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it用法练习60题

---------------------------------------------------------------最新资料推荐------------------------------------------------------it用法练习60题it用法一.单项选择(32分) 1.It took us over an hour along the street. it用法一.单项选择(32分) 1.It took us overan hour along the street. A.walk B.to walk C.walkingD.walked 2.I think it a great honour to visit your country.A.walkB.to walkC.walkingD.walked 2.I think it a great honour to visit your country. A.to invite B.inviting C.having invitedD.to be invited 3.Many people now make a rule to buy cardsfor their A.to invite B.inviting C.having invited D.to beinvited 3.Many people now make a rule to buy cards fortheir friends before Christmas. A.themselves B.itC.thatD.this 4. is very clear to everyone that he’sround and friends before Christmas. A.themselves B.itC.thatD.this 4. is very clear to everyone that he’sround and tall like a tree. A.This B.What C.That D.It5.In the United States, bus travel doesn’t cost much as train travel, ? tall like a tree. A.This B.What C.ThatD.It 5.In the United States, bus travel doesn’t cost much astrain travel, ? A.don’t they B.does it C.do theyD.doesn’t it 6.Someone is at the door, who is ? A.don’tthey B.does it C.do they D.doesn’t it 6.Someone is at the1 / 13door, who is ? A.this B.that C.it D.he 7.It israining cats and dogs. . A.this B.that C.itD.he 7.It is raining cats and dogs. . A.So it is B.So is it C.Neither it is D.Neither is it 8.My home isin that tall building over there. ? A.So it is B.So is it C.Neither it is D.Neither is it 8.My home isin that tall building over there. ? A.Can it see B.Can see it C.Can be seen it D.Can it be seen 9. raining hard for 3 hours without stopping. A.Can it see B.Can see it C.Can be seen it D.Can it be seen 9. raining hard for 3 hours without stopping. A.It is B.It wasC.It has beenD.It had been 10.Has the boy got his bicyclenow? Yes, the police gave . A.It is B.It was C.Ithas been D.It had been 10.Has the boy got his bicycle now?Yes, the police gave . A.him to him B.it to it C.itto him D.him to it 11.Boy, A.him to him B.it toit C.it to him D.him to it 11.Boy, It is, lookslike spring i s coming soon. Yeh, It’ll just be a few more weeks.A.it’s really a nice day today, isn’t it?B.what knid ofweather are we going to have today? C.do you think it is goingto rain today? D.what’ it like outside today? 12.It isimportant their offer. It is, looks like spring is---------------------------------------------------------------最新资料推荐------------------------------------------------------coming soon. Yeh, It’ll just be a few more weeks. A.it’sreally a nice day today, isn’t it? B.what knid of weather arewe going to have today? C.do you think it is going to rain today?D.what’ it like outside today? 12.It is im portant their offer. A.reject B.rejects C.to rejectD.rejecting 13.Has been decided when we are to hold theA.rejectB.rejectsC.to rejectD.rejecting 13.Has been decided when we are to hold the sports-meeting? A.thatB.thisC.itD.what 14.Did Li Lei call me while I was out?Yes, it was that called you. sports-meeting? A.thatB.thisC.itD.what 14.Did Li Lei call me while I was out?Yes, it was that called you. A.him B.he C.whoD.whom 15.Nothing is wrong with the radio ? A.himB.heC.whoD.whom 15.Nothing is wrong with theradio ? A.isn’t it B.is that C.is it D.isn’tthat 16.I don’t know makes her afraid of having herA.isn’t itB.is thatC.is itD.isn’t that 16.Idon’t know makes her afraid of having her business discussed. A.what it is about Mary that B.that is it abut Marywhat C.what is it about Mary that D.that is about Mary what17.Which sentence is wrong? A.I felt it impossible for him to3 / 13take the exam. B.I found it impossible that he might take theexam. C.I thought that he might not take the exam. D.In myopinion he might take the exam. 18.I don’t think difficult for a Chinese student business discussed. A.what itis about Mary that B.that is it abut Mary what C.what is it aboutMary that D.that is about Mary what 17.Which sentence is wrong?A.I felt it impossible for him to take the exam.B.I found it impossible that he might take the exam.C.I thought that hemight not take the exam. D.In my opinion he might take the exam.18.I don’t think difficult for a Chinese student tomaster a foreign language within five years A.that B.itC.tooD.very 19.It’s the second time you late thisweek. to master a foreign language within five years A.thatB.itC.tooD.very 19.It’s the second time you late this week. A.arrive B.arrived C.have arrivedD.had arrived 20.It will not be we meet again. A.arriveB.arrivedC.have arrivedD.had arrived 20.It will not be we meet again. A.long before B.before long C.soon afterD.shortly after 21.It’s demanded that we there on foot.C.soon afterD.shortly after 21.It’s demanded that we there on foot. A.not to go B.don’t go C.not goD.won’t go 22.It is often used to a baby. A.not to go---------------------------------------------------------------最新资料推荐------------------------------------------------------B.don’t goC.not goD.won’t go 22.It is often used toa baby. A.mean to B.stick to C.point to D.refer to23.It was not until 1936 basketball became a A.mean toB.stick toC.point toD.refer to 23.It was not until 1936 basketball became a regular part of the Olympic Games. A.thatB.whenC.whichD.then 24. you met the Englishman? regular part of the Olympic Games. A.that B.when C.whichD.then 24. you met the Englishman? A.Where it was thatB.Who it was thatC.Where was it thatD.Where was that 25. that she has gone to the United States? A.Where it was thatB.Who it was thatC.Where was it thatD.Where was that 25. that she has gone to the United States? A.Was it true B.Isit true C.It is true D.It was true 26. certain thathis invention will lead to the A.Was it true B.Is it trueC.It is trueD.It was true 26. certain that his invention will lead to the development of production. A.That’sB.This isC.It’sD.What’s 27. in 1914 the First World War broke out? development of production.A.That’sB.This isC.It’sD.What’s 27. in1914 the First World War broke out? A.Was that, thatB.Was that, whenC.Was it. thatD.Was it, when 28.It is5 / 13important that she with Mr Williams A.Was that, that B.Was that, when C.Was it. that D.Was it, when 28.It is important that she with Mr Williams immediately. A.speak B.spoke C.will speak D.to speak 29. that theres another good harvest this year. immediately. A.speak B.spoke C.will speak D.to speak 29. that theres another good harvest this year. A.It says B.It is said D.It was said D.He was said 30.It’ll be the first time the play. A.It says B.It is said D.It was said D.Hewas said 30.It’ll be the first time the play. A.I’ve watched B.I’ll watch C.I watch D.I would watch31.It’s no use over spilt milk. A.I’ve watchedB.I’ll watchC.I watchD.I would watch 31.It’s no use over spilt milk. A.cry B.crying C.that you cry D.foryou to cry 32.It was great joy he received the news thathis A.cry B.crying C.that you cry D.for you to cry32.It was great joy he received the news that his longlost son would return home A.as B.that C.so D.forlong lost son would return home A.as B.that C.so D.for 33. Everyone knows that _______ is dangerous to playwith fire, but _______ is difficult is to prevent children from playing with fire. A. it, it B. what,---------------------------------------------------------------最新资料推荐------------------------------------------------------what C. it, what D. what, it 34 I know ______is important to know my own limitations, but _______ isdifficult is to help others to know their own limitations. A.it, it B. what, what C. it, what D. what, it 35 Yes, ______ is difficult to find a job nowadays,but _____ is more difficult is try to find such a job with ahigh salary but little things to do. A. it, it B. what, what C. it, what D. what, it 36 Idislike _______ when others laugh at me in public or thinkpoorly of me behind. A. that B. thoseC. itD. them 37 I hate _______ ifpeople say such things in public. A. that B. those C. it D. them 38 Id prefer_______ if I didnt have to get up early on Sundays. A. that B. such C. it D. which 33.Everyone knows that _______ is dangerous to play with fire, but_______ is difficult is to prevent children from playing withfire. A. it, it B. what, what C. it,what D. what, it 34 I know ______ is importantto know my own limitations, but _______ is difficult is to helpothers to know their own limitations. A. it, it7 / 13B. what, whatC. it, whatD. what, it 35 Yes,______ is difficult to find a job nowadays, but _____ is moredifficult is try to find such a job with a high salary but littlethings to do. A. it, it B. what, what C.it, what D. what, it 36 I dislike _______ whenothers laugh at me in public or think poorly of me behind. A.that B. those C. it D. them 37 I hate _______ if people say such things in public.A. thatB. thoseC. itD. them 38 Id prefer _______ if I didnt have to get up earlyon Sundays. A. that B. such C. it D. which 39 I would appreciate _______ very much if you couldgive me some suggestions. A. this B.that C. it D. you 40Ive no idea. Ijust pretended nobody was at home, so I didnt ask who _______was. A. he B. that C. she D. it 41 Excuse me, I want to have my watch fixed, but I cantfind a repair shop. I know ________ nearby. Come on, Ill showyou. A. one B. it C. some D. that 42 There is only one English-Chinese dictionary in thatbook-shop. I wonder if you still want to buy _______. A. it B. one C. another D. any 43 Will you see to---------------------------------------------------------------最新资料推荐------------------------------------------------------_______ that my children are taken good care of while I am away?A. itB. meC. yourselfD. them 44 Ill see to _______ that all these letters will besent to the post before twelve. A. it B. me C. which D. them 45 Will you see to_______ that the luggage is brought back as soon as possible?A. meB. yourselfC. itD. them 46You may depend on _______ that he will turn up in time.39 I would appreciate _______ very much if you could give mesome suggestions. A. this B. that C.it D. you 40Ive no idea. I justpretended nobody was at home, so I didnt ask who _______ was.A. heB. thatC. sheD. it 41 Excuse me, I want to have my watch fixed, but I cantfind a repair shop. I know ________ nearby. Come on, Ill showyou. A. one B. it C. some D. that 42 There is only one English-Chinese dictionary in thatbook-shop. I wonder if you still want to buy _______. A. it B. one C. another D. any 43 Will you see to_______ that my children are taken good care of while I am away?A. itB. meC. yourself9 / 13D. them 44 Ill see to _______ that all these letters will besent to the post before twelve. A. it B. me C. which D. them 45 Will you see to_______ that the luggage is brought back as soon as possible?A. meB. yourselfC. itD. them 46You may depend on _______ that he will turn up in time.A. itB. meC. whichD. them 47 I cant answer for ________ that the boy is honest.A. itB. meC. whichD. them 48 Why shouldnt I buy a new coat I havent bought _____for five years. A. it B. that C.one D. which 49 He made _____ known to hisfriends that he didnt want to enter politics. A. that B. it C. himself D. him 50 It used to bethought _____ the Earth was flat. A. as B. when C. since D. that 51. The Parkersbought a new house but ______ will need a lot of work beforethey can move in. A. they B. it C. one D. which 52. _______ is well known _______ Hong Kong returnedto China on July 1st, 1997. A. It, that B. As,/ C. As, as D. It, which 53. I dont knowwhether I should go abroad or not, Mum. I leave _______ to---------------------------------------------------------------最新资料推荐------------------------------------------------------your own judgment whether you should do it. A. that B. it C. this D. what A. it B. me C. which D. them 47 I cant answer for________ that the boy is honest. A. it B. me C. which D. them 48 Why shouldnt I buya new coat I havent bought _____ for five years. A. it B. that C. one D. which 49 He made _____known to his friends that he didnt want to enter politics. A.that B. it C. himself D.him 50 It used to be thought _____ the Earth was flat. A. as B. when C. since D. that 51. The Parkersbought a new house but ______ will need a lot of work beforethey can move in. A. they B. it C. one D. which 52. _______ is well known _______ Hong Kong returnedto China on July 1st, 1997. A. It, that B. As,/ C. As, as D. It, which 53. I dont knowwhether I should go abroad or not, Mum. I leave _______ toyour own judgment whether you should do it. A. that B. it C. this D. what 54 Does ________matter if he cant finish the job on time? A. this B. that C. he D. it 55 They are good11 / 13friends. _______ is no wonder that they know each other so well.A. ThisB. ThatC. ThereD. It 56 They live on a busy main road. ______ must be very noisy.A. ThereB. ItC. ThatD. They 57. Why dont you bring ______ to his attention that youare too busy to do it? A. this B. whatC. thatD. it 58. Look at that lady on thestage. Shes already forty. You are joking. She doesnt look________. A. so B. it C. that D. this 59 _______ was known to them all that William had brokenhis promise ______ he would give each of them a gift. A. As;Which B. What; that C. It; that D.It; which 60 In the west, people make _______ a rule to sendChristmas present to their relatives and friends. A. this B. that C. it D. the following 参考答案 1.B 2.D 3.B 4.D 5.B 54 Does ________ matter if he cantfinish the job on time? A. this B. thatC. heD. it 55 They are good friends._______ is no wonder that they know each other so well. A.This B. That C. There D. It 56 They live on a busy main road. ______ must be very noisy.A. ThereB. ItC. That---------------------------------------------------------------最新资料推荐------------------------------------------------------D. They 57. Why dont you bring ______ to his attention that youare too busy to do it? A. this B. whatC. thatD. it 58. Look at that lady on thestage. Shes already forty. You are joking. She doesnt look________. A. so B. it C. that D. this 59 _______ was known to them all that William had brokenhis promise ______ he would give each of them a gift. A. As;Which B. What; that C. It; that D.It; which 60 In the west, people make _______ a rule to sendChristmas present to their relatives and friends. A. this B. that C. it D. the following 参考答案 1.B 2.D 3.B 4.D 5.B 6.C 7.A 8.D 9.C 10.C 11.A 12.C 13.C14.B 15.C 16.A 17.C 18.B 19.C 20.A 21.C 22.D 23.A 24.C 25.B26.C 27.C 28.A 29.B 30.A 31.B 32.B 33C 34C 35C CCD41-45.AAAAC 46-50.AACBD 51-55.BABDD 56-60.BDBCC 6.C 7.A8.D 9.C 10.C 11.A 12.C 13.C 14.B 15.C 16.A 17.C 18.B 19.C 20.A21.C 22.D 23.A 24.C 25.B 26.C 27.C 28.A 29.B 30.A 31.B 32.B33C 34C 35C CCD 41-45.AAAAC 46-50.AACBD 51-55.BABDD56-60.BDBCC13 / 13。

It的用法专题训练20题

It的用法专题训练20题It的用法专题训练20题湖南省涟源市私立行知中学曾省初【典型例题】1. (NMET2001单项填空)The Parkers bought anew house but _____will need a lot of work before they can move in.A. theyB. itC. oneD. which【思路点拨】B此题考查it 指代前面的a new house.2.{MET93单项填空}Tom’mother kept telling him that he should work harder , but ____ didn’t help.A. heB. whichC. sheD. it【思路点拨】D此题考查it 指代前面一句话，因有but,故which不能引导非限制性定语从句。

3.(NMET98，单项填空)It was only when I reread his poems recently ____I began to appreciate their beauty．A．until B．that C．then D．so【思路点拨】B 此题考查强调句，所以用that4.(MET 2000上海单项填空)It was how the young man had learned five foreign languages______ attracted the audience’s interest.A. so thatB. thatC. whatD. in which【思路点拨】B 此题考查强调句，所以用that1. Was it during the Second World War_____ he died?A .thatB .while C. in which D .then (88)2. Is ____ necessary to complete the design before National Day?A. this B .that C. it D .he (89)3. I don't think ____ possible to master a foreign language without much memory work.A .this B. that C .its D .it (91)4 .Does ______ matter if he can't finish the job on time?A. this B .that C .he D it (91)5 .It was not _____ she took off her glasses _____ I realized she was a famous film star.A .when , thatB .until , thatC .until , then D. when , then (92)6.I was disappointed with the film . I had expected ______ to be much better.A. thatB. thisC. one D .it (93)7. It was not until 1920 ______ regular radio broadcasts began.A. whileB. which C .that D .since (94)8. ______is a fact that English is being accepted as an international language.A. There B .This C .That D. It (95)9. It was only when I reread this poems recently _____ I began to appreciate their beauty.A. untilB. that C .then D. so (97)10.I hate _____when people talk with their mouths full.A. itB. that C these D .them (98)11．It was ______he said _______ disappointed me.(1999上海)A. what/thatB. that/thatC. what/whatD. that/ what12. It is the ability to do the job _____ matters not where you come from or what you are.A. one B .that C. what D .it (2000)13..____computers play such an important part in our daily life?A．Why it is that B．Why is it thatC．Why was it that D．Why is it14.It was not until 1936___baseball became a regular part of Olympic Games.A. thenB. which C that D. when15..___in 1943___the harmful smog made its appearance in Los Angeles.A. Only.……that B It was.……then C.That it was.……when D. It was.……that16..It was on the National Day___she met with herseparated sister.A .thatB .where C. when D. which17.___the 1500's___the first European explored the coast of California.A. It was until……thenB. It was not until……whenC. It is until……thatD. It was no t until……that18. .___in this room that our first meeting was held.A. Just whenB. WhenC. Where D .It was19.．It is because he is too young _______ he does not understand it.A. asB. soC. thatD. what20.It was for this reason ____ her uncle moved out of New York and settled down in a smallvillage．A．which B．why C．that D．howKEYS: 1-5 ACDDB 6-10 DCDBA 11 A 12 B13 B 14-20.CDADDCC。

（完整版）It练习题

（完整版）It练习题Exercises:一．单项选择1. It was at the gate ____ he told me the news.A. thatB. whatC. whichD. when2.Is ____necessary to tell his father everythingA. itB. thatC. whatD. he3.Was it in this palace ____ the last emperor died?A. thatB. in whichC. in whereD. which4. Is ____ possible to fly to the moon in a spaceship?A. nowB. manC. thatD. it5.Was it during the Second World War ____he died?A. thatB. whileC. in whichD. then6. Is ____necessary to complete the design before NationalDay?A. thisB. thatC. itD. he7.I don't think ____possible to master a foreign language without much memory work.A. thisB. thatC. itsD. it8.Does ____matter if he can't finish the job on time?A. thisB. thatC. heD. it9.It was not ____she took off her dark glasses ____ I realized she was a famous film star.A. when; thatB. until; thatC. until; whenD. when; then10. Tom‘s mother kept telling him that he should work harder, but ____didn’t help.A. heB. whichC. sheD. it11.____is a fact that English is being accepted as an international language.A. ThereB. ThisC. ThatD. It12. Is ________ possible to fly to the moon in a spaceship?A．now B．man C．that D．it13．Our food and service are better than ________ used to be.A．it B．we C．they D．them14．________ appears to me ________ the report must be truth.A．That; it B．It; that C．It; it D．That; that15．He feels ________ duty to help others.A．that he B．that his C．it he D．it his16．Take ________ easy. The roads are icy.A．it B．them C．us D．you17．The TV sets made in China are much better than ________ in Japan.A．that B．those C．them D．It18．—— Have you found the bike you lost yesterday?——Yes, I've found ________ already.A．it B．that C．the one D．that one19.——I'm looking for a flat.——Would you like ____ with ____ garden?A．it; the B．it; a C．one; a D．one; the20．________ was ________ who I met in the museum this morning.A．It; him B．It; he C．That; he D. That; him21．It was in the rice fields ________ we had our League meeting.A．where B．that C．in which D．on which22．________ you come to the party so late?A．Why is it B．Why it is C．Why it is that D．Why is it that 23．—— Were all three people in the car injured in the accident —— No, ___ only the two passengers ___ got hurt．A．they were; that B．there was; that C．it was; who D．there are; who 24．I don' t think ________ possible to master a foreign language without much memory work . A．this B．that C．its D．it25．It was not ________ she took off her glasses ________ I realized she was a famous film star．A. when; thatB. until; thatC. until; whenD. when; then26.It was not until 1920 ____ regular radio broadcasts began.A．while B．which C．that D．since27．________ is a fact that English is being accepted as an international language.A．There B．This C．That D．It28．It was about 600 years ago ________ the first clock with a face and an hour hand was made. A．that B．until C．before D．when29．It was only when I reread his poems recently ____ I began to appreciate their beauty. A．until B．that C．then D．So 30．I hate ______ when people talk with their mouths full.A．it B．that C．these D．them31．—— Why don't we take a little break? ——Didn't we just have ________ ?A．it B．that C．one D．this32.Was it during the Second World War ____ he died？(MET88)A．that B．While C．in which D．Then33.Is ____ possible to fly to the moon in a spaceship？(MET88)A．now B．that C．it D．Man34.I don't think ___ possible to master a foreign language without much memory work．(MET90) A．This B．that C．its D．It35.___ is a fact that English is being accepted as an international language．(NMET95) A．There B．This C．That D．It36. It was about 600 years ago ___ the first clock with face and an hour hand was made.(NMET97) A．that B．until C．before D．when37.____computers play such an important part in our daily life?A．Why it is that B．Why is it that C．Why was it that D．Why is it38. Was it during the Second World War _____he died?A. thatB. whileC. in whichD. then39. Is ____ necessary to take off our shoes when we enter the lab?A. everyoneB. thisC. herD. it40. Is ____ possible to fly to the moon in a spaceship?A. nowB. thatC. itD. man41. I don’t think ___ possible to master a foreign language without much memory work.A. thisB. thatC. itsD. it42. She heard of a terrible noise, ___ brought her heart into her mouth.A. itB. whichC. thisD. that43. Alice received an invitation from her boss, ____ came as a surprise.A. itB. thatC. whichD. he44. Does ____ matter if he can’t finish the job on time?A. thisB. thatC. heD. it45.Tom’s mother kept telling him that he should work harder, but ____ didn’t help.A. heB. whichC. sheD. it46. The weather turned out to be very good, ___ was more than we could expect.A. whatB. whichC. thatD. it47.____is a fact that English is being accepted as an international language.A. ThereB. ThisC. ThatD. It48. I hope there are enough glasses for each guest to have _____.A. itB. thoseC. themD. one49. It was about 600 years ago ___the first clock with a face and an hour hand was made.A. thatB. untilC. beforeD. when50. I hate ____ when people talk with their mouths full.A. itB. thatC. theseD. them51. It was only when I reread his poems recently____ I beganto appreciate their beauty.A. untilB. thatC. thenD. so52. It is the ability to do the job ____ matters not where you come from or what you are.A. oneB. thatC. whatD. it53. It ____ you that ____ to blame.A. is; isB. is; areC. are; areD. are; is54. Was_____that I saw last night at the concert?A. it youB. not youC. youD. that you55.____ electricity plays such an important part in our life?A. Why is it thatB. Why is itC. Why it is thatD. Why is that56. It was ____ he said _____ disappointed me.A. what; whatB. that; thatC. what; thatD. that; what57. It was in the lab ___ was taken charge of by Professor Harris ___ they did the experiment.A. which; thatB. that; whatC. whom; thatD. which; where58.Many people now make a rule to buy cards for their friends before Christmas.A. themselvesB. itC. thatD. this59.Someone is at the door, who is ?A. thisB. thatC. itD. he60.—It is raining cats and dogs.—.A. So it isB. So is itC. Neither it isD. Neither is it二.分析it成分，辨清相似句型。

（完整word版）It用法练习题及答案

（完整word版）It用法练习题及答案It的用法It的用法在高考中也是重现率较高的语言点，尤其是it用于强调句。

其考查方式多通过“单项填空”进行，偶尔也出现在“短文改错”和“完形填空”中。

一、要点点拔1．代替上文中提到过的人或事物。

指代人时，一般用于小孩或身份不十分明朗的人。

1) －Who is the baby?－It‘s my teacher’s son．2) －Who is that gentleman?－It's my friend Tom．He(不可用It) wants to see you．2．用于表达天气、环境、时间、距离、季节等。

例如：1) It’s half an hour’s walk from here to our school．2) It‘s nice and warm here．3) But it's two o'clock now, and it's time for us to go to school．3．用作形式主语.it 没有具体意义，而只是帮助把真正的主语移至句子后尾，使句子显得平稳一些，能借it 给移至句子后尾的主语有三种：一种由不定式表示，一种由动名词表示，一种由从句表示。

1).It 替代真正的主语——动词不定式短语.It is easier to say than to do .It is a good act to help the others.2).it 替代真正的主语——动名词短语,以动名词短语做主语的句子，主要在以no good, no use, no harm, dangerous, foolish 等词作表语的句中.It’s no harm drinking running water in that area。

It’s foolish talking like that.3).it 替代从句作主语，用从句做主语的带it 的句子很多,常见的有下面几类：①It is a pity (a shame ,a fact ,a wonder ,a good thing,etc. )that…It is a shame that he didn’t pass the exam.②It is strange ( surprising,obvious ,true, good,possible,clear,etc. ) that…。

It 专项习题附答案

It 专项习题一1.__________________________________________________(正当他体力耗尽时) that the rescueteam came. (energy, give)2.It’s usually the mother ______________________________________(使家人团结在一起) . ( hold)3.It is generally thought that ____________________________________________(正是父母应受到责备) for the children with bad manners. (blame)4._________________________________ (正是由于水涨了) that we would not cross the river. ( rise)5.It _____________________________(来拜访你的可能是莉莉) you so late, but I am not sure. (call)6._____________________________(正是在哪儿) China succeeded in sending up Chang’e Isatellite?( it)7.____________________________________(正是他所做的事) left the whole family in a mess. (do )8._____________________________________________________(正是他带领这对盲人夫妇)through the streets to the railway station. ( guide)9.Why! I have nothing to confess. _____________________(是什么) that you want me to say?( it) 10．I really don’t know for certain _______________________________(到底在哪里)they discussed this important event very secretly. ( it)二1._____________________________________________________________________ (直到一场暴风雨即将来临) that Jennifer realized that she had not lost her key to the car. (corner)2.______________________________________________________________(直到疾病爆发) thatpeople began to know it was dangerous to eat some wild animals. (break)3.___________________________________________(直到他呆在) on the island for a couple ofweeks that he realized this place wasn’t so unpleasant. ( stay)三1．____________________________(没过多久) the 29th Olympic Games are held in Beijing. (before) 2．Jack lost his pocket computer when at school. _____________________________________(过了很长一段时间) his parents discovered what had happened. ( time)四1.The motto _________________(阐明) that science and business can and must work together to buildthe future. (clear)2.The development of technology ______________________________(已使我们可能) get in touchwith each other more easily. (make)3.You __________________________________(会发现很有价值) after you read this book. ( value)4.We think ____________________________(这是我们的职责) pay taxes to our government. ( duty)5. What a small meeting room! Do you think it possible __________________________________(这么多学生坐进去) ? (sit)五1._________________________________________________________________(你认为多久) the computer company brings out a new product? ( before)2._____________________ (没过多久) the wooden building was swallowed by the fire. ( take)3. Love and patience are ________________________(所需要的) look after the children. ( take)4. ___________________________(将花费我们两个小时) to get to the airport, allowing for the traffic delays. (it)六1.It was the first time that _______________________________________________________(我第一次用激情写作). (write, passion)2.You look pretty! This is the first time I __________________________(看见你穿着) a skirt. (wear) 七1.____________________________________________(已经再三证明) that frequent advertisingincreases product sales. (prove)2._______________________________________(已经宣布) Alexander will be in charge of our salesdepartment next week. ( announce)3.___________________________(据报道) Harry Potter is so interesting a book that all childrenbesides adults like to read it. ( report)八1. When the snowstorm came, ____________________(有人建议) that traffic should be reduced.(suggest)2. _________________________(人们强烈建议) that strict measures should be taken to reduce the ever-increasing road traffic accidents. (recommend)九1. __________________________(已经过了几个月) since I met him last time.( few)2. __________________________________________________________(你认为还要多久) since he arrived here? ( long, suppose)十1. _____________________________________(他突然想起) he had left the dictionary in the library on they way home. (occur)2. ___________________________________(没有关系) to me which side loses or wins. (difference)3.________________________(是明智的) quit smoking as early as possible form lung cancer. ( sense) 4．___________________________(尚待分晓) whether Liu Xiang will win the gold medal in the 2008 Olympic Games in Beijing. (remain)5. She was seeking a fortune in the big city, but _________________(结果是) that she didn’t get the job in the end. (turn)十一1. It _______________________(很有可能) many of them will be born in northwestern Beijing. ( likely)2. ___________________________(差不多可以肯定) that the present government will lose the next election. (it)十二1. Come and see me ___________________________________________(你方便的时候). (convenient)2. ____________________________________________(取笑…是无礼的) the disabled. On the contrary, we should do what we can to help them. (rude, fun)3. It seems impossible _____________________________(解决这个问题) , because we have no time at all. (solve)十三1. It is necessary that a doctor ______________________________(被派去) there at once. ( send)十四1. It is no use ______________________(谈论) that matter. ( talk)十五1. ___________________(似乎) nobody knows what has happened. (seem)十六1. ____________________________(我们深感荣幸) to host the 2008 Beijing Olympic Games and welcome athletes and friends form all over the world. ( honour)十七1. It ______________________(他真是大方) to give away ten million Yuan to the people suffering a lot in flooded areas. ( generous)十八1. It is high time that we students _______________________(更加努力) our lessons for the national entrance examination. (work)Key:一1. It was when his energy gave out 2. who holds the family members together 3. it is the parents who are to blame4. It was because the water had risen5. may be Lili who called on6. Where was it that7. It was what he had done8. It was he who guided the blind couple 9. What is it 10. where it was that二 1. It was not until a storm was just around the corner 2. It was not until the disease broke out 3. It was not until he hadstayed 三1. It won’t be long before 2. It was a long time before四1. makes it clear that 2. has made it possible 3.will find it of great value 4. it our duty to 5. for so many students to sit in 五1. How long do you think it will take before 2. It didn’t take long 3. what it takes to 4. It will take us two hours六 1. I had written with real passion 2. have seen you wearing七 1. It has been proved again and again 2. It has been announced 3. It is reported八1. it was suggested 2. It is strongly recommended九1. It has been a few months 2. How long do you suppose it is/has been十1. It occurred to him that 2. It makes no difference to me 3. It makes sense to 4. It remains to be seen 5. it turned out十一1. It is likely that 2. It is almost certain十二1. when it is convenient for you 2. It is rude to make fun of 3. to solve the problem十三 1. (should) be sent 十四1. talking about 十五1. It seems that 十六1. It is our great honour/We feel greatly honoured 十七1. is generous of him 十八1. worked harder at。

itself练习题

itself练习题一、选择题1. 下列哪个选项是面向对象的编程语言？A. CB. JavaC. PythonD. HTMLA. defB. classC. functionD. object3. 下列哪个选项表示字符串类型？A. intB. floatC. strD. listA. classB. interfaceC. extendsD. implements5. 下列哪个选项表示整型类型？A. intB. floatC. doubleD. charA. structB. classC. unionD. enum7. 下列哪个选项表示布尔类型？A. boolB. intC. floatD. charA. functionB. methodC. procedureD. subroutine9. 下列哪个选项表示集合类型？A. listB. setC. dictD. tupleA. listB. tupleC. dictD. set二、填空题1. 在Python中，使用______关键字可以定义一个函数。

2. 在Java中，使用______关键字可以定义一个抽象类。

3. 在C++中，使用______关键字可以定义一个常量。

4. 在JavaScript中，使用______关键字可以定义一个变量。

5. 在HTML中，使用______标签可以定义一个段落。

6. 在CSS中，使用______选择器可以选择所有具有特定类名的元素。

7. 在SQL中，使用______语句可以插入数据到数据库表中。

8. 在Python中，使用______函数可以连接两个字符串。

9. 在Java中，使用______方法可以获得字符串的长度。

10. 在C++中，使用______关键字可以定义一个引用。

三、编程题1. 编写一个Python函数，实现输入一个整数，输出它的阶乘。

2. 编写一个Java程序，实现输入一个字符串，输出它的反转。

2024年新课标I卷高考英语真题及答案 (2) - 副本

2024年新课标I卷高考英语真题及答案考生注意：1. 答题前，请务必将自己的姓名、准考证号用黑色字迹的签字笔或钢笔分别填写在试题卷和答题纸规定的位置上。

2. 答题时，请按照答题纸上“注意事项”的要求，在答题纸相应的位置上规范作答，在本试题卷上的作答一律无效。

第一部分听力（共两节，满分30分）做题时，先将答案标在试卷上。

录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题纸上。

第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

例：How much is the shirt?A. £19.15.B. £9.18.C. £9.15.答案是C。

1. What is Kate doing?A. Boarding a flight.B. Arranging a trip.C. Seeing a friend off.2. What are the speakers talking about?A. A pop star.B. An old song.C. A radio program.3. What will the speakers do today?A. Go to an art show.B. Meet the man's aunt.C. Eat out with Mark.4. What does the man want to do?A. Cancel an order.B. Ask for a receipt.C. Reschedule a delivery.5. When will the next train to Bedford leave?A. At 9:45.B. At 10:15.C. At 11:00.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。

编程练习题(打印版)

编程练习题（打印版）1. 基本数据类型
编写一个程序，实现以下功能：
- 输入一个整数和一个浮点数。

- 计算这两个数的和，并输出结果。

2. 字符串操作
编写一个程序，实现以下功能：
- 输入一个字符串。

- 反转这个字符串，并输出。

3. 数组遍历
编写一个程序，实现以下功能：
- 输入一个整数数组。

- 计算数组中所有元素的和，并输出。

4. 函数定义
编写一个函数，实现以下功能：
- 接收一个整数参数。

- 返回该整数的平方。

5. 条件语句
编写一个程序，实现以下功能：
- 输入一个整数。

- 如果这个整数是偶数，输出“偶数”；否则输出“奇数”。

6. 循环结构
编写一个程序，实现以下功能：
- 输出从1到10的整数，每个整数一行。

7. 排序算法
编写一个程序，实现冒泡排序算法：
- 输入一个整数数组。

- 使用冒泡排序算法对数组进行排序，并输出排序后的数组。

8. 递归函数
编写一个递归函数，计算一个整数的阶乘：
- 接收一个整数参数。

- 返回该整数的阶乘值。

9. 文件操作
编写一个程序，实现以下功能：
- 读取一个文本文件的内容。

- 将文件内容输出到控制台。

10. 异常处理
编写一个程序，实现以下功能：
- 尝试将用户输入的字符串转换为整数。

- 如果转换失败，捕获异常并输出错误信息。

注意：这些练习题是编程基础的入门练习，适合初学者进行编程实践。

在编写程序时，请确保代码的可读性和健壮性。

it专项训练(附答案)

“It ”的用法II2011-12-22答题卷：1-5___________6-10______________;11-15_____________16-21______________ 句型比较1-5_______6-9__________;1. The employment rate has continued to rise in big cities thanks to theefforts of the local governments to increase__________ .A. themB. thoseC. itD. that2. We have various summer camps for your holidays. You can choose____ based on your own interests.A. eitherB. eachC. oneD. it3. The cost of renting a house in central Xi’an is higher than ____ in anyother area of the city.A. thatB. thisC. itD. one4.—There is still a copy of the book in the library. Wall you go andbottow ______?—No, I’d rather buy _____ in the bookstore.A.it;oneB.one;oneC.one;itD.it;it5. Someone is ringing the doorbell. Go and see ____.A. who is heB. who he isC. who is itD. who it is6.We feel______ our duty to make our school a better place.A. itB. thisC. thatD. one7. They have made __ a rule __ in the room.A. this; not to smokeB. it; smokingC. it; to not smokeD.it; not to smoke8.The two girls are so alike that strangers find_____ difficult to tell onefrom the other.A. itB. them C, her D. that9. The chairman thought_____ necessary to invite Professor Young tospeak at the meeting.A. thatB. itC. thisD. him10.He didn’t make ________ clear when and where the meeting would beheld.A. thisB. thatC. itD. these11.Why don’t you bring _____ to his attention that you’re too ill to workon?A. thatB.itC.hisD.him12. I like _______ in the autumn when the weather is clear and bright.A. thisB. thatC. itD. one13. I’d appreciate ____ if you would like to help me improve myEnglish..A. thatB. itC. thisD. you14. ___ felt funny watching myself on TV.A. OneB. ThisC. ItD. That15._______ worries me the way he keeps changing his mind.A．This B．That C．What D．It16. Was it on a lonely island ______ he was saved one month after theboat went down?A. whereB. thatC. whichD. what17. It is not how much we do but how much love we put into what wedo______benefits our work most.A. whoB. whichC. thatD. what18.It’s not what we do once in a while ______ shapes our lives, but whatwe do consistentlyA .which B. that C. how D. when19.I don’t mind her criticizing me, but is how she does itthat I object to.A. itB.thatC.thisD.which20.It was_____back home after the experiment.A. not until midnight did he goB. until midnight that he didn’t goC. not until midnight that he wentD. until midnight when he didn’t go21. I just wonder ______ that makes him so excited.A. why it doesB. what he doesC. how it isD. what it is句型比较：1. Was ___ in 2005 ___ Cindy graduated from university?A. that.., thatB. it... whichC. it... thatD. it... when2 It was 2005 _________ Young graduated from university.A. thatB. whichC. whenD. since3. It was in the canteen ________ they exchanged their telephonenumbers.A. thatB. whichC. whenD. where4. It is the canteen ________ we have meals every day.A. thatB. whichC. whenD. where5. It is two years __ I joined the army.A. beforeB. sinceC. thatD. after6. It was two years ___ I joined the army.A. beforeB. sinceC. thatD. after7 It won’t be long ______ the final exams are coming.A. thatB. whenC. sinceD. before.8.._____ is reported _____ it is the burning of more and more fossil fuels _____ has resulted in this increase in carbon dioxide.A. It ;that; thatB. What ; is ;thatC. It; what; what D As; that ; what9._____ happened ______ we met in the canteen.A. It ,when;B. It , thatC. It, whatD. what ; that参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB参考答案：1-5 CCAAD 6-10 ADABC 11-15 BCBCD 16-21 BCBACD 句型比较1-5 CCADB 6-9 ADAB。

it练习题

操作系统1. 简述操作系统的五大基本功能。

2. 什么是进程？进程与线程有什么区别？3. 什么是虚拟内存？它有什么作用？4. 简述文件系统的基本概念。

5. 什么是磁盘碎片？如何进行磁盘碎片整理？6. 什么是I/O操作？常见的I/O设备有哪些？7. 什么是进程调度？常见的进程调度算法有哪些？8. 什么是死锁？如何避免死锁？9. 什么是管道？管道有什么作用？10. 什么是信号量？信号量有什么作用？计算机网络1. 什么是TCP/IP协议？它由哪些协议组成？2. 什么是IP地址？IP地址的分类有哪些？3. 什么是子网掩码��如何计算子网掩码？4. 什么是DNS？DNS的作用是什么？5. 什么是HTTP协议？HTTP协议的工作原理是什么？6. 什么是FTP协议？FTP协议的工作原理是什么？7. 什么是SMTP协议？SMTP协议的工作原理是什么？8. 什么是SSL/TLS协议？SSL/TLS协议的作用是什么？9. 什么是防火墙？防火墙的作用是什么？10. 什么是VPN？VPN的作用是什么？数据库1. 什么是数据库？数据库的基本概念有哪些？2. 什么是关系型数据库？关系型数据库的特点是什么？3. 什么是SQL语言？SQL语言的基本功能有哪些？4. 什么是数据库的三范式？三范式的作用是什么？5. 什么是索引？索引的作用是什么？6. 什么是事务？事务的ACID特性是什么？7. 什么是视图？视图的作用是什么？8. 什么是存储过程？存储过程的作用是什么？9. 什么是触发器？触发器的作用是什么？10. 什么是数据库连接池？数据库连接池的作用是什么？编程语言1. 什么是C语言？C语言的特点是什么？2. 什么是Java语言？Java语言的特点是什么？3. 什么是Python语言？Python语言的特点是什么？4. 什么是JavaScript语言？JavaScript语言的特点是什么？5. 什么是C++语言？C++语言的特点是什么？6. 什么是PHP语言？PHP语言的特点是什么？7. 什么是Ru语言？Ru语言的特点是什么？8. 什么是Go语言？Go语言的特点是什么？9. 什么是Swift语言？Swift语言的特点是什么？10. 什么是Kotlin语言？Kotlin语言的特点是什么？软件工程1. 什么是软件工程？软件工程的目标是什么？2. 什么是需求分析？需求分析的方法有哪些？3. 什么是软件设计？软件设计的方法有哪些？4. 什么是编码？编码的原则有哪些？5. 什么是测试？测试的方法有哪些？6. 什么是软件维护？软件维护的类型有哪些？7. 什么是敏捷开发？敏捷开发的特点是什么？8. 什么是Scrum？Scrum的特点是什么？9. 什么是DevOps？DevOps的特点是什么？10. 什么是持续集成？持续集成的优势是什么？网络安全1. 什么是网络安全？网络安全的目标是什么？2. 什么是加密？加密的算法有哪些？3. 什么是认证？认证的方法有哪些？4. 什么是访问控制？访问控制的方法有哪些？5. 什么是入侵检测？入侵检测的原理是什么？6. 什么是漏洞？如何发现和修复漏洞？7. 什么是恶意软件？恶意软件的类型有哪些？8. 什么是DDoS攻击？如何防御DDoS攻击？9. 什么是数据泄露？如何防止数据泄露？10. 什么是安全审计？安全审计的作用是什么？算法与数据结构1. 什么是栈？栈的典型应用场景有哪些？2. 什么是队列？队列的典型应用场景有哪些？3. 什么是链表？链表的优缺点是什么？4. 什么是树？树的遍历方法有哪些？5. 什么是图？图的连通性如何判断？6. 什么是哈希表？哈希表的查找效率如何？7. 什么是排序算法？常见的排序算法有哪些？8. 什么是查找算法？常见的查找算法有哪些？9. 什么是动态规划？动态规划的应用场景有哪些？10. 什么是贪心算法？贪心算法的适用条件是什么？系统安全1. 什么是系统安全？系统安全的主要威胁有哪些？2. 什么是操作系统安全？操作系统安全的主要措施有哪些？3. 什么是网络安全？网络安全的主要防护措施有哪些？4. 什么是应用安全？应用安全的主要威胁有哪些？5. 什么是数据安全？数据安全的主要保护措施有哪些？6. 什么是身份认证？常见的身份认证方法有哪些？7. 什么是访问控制？访问控制的实现方式有哪些？8. 什么是安全审计？安全审计的目的是什么？9. 什么是安全漏洞？如何进行安全漏洞扫描？10. 什么是安全事件响应？安全事件响应的流程是什么？数据库设计1. 什么是数据库设计？数据库设计的基本步骤有哪些？2. 什么是ER图？ER图的作用是什么？3. 什么是关系模式？关系模式的设计原则有哪些？4. 什么是范式？范式的作用是什么？5. 什么是规范化？规范化有哪些级别？6. 什么是数据库规范化设计？数据库规范化设计的方法有哪些？7. 什么是数据库物理设计？数据库物理设计的方法有哪些？8. 什么是数据库优化？数据库优化的方法有哪些？9. 什么是数据库备份与恢复？数据库备份与恢复的策略有哪些？10. 什么是数据库复制？数据库复制的类型有哪些？软件测试1. 什么是软件测试？软件测试的目的有哪些？2. 什么是单元测试？单元测试的方法有哪些？3. 什么是集成测试？集成测试的方法有哪些？4. 什么是系统测试？系统测试的方法有哪些？5. 什么是性能测试？性能测试的指标有哪些？6. 什么是压力测试？压力测试的方法有哪些？7. 什么是负载测试？负载测试的方法有哪些？8. 什么是回归测试？回归测试的方法有哪些？9. 什么是自动化测试？自动化测试的工具有哪些？10. 什么是测试管理？测试管理的工具有哪些？项目管理1. 什么是项目管理？项目管理的知识体系有哪些？2. 什么是项目计划？项目计划的方法有哪些？3. 什么是项目进度管理？项目进度管理的方法有哪些？4. 什么是项目风险管理？项目风险管理的方法有哪些？5. 什么是项目沟通管理？项目沟通管理的方法有哪些？6. 什么是项目质量管理？项目质量管理的方法有哪些？7. 什么是项目资源管理？项目资源管理的方法有哪些？8. 什么是项目收尾管理？项目收尾管理的方法有哪些？9. 什么是敏捷项目管理？敏捷项目管理的特点有哪些？10. 什么是项目管理工具？常见的项目管理工具有哪些？云计算1. 什么是云计算？云计算的典型应用场景有哪些？2. 什么是IaaS？IaaS的特点是什么？3. 什么是PaaS？PaaS的特点是什么？4. 什么是SaaS？SaaS的特点是什么？5. 什么是云存储？云存储的类型有哪些？6. 什么是云数据库？云数据库的特点是什么？7. 什么是云安全？云安全的主要威胁有哪些？8. 什么是云服务模型？云服务模型有哪些类型？9. 什么是云部署模型？云部署模型有哪些类型？10. 什么是云服务提供商？常见的云服务提供商有哪些？2. 什么是机器学习？机器学习的分类有哪些？3. 什么是深度学习？深度学习的应用场景有哪些？4. 什么是神经网络？神经网络的结构有哪些？5. 什么是自然语言处理？自然语言处理的应用场景有哪些？6. 什么是计算机视觉？计算机视觉的应用场景有哪些？7. 什么是语音识别？语音识别的应用场景有哪些？8. 什么是机器翻译？机器翻译的原理是什么？9. 什么是自动驾驶？自动驾驶的技术有哪些？10. 什么是智能？智能的应用场景有哪些？硬件基础1. 什么是CPU？CPU的主要性能指标有哪些？2. 什么是内存？内存的类型有哪些？3. 什么是硬盘？硬盘的类型有哪些？4. 什么是显卡？显卡的主要性能指标有哪些？5. 什么是主板？主板的功能有哪些？6. 什么是网络接口卡？网络接口卡的作用是什么？7. 什么是电源？电源的功率和效率如何选择？8. 什么是散热系统？散热系统的类型有哪些？9. 什么是BIOS和UEFI？它们的作用是什么？10. 什么是固件？固件的作用是什么？网络设备1. 什么是路由器？路由器的主要功能有哪些？2. 什么是交换机？交换机的类型有哪些？3. 什么是防火墙？防火墙的分类有哪些？4. 什么是无线接入点？无线接入点的类型有哪些？5. 什么是网桥？网桥的作用是什么？6. 什么是网关？网关的作用是什么？7. 什么是中继器？中继器的作用是什么？8. 什么是集线器？集线器的功能有哪些？9. 什么是调制解调器？调制解调器的类型有哪些？10. 什么是VPN设备？VPN设备的作用是什么？软件开发工具1. 什么是集成开发环境（IDE）？常见的IDE有哪些？2. 什么是版本控制工具？常见的版本控制工具有哪些？3. 什么是代码编辑器？常见的代码编辑器有哪些？4. 什么是调试工具？常见的调试工具有哪些？5. 什么是性能分析工具？常见的性能分析工具有哪些？6. 什么是测试工具？常见的测试工具有哪些？7. 什么是项目管理工具？常见的项目管理工具有哪些？8. 什么是文档工具？常见的文档工具有哪些？9. 什么是代码审查工具？常见的代码审查工具有哪些？10. 什么是持续集成工具？常见的持续集成工具有哪些？系统维护1. 什么是系统备份？系统备份的方法有哪些？2. 什么是系统恢复？系统恢复的方法有哪些？3. 什么是系统更新？系统更新的方法有哪些？4. 什么是系统优化？系统优化的方法有哪些？5. 什么是病毒防护？病毒防护的方法有哪些？6. 什么是系统安全策略？系统安全策略的内容有哪些？7. 什么是系统性能监控？系统性能监控的方法有哪些？8. 什么是系统日志管理？系统日志管理的方法有哪些？9. 什么是系统故障排除？系统故障排除的步骤有哪些？10. 什么是系统性能分析？系统性能分析的方法有哪些？信息安全1. 什么是信息安全？信息安全的目标有哪些？2. 什么是安全策略？安全策略的内容有哪些？3. 什么是访问控制？访问控制的类型有哪些？4. 什么是加密技术？常见的加密算法有哪些？5. 什么是数字签名？数字签名的应用场景有哪些？6. 什么是安全审计？安全审计的方法有哪些？7. 什么是入侵检测系统？入侵检测系统的功能有哪些？8. 什么是安全漏洞？如何发现和修复安全漏洞？9. 什么是恶意软件？恶意软件的类型有哪些？10. 什么是数据泄露？如何防止数据泄露？数据中心1. 什么是数据中心？数据中心的作用有哪些？2. 什么是数据中心架构？数据中心架构的类型有哪些？3. 什么是数据中心设计？数据中心设计的关键因素有哪些？4. 什么是数据中心运营？数据中心运营的挑战有哪些？5. 什么是数据中心能源管理？数据中心能��管理的方法有哪些？6. 什么是数据中心安全？数据中心安全的主要威胁有哪些？7. 什么是数据中心网络？数据中心网络的架构有哪些？8. 什么是数据中心存储？数据中心存储的类型有哪些？9. 什么是数据中心备份与恢复？数据中心备份与恢复的策略有哪些？10. 什么是数据中心虚拟化？数据中心虚拟化的优势有哪些？数据库管理1. 什么是数据库管理员（DBA）的角色和职责？2. 如何进行数据库性能监控和优化？3. 数据库备份和恢复的策略有哪些？4. 如何实现数据库的并发控制和事务管理？5. 什么是数据库索引优化？如何进行索引优化？6. 如何进行数据库的分区和分片？7. 什么是数据库的归档和清理策略？8. 如何实现数据库的安全性控制？9. 什么是数据库的容错和灾难恢复？10. 如何进行数据库的迁移和升级？软件架构1. 什么是软件架构？软件架构的设计原则有哪些？2. 什么是分层架构？分层架构的优点是什么？3. 什么是微服务架构？微服务架构的优势和挑战有哪些？4. 什么是事件驱动架构？事件驱动架构的应用场景有哪些？5. 什么是服务导向架构（SOA）？SOA的特点是什么？6. 什么是RESTful API设计？RESTful API设计的原则有哪些？7. 什么是模型视图控制器（MVC）架构？MVC架构的优点是什么？8. 什么是前端架构？前端架构的流行模式有哪些？9. 什么是后端架构？后端架构的流行模式有哪些？10. 什么是容器化架构？容器化架构的优势是什么？网络协议1. 什么是HTTP/2？HTTP/2与HTTP/1.1的主要区别是什么？2. 什么是？的工作原理是什么？3. 什么是DNS解析过程？4. 什么是TCP和UDP的区别？5. 什么是IPsec？IPsec的作用是什么？6. 什么是NAT（网络地址转换）？7. 什么是VPN（虚拟私人网络）？8. 什么是SDN（软件定义网络）？9. 什么是NFV（网络功能虚拟化）？10. 什么是5G网络？5G网络的主要特点是什么？信息伦理1. 什么是信息伦理？信息伦理的基本原则有哪些？2. 什么是隐私权？如何保护个人隐私？3. 什么是知识产权？知识产权的保护措施有哪些？4. 什么是网络安全法？网络安全法的主要内容有哪些？5. 什么是数据保护法规？数据保护法规的要求有哪些？6. 什么是网络钓鱼？如何防范网络钓鱼？7. 什么是网络暴力？如何应对网络暴力？8. 什么是信息战？信息战的特点和影响有哪些？9. 什么是数字鸿沟？如何缩小数字鸿沟？10. 什么是信息素养？如何提高信息素养？虚拟化1. 什么是虚拟化？虚拟化的类型有哪些？2. 什么是虚拟机？虚拟机的工作原理是什么？3. 什么是虚拟化平台？常见的虚拟化平台有哪些？4. 什么是容器技术？容器技术与虚拟机的区别是什么？5. 什么是虚拟化性能优化？虚拟化性能优化的方法有哪些？6. 什么是虚拟化安全？虚拟化安全的主要威胁有哪些？7. 什么是云虚拟化？云虚拟化的优势是什么？8. 什么是虚拟化存储？虚拟化存储的类型有哪些？9. 什么是虚拟化网络？虚拟化网络的特点是什么？10. 什么是虚拟化管理？虚拟化管理的关键功能有哪些？大数据1. 什么是大数据？大数据的特点是什么？2. 什么是Hadoop？Hadoop的架构有哪些？3. 什么是Spark？Spark的应用场景有哪些？4. 什么是数据挖掘？数据挖掘的方法有哪些？5. 什么是数据仓库？数据仓库的设计原则有哪些？6. 什么是数据流处理？数据流处理的工具有哪些？7. 什么是机器学习在大数据中的应用？8. 什么是数据可视化？数据可视化的工具有哪些？9. 什么是大数据分析？大数据分析的方法有哪些？10. 什么是大数据安全？大数据安全的主要挑战有哪些？移动计算1. 什么是移动计算？移动计算的特点是什么？2. 什么是移动操作系统？常见的移动操作系统有哪些？3. 什么是移动应用开发？移动应用开发的框架有哪些？4. 什么是移动网络？移动网络的技术有哪些？5. 什么是移动支付？移动支付的安全性问题有哪些？6. 什么是物联网（IoT）？物联网的应用场景有哪些？7. 什么是移动设备管理（MDM）？MDM的功能有哪些？8. 什么是移动安全？移动安全的主要威胁有哪些？9. 什么是移动应用商店？移动应用商店的运营模式有哪些？10. 什么是移动云计算？移动云计算的优势是什么？答案操作系统1. 操作系统的五大基本功能：进程管理、存储管理、文件管理、设备管理和用户接口。

it运维笔试题及答案

it运维笔试题及答案IT运维笔试题及答案一、选择题1. 在Linux系统中，以下哪个命令用于查看当前目录下的文件和文件夹？A. lsB. pwdC. cdD. mkdir答案：A2. Windows系统中，哪个服务负责DNS解析？A. DHCPB. DNSC. WINSD. IIS答案：B3. 在网络中，以下哪个协议用于域名解析？A. HTTPB. FTPC. DNSD. SMTP答案：C二、填空题4. 在Linux系统中，使用________命令可以查看当前系统的运行时间。

答案：uptime5. Windows系统中，________服务负责网络文件和打印机共享。

答案：Server6. 在网络中，________协议用于电子邮件传输。

答案：SMTP三、简答题7. 请简述什么是DNS服务，并说明其作用。

答案：DNS服务，即域名系统服务，是一种将域名和IP地址相互映射的服务，它允许用户使用易于记忆的域名来访问互联网上的资源，而不必记住复杂的IP地址。

8. 请解释什么是RAID，并简述其主要类型。

答案：RAID是Redundant Array of Independent Disks的缩写，即独立磁盘阵列的冗余。

它是一种将多个硬盘驱动器组合成一个逻辑单元的数据存储虚拟化技术，以提高数据的可靠性、性能或容量。

主要类型包括RAID 0（条带化）、RAID 1（镜像）、RAID 5（带奇偶校验的条带化）等。

四、计算题9. 给定一个IP地址192.168.1.10，子网掩码为255.255.255.0，请计算该IP地址所在的网络地址。

答案：网络地址为192.168.1.010. 如果一个网络使用子网掩码255.255.255.192，计算该网络中的最大主机数。

答案：最大主机数为62五、案例分析题11. 假设你是一名IT运维工程师，公司网络出现间歇性断网问题，请列出可能的原因及排查步骤。

答案：可能的原因包括但不限于：- 网络设备故障（如路由器、交换机）- 网络配置错误（如路由配置、DNS设置）- 物理连接问题（如网线损坏、接触不良）- 网络攻击（如DDoS攻击）排查步骤：- 检查网络设备状态和日志- 验证网络配置是否正确- 使用网络诊断工具（如ping、traceroute）测试网络连通性- 检查物理连接，必要时更换网线或接口- 如果怀疑是网络攻击，检查安全设备日志并采取相应措施六、编程题12. 编写一个简单的Python脚本，用于列出指定目录下的所有文件和文件夹。

It用法专项练习

It用法专项练习It 用法专项练习It is / was + 被强调部分+that / who…It is / was not until … that…若强调谓语：do / does / did + 动词原形What… is / was …被强调部分…（主语从句引导的强调句型）特殊疑问词+ is / was + it + that …1. It is imagination ______ makes the world colorful, full of vigor and vitality.A. whereB. whatC. thatD. when2. It _____ we had stayed together for a couple of weeks ______I found we had a lot in common.A. was until; whenB. was until; thatC. wasn’t until; whenD. wasn’t unt il; that3. It is not who is right but what is right __________ is of importance.A. whichB. itC. thatD. this4. It was ___ back home after the experiment .A. not until midnight did he goB. until midnight that he didn’t goC. not until midnight that he wentD. until midnight when he didn’t go5. Was it because he was ill _________ he asked for leave?A. andB. thatC. that’sD. so6. It was __________ I met Mr Green in Shanghai.A. many years thatB. many years beforeC. many years ago thatD. many years when7. __________ is not everybody ___________ can draw so well.A. It, allB. It, thatC. There, whoD. There, that8. ----Was it two months ago you luckily got an opportunity to spend your holidays in Spain?----______ . John was the lucky dog.A. when; Not reallyB. that; Not meC. that; YetD. when; Not I9. ---- that he managed to get the information? ----Oh, a friend of his helped him.A. Where was itB. What was itC. How was itD. Why was it10. When was ___________ that the general manager left forJapan?A. heB. itC. thatD. since11. Was ____________ that I saw last night at the concert?A. it youB. not youC. youD. that yourself12. I was disappointed with the film I have expected ______ to be much better.A. thatB. thisC. oneD. it13. I don’t think _______ possible to master a foreign language without much memory.A. thisB. thatC. itD. its14. Is _______ possible to fly to the moon in a spaceship?A. nowB. itC. manD. that15. –Who’s there? –It’s me. ________ else could ________ be?A. Who; itB. Who; IC. What; ID. Whose; it主谓一致专项练习1. More than one answer _________ to the question.A. had givenB. were givenC. has been givenD. have been given2. Many a student ______ that mistake before.A. had madeB. has been madeC. have madeD. has made3. The number of the people who ______ cars _______ increasing.A. own….areB. own…isC. owns…isD. owns…are4. A number of students _______ gone for an outing. The number of the students ______increasing year.A. have; hasB. is; haveC. has; haveD. have; is5. My blue trousers ______ worn out. One pair of trousers ______ not enough.A. is; areB. are; areD. are; is6. My father, together with some of his old friends, _______ there already.A. will beB. had beenC. has beenD. have been7. My family as well as I _______ glad to see you.A. wasB. isC. areD. am8. Grandpa Wang and his two grandsons ______ taking a walk in the park now.Grandpa Wang, together with his two grandsons, ____ taking a walk in the park now.A. are; areB. is; areC. is; isD. are; is9. The pair of shoes _______ worn out.A. had beenB. have beenC. wereD. was10. There are two roads and either _______ to the station.A. is leadingB. are leadingC. lead11. There _______ priceless jewellery on display at the exhibition hall.A. areB. haveC. isD. has12. There is _______ rice.A. fewB. a fewC. manyD. a great deal13. There _______ in this room.A. are too many furnituresB. are too much furnitureC. are too much furnituresD. is too much furniture14. A professor and a writer _______ present at the meeting.A. had beenB. wereC. isD. was15. Each boy and each girl _______ a new book.A. have goneB. has goneC. have gotD. has got16. Ten minutes ______ enough.A. areB. isD. were17. His family ______ all very well. His family _______ a “ five good” one.A. are; isB. is; isC. are; areD. is; are18. The police ________ a prisoner.A. are searched forB. is searchingC. are searching forD. is searching for19. Politics ________ one of the subjects that I study.A. areB. isC. wereD. was20. Every means ________ been tried since then.A. hasB. haveC. areD. is21. The news at six o’clock _____ not true. Those pieces of news _____ to be broadcasted.A. are; isB. are; areC. is; areD. is; is22. The United Nations _______ in 1945.A. was foundB. was foundedC. were foundedD. were found23. The Arabian Nights __________ well known to English lovers.A. is beingB. areC. wereD. is24. – Are the two answers correct? – No, ______ correct.A. no one isB. both are notC. neither isD. either is not25. Nobody but Jane ______ the secret.A. knowB. knowsC. have knowD. is known26. No one but Jane ______ the secret. Nobody but Mary andI ____ in the classroom at that time.A. know; wasB. knows; wasC. know; wereD. knows; were27. I know that all _______ getting on well with her.A. wereB. areC. isD. was28. All that can be eaten ______ eaten up.A. have beenB. had beenC. has beenD. are being29. Half of the material _______ away.A. has been takenB. are takenC. have been takenD. were taken30. The rest of the novel ________ very interesting.A. seemB. isC. areD. were31. Deer ________ faster than dogs.A. will runB. are runningC. runsD. run32. This sheep ______ mine and those sheep ______ mine, too.A. is; isB. is; areC. are, isD. are; are33. Nine plus three _______ twelve.A. are makingB. is makingC. makeD. makes34. Over 80 percent of the population _______ workers.A. will beB. areC. isD. was35. One and a half bananas ______on the table.A. are leftB. is leftC. have leftD. has left36. one sixth of our classmates _____ from peasant families. One fifth of her time ____ devoted towriting.A. comes; isB. come; areC. come; isD. comes; are37. Only 10 percent of the students in the class _____ League members. About 40% of Jim’sincome ________ to the rent (租金).A. are; goesB. are; goC. is; goesD. is; go38. The population of the earth _____ increasing fast. One third of the population here _____workers.A. is; areB. is; isD. are; are39. There ________ a knife and fork on the table.A. areB. is seeming to beC. seem to beD. seems to be40. The rich ______ not always happy.A. isB. areC. wasD. were41. The beautiful _______ pleasure to all of us.A. giveB. gaveC. givesD. given42. Those who ________ singing may join us.A. is fond ofB. enjoyC. likesD. are liking43. I, who ________ your good friend, will share your joys and sorrows.A. wasB. areC. isD. am44. Who _____ the girl singing in the next room? Who ______ these people over there?B. are; isC. is; areD. is; is45. He is one of the boys who ________ never late for school. He is the only one of the boys who________ never late for school.A. is; areB. are; areC. are; isD. is; is46. It is this teacher who ______ leaving for London. It is you who ____ next.A. are; areB. is; areC. are; isD. is; is47. There ______ lots of rice here.A. isB. areC. hasD. have48. There ______ a lot of books here.A. isB. areC. hasD. have49. Here _____ some advertisements about English language training from newspapers.A. isB. areC. hasD. have50. On the wall ______ two large portraits.A. hangsB. hangC. hangedD. hanging。

it专项练习

• A. some B. any C. that D. those
• 3. The hunter’s younger sister is taller than the elder _B__.
• A the one B one C that D this
• 4. I need the plastic bags, not the paper__B____ .
• A.before B.after C.since D.when
• 10. ①___B__ being fine, we decided to walk to the park. • ②__C____ being no bus, we decided to walk home.
• A. This B. It C. There D. That
C • 21.Our food and service are better than ________ used to be.
• A．it B．that C．they D．those
C • 22.I’m moving to the countryside because the air there is much fresher than _____ in the city.
• A.do B.to do C.doing D.done
• 7.①It's time that we _B___ to school.
• ②It is the second time that we __C___ to Beijing.
• A.go B.went C.have been D.had been
it用法专练
一．替代词it, that, (the) one(s), those的用法辨析

大学生计算机三年级解决问题专项练习大全

大学生计算机三年级解决问题专项练习大
全
本文档为大学生计算机专业三年级的学生提供解决问题的专项练。

以下是一些有用的练和技巧，可以增加方法和技能。

第一部分：编程基础
练一：变量和数据类型
- 编写一个程序，将两个整数相加。

- 编写一个程序，使用算术运算符计算两个浮点数之间的差异。

练二：循环和判断语句
- 编写一个程序，使用循环结构计算0-100之间所有偶数的和。

- 编写一个程序，使用判断语句判断一个数是否为质数。

第二部分：设计和开发问题
练三：算法开发
- 实现冒泡排序算法，可以对数组进行排序。

- 实现二分查找算法，对有序数组进行查找。

练四：软件开发
- 设计并实现一个简单文本编辑器。

总结：
以上练和技巧可以帮助大学生计算机专业三年级的学生提高解决问题的能力和技巧。

通过练和实践，可以更好地掌握编程基础、算法开发和软件开发等方面的知识。

同时，还可以提高学生的动手能力和创新能力。

itstimetodo练习题

itstimetodo练习题一、计算机基础知识1. 请列举出计算机硬件的五大基本组成部分。

2. 解释计算机操作系统的概念及其作用。

3. 简述计算机网络的分类及其特点。

4. 描述TCP/IP协议的工作原理。

5. 请解释什么是云计算，以及它的主要应用场景。

6. 简述大数据的定义和特点。

7. 请列举出三种常见的编程语言及其特点。

二、数据结构与算法1. 请解释什么是线性表，并列举出三种线性表的存储结构。

2. 描述二叉树的基本性质及其遍历算法。

3. 简述排序算法的类别，并说明冒泡排序和快速排序的原理。

4. 请解释什么是图的邻接矩阵和邻接表表示法。

5. 描述哈希表的概念及其查找和插入操作。

6. 请列举出三种常用的查找算法及其时间复杂度。

7. 简述动态规划的基本思想及其应用。

三、前端开发1. 请列举出HTML标签的常用属性。

2. 描述CSS盒模型的构成及其应用。

3. 简述JavaScript的基本语法及其数据类型。

4. 请解释什么是DOM，以及如何使用JavaScript操作DOM。

5. 描述响应式设计的概念及其实现方法。

6. 请列举出三种常见的Web前端框架及其特点。

7. 简述AJAX的工作原理及其应用。

四、后端开发1. 请解释什么是服务器端编程，以及常见的后端编程语言。

2. 描述HTTP协议的工作原理及其请求方法。

3. 简述RESTful API的设计原则及其应用。

4. 请列举出三种常见的数据库管理系统及其特点。

5. 描述数据库的三大范式及其作用。

6. 请解释什么是MVC架构，以及其在Web开发中的应用。

7. 简述缓存的概念及其在Web开发中的应用。

五、网络安全1. 请解释什么是网络安全，以及常见的网络攻击手段。

2. 描述数字签名的概念及其作用。

3. 简述SSL/TLS协议的工作原理及其应用。

4. 请列举出三种常见的加密算法及其特点。

5. 描述网络防火墙的概念及其工作原理。

6. 请解释什么是DDoS攻击，以及如何防范。

IT基础知识练习题(2019)(一)(附答案)

IT基础知识练习题（2019）（一）1.对于同一个模式可以有任意多个（）。

DA B C D模式内模式模式和内模式外模式2.数据库系统的特点是（）、数据独立、减少数据冗余、避免数据不一致和加强了数据保护。

AA B C D数据共享数据存储数据应用数据保密3.数据库系统的核心是（）。

BA B C D数据库数据库管理系统数据模型软件工具4.以下不属于数据库系统组成的是（）。

DA B C D硬件系统数据库管理系统及相关软件数据库管理员(DBA)文件系统5.数据库系统的简称是（）。

DA B C D DB DBA DBMS DBS6.数据库管理员的简称是（）。

BA B C D DB DBA DBMS DBS7.数据库管理系统的简称是（）。

CA B C D DB DBA DBMS DBS8.数据库的简称是（）。

AA B C D DB DBA DBMS DBS9.关于数据库三级模式结构描述正确的是（）。

CA B C D内模式也称逻辑模式或概念模式。

模式是保证数据安全性的一个有力措施。

数据库系统的三级模式结构是指模式、外模式和内模式。

模式也称用户模式。

10.数据库(DB)、数据库系统(DBS)和数据库管理系统(DBMS)三者之间的关系是（）。

AA B C DDBS包括DB和DBMS DDMS包括DB和DBS DB包括DBS和DBMS DBS就是DB，也就是DBMS11.在数据管理技术中，与文件管理系统相比，（）不是数据库系统的优点。

AA B C D数据结构化访问速度快数据独立性冗余度可控12.在数据管理技术的发展过程中，经历了人工管理阶段、文件系统阶段和数据库系统阶段。

在这几个阶段中，数据独立性最高的是（）阶段。

AA B C D数据库系统文件系统人工管理数据项管理13.下述关于数据库系统的正确叙述是（）。

AA B C D数据库系统减少了数据冗余数据库系统避免了一切冗余数据库系统中数据的一致性是指数据类型一致数据库系统比文件系统能管理更多的数据14.下列关于数据库的说法错误的是（）。

小学计算机专项训练

小学计算机专项训练1. 简介本文档旨在提供小学计算机专项训练的指导和建议。

计算机技能在现代社会中起着越来越重要的作用，因此，帮助小学生建立计算机基础是非常有意义的。

2. 训练内容2.1. 计算机基础知识首先，小学生需要掌握一些计算机基础知识。

这包括了解计算机硬件和软件的基本概念，了解计算机的操作系统和常见的应用程序。

2.2. 键盘操作键盘操作是使用计算机的基本技能之一。

小学生应该学会正确地使用键盘，包括按键的位置和功能，以及如何输入和编辑文本。

2.3. 鼠标操作鼠标是另一个基本的计算机操作工具。

小学生应该学会使用鼠标来点击、拖动和放置图像、文本和其他元素。

2.4. 基本软件应用小学生可以研究一些基本的软件应用，如文字处理软件、幻灯片制作软件和图像编辑软件。

这样他们可以在计算机上完成一些简单的文档编辑、演示和图像处理任务。

3. 训练方法3.1. 课堂教学计算机专项训练可以在课堂上进行。

老师和学生可以一起研究和实践计算机技能。

老师可以通过示范和指导来帮助学生掌握操作技巧和应用程序的使用方法。

3.2. 电脑实验室学校可以配备电脑实验室，让学生在实际的计算机环境中进行训练。

这样可以提供更好的研究体验，并让学生更加熟悉计算机的使用。

3.3. 在线教育资源互联网上有许多针对小学生的计算机教育资源，如在线教程、互动研究游戏等。

教师和家长可以利用这些资源来帮助学生进行自主研究和巩固知识。

4. 训练效果评估为了评估小学计算机专项训练的效果，可以采用以下方法：- 定期进行知识测试，考察学生对计算机基础知识的理解程度。

- 观察学生在实际操作中的表现，包括键盘和鼠标操作的准确性和熟练度。

- 评估学生使用基本软件应用完成任务的能力。

5. 结论通过小学计算机专项训练，可以帮助学生掌握基本的计算机技能，提高他们在现代社会中的竞争力和适应能力。

学校和家庭应该共同努力，为孩子们提供良好的计算机教育环境和资源。