Not until 12 oclock_ home. A. did he return B. he returned C. that he returned D. that did he return38.(1)Its high time you _ the bus. A. caught B. had caught C. should catch D. both A and C (2)It is the first time that I _ here. A. was B. have been C. came D. am coming (3)It was the first time that the boy _ a lie to his teacher. A. told B. has told C. had ever told D. had been told39.(1)-It was careless of you to have left the house without turning off the gas. -My god! _. (2)Mother told me to play with our little guest, _, though unwillingly. A. So I did B. So did IC. I didntD. So I was 40.(1) _ is well known to all, the earth is round. (2) _ is well known to all that the earth is round. A. That B. with C. It D. As41.(1)It was our first class_ Mr. White taught us_ we never forget.(2)It was our first class_ Mr. white taught us_ we never forget it. A. that; that B. that; and C. which; that D. that; which42.(1)It is high time (that ) we _ a film.(2)It is the first time (that)we _ the film.(3)It was for the first time that we _ the film. A. see B. saw C. have seen D. will see 43.(1)People_ that the guards were killed. (2)It_ that the guards were killed.(3)The guards _ to have been killed. (4)_ yourself means trying your best. A. was believed B. were believed C. believing D. believed 44.(1)-How long do you think it will be _ China sends a manned spaceship to the moon.-Perhaps two or three years.(2)-Why didnt you tell him about the meeting?-He rushed out of the room _ I could say a word.A. beforeB. untilC. whenD. after45.(1)-It so kind of you to give us so much help. - _. (2)-Could you be so kind as to give us a little bit of help? - _. A. A pleasure B. My pleasure C. With pleasure D. Why not46.(1)Was it _ she heard with her ears _ really made her frightened?(2)Was it _ she had been _ really made you all surprised?A. what, that B. it, that C. where, that D. what, /47.(1)It is hoped that you _ there on time. (2)It is advised that you _ there on time. A. arrive B. should arrive C. will arrive D. both A and B48.(1)It is 3 years _ he joined the army. (2)It will be 3 years _ we meet again. (3)Tom told me that it was 3 years _ he had left school. A. before B. after C. since D. when49.(1)-Its three years_ I smoked. -Its good for your health.(2)-Its for three years _ Ive smoked. -Its bad for your health. A. for B. since C. before D. that50.(1)It is a pity that you _ swim. A. couldnt B. cant C. shouldnt D. are able to (2)It was a pity that you _ so careless. A. could be B. couldnt C. should be D. shouldnt be51.(1) _ made you so happy at the party?(2) _ you were taken good care of on the farm?A. What is it thatB. When is it thatC. What was it thatD. When was it that52.(1)Its very kind _ you to help us. (2)Its very important _ us to keep the balance of nature. A. for B. of C. to D. with53.(1)It is strange that he _ the work in 3 days. (2)It is possible that he _ the work in 3 days. A. can finishB. is finishingC. should finish D. finish54.(1)It is(high) time that we _ to school. (2)It is the second time that we _ to Beijing. A. go B. went C. have beenD. have gone55.(1)_ doesnt matter much whether hell come to the party. (2)I feel _ an honour to be invited to speak here. A. this（This）B. it（It）C. that（That）D. what（What）56. (1)- _ was it_they discovered the entrance to the underground palace? -Totally by chance. (2)- _ was it _they discovered at the entrance to the underground palace? - A helmet.A. What, that B. How, that C. When, how D. Where, that57.(1)It hasnt been decided _will be sent to work there (2)It is quite clear _he has read the book. (3)It doesnt matter _ he says. A. what B. who C. that D. whether58.(1)_is known to everybody, the moon travels round the earth once every month.(2) _is known to everybody that the moon travels round the earth once every month. (3)_is known to everybody is that the moon travels round the earth once every month. A. It B. As C. That D. What59.(1)It was_ the old clock the old man spent the whole morning at home.(2)It was three hours that the old man spent _ the old clock.A. repair B. repairing C. to repair D. in repair60.(1)Was it the house _ Abraham Lincoln was born? (2)Was it in the house _ Abraham Lincoln was born? A. that B. where C. which D. both A and B61.(1)Its no good _ such a thing. (2)Its of no importance _ such a thing. A. do B. to do C. doing D. done62.(1)It hasnt been made clear _the conference is to take place. (2)It did not matter much _he lived. (3)It makes little difference _ we go or stay. (4)It was clear _he had asked for a conference. A. where B. why C. when D. whether63.(1)Its good _ you to send me a nice present. (2)Its good _ you to do eye exercises every day. A. for B. of C. with D. to64.(1)-Was it there _ you were away to see your friend off? -Im not sure. But when I got back, it was gone. (2)-Was it there _ you put your bike to see your friend off? -Im not sure. But when I got back, it was gone. A. that B. which C. while D. where65.(1)Youd better _ the small child across the street. (2)Its better _ the small child across the street. A. to guide B. guide C. to guiding D. to be guided66.(1)I have nothing to confess. _ you want me to say? (2)I hope you dont mind, but _ you were born? A. What is it that B. What it is what C. How is it that D. Where is it that67.(1)It is in the hall_ a meeting was held. (2)This is the hall_ a meeting was held. A. there B. where C. which D. that68.(1)It was_ that first found out the secret. (2)It was_ that I first found in the street. A. him B. he C. himself D. his 69.(1)It was _ that I got back home yesterday.(2)It was _ when I got here yesterday. A. at midnight B. midnight C. on midnight D. in midnight70.(1)Who is it up _ decide whether to go or not? (2)Who did you go _ help the people in trouble? A. to to B. for for C. to for D. with to 71.(1)_ is well-known that great changes have taken place in China recently. (2) _ is well-known, great changes have taken place in China recently. A. That B. As C. Which D. It72.(1)It is on Sunday afternoon_ I met Linda. (2)It is the farm_ Mr. Wang lives. (3)Is it Linda_ speaking to a foreigner? A. that B. when C. why D. where73.(1)Its very kind _ you to help me with my studies.(2)Our neighbour is always kind_ us.A. on B. of C. for D. to 74.(1)It is _ for me to talk to her. (2)Im_ that you have decided to come.(3)There is a_ result to our talks. A. pleasing B. pleased C. pleasant D. A and C75.(1)It is suggested that students at school _. A. would not smoke B. dont smoke C. not smoke D. smoking(2)They gave us a suggestion that we _ English harder than before. A. studied B. should study C. would study D. studies76.(1)_ makes me feel sad seeing you livin