初中宾语从句专项练习
- 格式:ppt
- 大小:203.00 KB
- 文档页数:24
宾语从句知识全解1. 宾语从句的理解常见的宾语有两种情况,一是名词或代词,二是介词+名词或代词(介宾)如:I miss you/my friend (其中you/my friend 就是代词/名词)He is looking at me/my face (其中at me/my face 介词+名词或代词) 结论:一般情况下,宾语都是一个词/介词+一个词 在观察以下句子 I don ’t know you (原来是一个词当宾语)I don ’t know if you are right (现在是一个句子)结论:将宾语变为一句话的句子就是宾语从句2. 宾语从句的判断思考:英语句子有很多!怎么判断哪些是宾语从句呢?技巧:常见的宾语从句情况有两种结论:记住两种情况一是动词+句子,二是介词+句子,两种即为宾语从句3. 宾语从句的引导词的理解思考:宾语从句为什么需要引导词?不用引导词不是更加简单?语言的作用是用简洁清晰表达想表达的,为什么要加引导词增加复杂程度?我们对比以下两个句子,找一下答案:I don ’t know he is a student.(先不考虑可以省略的情况)(对于一个句子只有一个动词的原则,这里出现了两个动词,一个句子不可能出现两个动词,而又没有连接词,容易让读者产生误会,认为这句话有语法错误。
)I don ’t know that he is a student.(整个句子虽然有两个动词,但是因为第二个句子开头有一个引导词“that ”(其作用相当于连接词)连接,符合一个句子一个动词原则即,句子+连接词+句子)结论:引导词有代替连接词的作用,可以帮助读者理解句子的结构动词+句子I don ’t know if you are right. 介词+句子 We are talking about if it will rain tomorrow. 宾语从句1.判断以下句子哪个是宾语从句()A.Teacher told that the sun is bigger than the moon to us.B.I have hated him since I was five.C. The children go to school by car every day.D.I met the man who is my friend’s uncle yesterday at school.解析:根据一是动词+句子,二是介词+句子的两种情况,只有A选项符合以上的情况。
(英语)初中英语宾语从句专项训练100(附答案)含解析一、初中英语宾语从句1.Which of the following sentences is correct?_A.Could you tell me how I could deal with it?B.Celia got out of her house, it started to rain.C.I spent lots of time listening to English songs.D.With the help of the map, they reached to the mountain in the end.【答案】C【解析】【详解】句意:A.你能告诉我该怎么处理这个问题吗?B.西莉亚出门时开始下雨。
C.我花很多时间听英语歌曲。
D.在地图的帮助下,他们终于到达这座山。
考查宾语从句、动词短语。
A是宾语从句,Could you tell me …“你能告诉我……”could是委婉表达请求,不是过去式,因此从句不必用过去式;B缺少连词as;D. reach 是及物动词,后面不能接介词to ;故选C。
2.—What else did Tina ask you about the trip to Nanjing?—She asked me ______.A.who was the guide of the tripB.when they will visit the Presidential PalaceC.how long would they stay at Nanjing MuseumD.if she can go to Nanjing University alone on the second day【答案】A【解析】试题分析:句意为:---关于南京之行蒂娜还问了你什么事?---她问我谁是旅行的导游。
根据语境可知,这是一个宾语从句,应用陈述句语序。
完整版)初中宾语从句练习题及答案1.I don't know whether he will come tomorrow。
If he comes。
I'll tell you.2.I don't know whether he'll come the day after tomorrow.3.Could you tell me where the XXX?4.Could you tell me how he mended the。
without any help?5.I want to know whom she is looking after.6.Do you know where he lives now?7.Do you know what time the train leaves?8.I don't know。
Can you tell me。
please?I。
文章改写1.How old are the two players?2.What is in their stockings?3.What does Christmas mean?4.The two players are how old?改写后的文章:1.The age of the two players is unknown.2.The small children are unaware of the XXX.3.The meaning of Christmas is unclear to me.4.Can you tell me how old the two players are?II。
句型转换1.Could you tell us if Mr。
Brown enjoys living in China?2.He asked me if the girl needed any help.3.XXX Jim nor Tom is a student.4.I want to know when the train leaves.5.They XXX't go home until they had XXX.A。
初中宾语从句练习一.选择题(共40小题)1.﹣I seem to be lost.Could you tell me ______________﹣Sure.You can take bus get there()A.where is Ge GardenB.how long it will take me to the Yangzhou﹣Taizhou AirportC.how I can get to the Slender West LakeD.how far is my trip to the museum in Yangzhou2.﹣﹣Hi,Amy,you live on Center Street.Can you tell me _____[﹣﹣Sure.There is one called Grandma's Home.()A.where it isB.how I can get thereC.if there is a restaurant on it3.﹣Do you know﹣Oh,she lives in London.()A.where does Jane live B.where Jane livesC.where Jane lived4.﹣﹣﹣Could you tell me _______﹣﹣﹣Yes,she _________ to the reading room.()A.where is Jane,has been B.where Jane is,has gone~C.where was Jane,has been D.where Jane was,has gone5.﹣Excuse me,I want to go to the 21st National Book Expo (世博会).Could you tell me______﹣Sure.It is at Road in Harbin.()A.where it is B.where it was C.where is it6.﹣﹣Why did Miss Wang look so worried when we saw her﹣﹣Because she wondered _______.()A.where did the other students goB.what her students have done during the tripC.when would the students comeD.whether her students had won the match-7.﹣Tom!Look at the man in black over there.Can you tell me ________﹣Oh!He is my friend,Jim.()A.what he is B.who he is C.how he is8.﹣﹣﹣I'm going to give a talk on the Dragon Boat Festival to the exchange students.﹣﹣﹣Great!But don't forget to tell them______.()A.what should they eat at the festivalB.why people enjoy the full moonC.what kind of race is often heldD.How do people celebrate it9.Could you please tell me _______()|A.what's wrong B.How did he get thereC.what wrong is D.what is this10.﹣Will you please show me _____this new machine﹣It's a piece of cake.Now let me tell you what to do first.()A.can I how operate B.I can how operateC.how can I operate D.how I can operate11.﹣Do you know _______ the iPad last week﹣Sorry,I have no idea.()A.how much did she pay forB.how much she paid for$C.how much will she pay forD.how much she will pay for12.﹣Could you please tell me _____﹣Yes,sure.()A.if there is a bookshop near hereB.where can I buy a stampC.when will the next bus arriveD.you like to eat what13.Could you please tell me___()A.what time you usually get up!B.what time do you usually get upC.what time did you get upD.what time will you get up14..﹣What did she say just now﹣She asked __________.()A.that I liked English bestB.what is wrong with meC.where was the nearest hospitalD.if I would go shopping with her15.The exchange students will leave soon.We had better ask our monitor __________ a farewell party.()\A.when will we have B.when we will haveC.when we would have D.when would we have16.﹣Could you please teach me ______ to give out"Red enve/ope"(红包) on WeChat﹣Sure.Let me show you.()A.how B.why C.when D.where17.─Granny,the school trip was very exciting but a little tiring.─Oh,could you tell me ______()A.how did you go to the parkB.what you did during the tripC.that you saw something beautiful(D.if your friends had played with you18.﹣﹣I'd like to know﹣﹣﹣Maybe in the forest.()A.whether we will go campingB.where we will go campingC.whether will we go campingD.where will we go camping19.﹣Could you please tell me _______﹣﹣Sure.It means face to face.()A.if F2F stands for in a text message—B.what did F2F stand for in a text messageC.whether F2F stood for in a text messageD.what F2F stands for in a text message20.﹣Could you tell me _______﹣At 9:40this Sunday.()A.what I should takeB.who you are coming withC.where you are waitingD.what time you are arriving21.﹣Could you please tell me】﹣Sure.There is a supermarket down the street.()A.where will I buy some medicineB.where did I buy some medicineC.where I can buy some medicine22.﹣Excuse me,could you tell me﹣Yes,I bought them in Xinhua Bookshop.()A.where you bought the booksB.where did you buy the booksC.how you bought the booksD.how did you buy the books@23.﹣Could you tell me﹣He is very tall and strong.()A.what does Mr.White look likeB.what Mr.White looks likeC.what did Mr.White look likeD.what Mr.White looked like24.﹣Could you tell me _____﹣At the end of July.()A.how often he heard from his pen palB.how soon he will be here~C.that he went on vacationD.when you will start your vacation25.﹣Do you know_______tomorrow﹣Sorry,I don't know.You may surf the internet.()A.whether will it rain B.if it will rainC.whether does it rain26.The teacher asked me ______.()A.why do I come late B.why I come lateC.why I came late D.why did I come late27.﹣﹣﹣We can use MSN to talk with each other on the Internet.;﹣﹣﹣ReallyWill you please show me____()A.how can I use B.how I can useC.how can I use it D.how I can use it28.﹣Excuse me,could you tell me ________﹣Sure,Bus take you right there.()A.where is Nanjing MuseumB.how can I get to Nanjing MuseumC.which bus I shall take to Nanjing MuseumD.how far it is from here to Nanjing Museum29.I don't remember _______ the book yesterday.()~A.where I bought B.where I did I buyC.where will I buy D.where I will buy30.﹣﹣﹣Could you please tell me you will go to HongKong on business﹣﹣﹣Sure.I prefer to take a plane.()A.whether B.why C.when D.How31.The policeman asked the lost girl _________ so that he could take her home.()A.where did she live B.where she livedC.where is she living D.where she lives32.Read!Books will show you _____.()A.what is the outside world like;B.how beautiful is the worldC.what creates real beautyD.how do you like beauty33.﹣Could you tell me ﹣It's next to the post office.()A.where was the bank B.where the bank wasC.where is the bank D.where the bank is34.﹣Could you tell me_______﹣Perhaps on March 8.()A.when will MH370 be lost B.where MH370 was lost.C.when MH370 was lost.D.where was MH370 lost.{35.﹣﹣﹣Could you tell me_______﹣﹣﹣My cousin.He works as a policeman in the police station.()A.who the man in white is B.who is the man in whiteC.what the man in white is D.what is the man in white36.﹣﹣﹣Dad,do you know ________________ now﹣﹣﹣In Fort Middle School.()A.where Betty is studying B.where did Betty studyC.where is Betty studying D.where Betty studied37.Could you please tell me __ ____()A.when will they arrive tomorrowB.when they arrive tomorrowC.when they will arrive tomorrowD.when do they arrive tomorrow38.So,can you tell me____ here todayWell,I was walking down the street when the accident happened.()A.what did you see B.what you sawC.when did you see it D.when you saw39.﹣I'm new here.Could you tell me________﹣Sure.It's over there behind that tower.()A.where the youth center is:B.when the library opensC.how far is the parkD.how can I get to the railway station40."Could you please tell me_________""It's next to the hotel."()A.where is the museum B.the museum is whereC.where the museum is初中宾语从句练习参考答案与试题解析$一.选择题(共40小题)1.﹣I seem to be lost.Could you tell me ______________﹣Sure.You can take bus get there()A.where is Ge GardenB.how long it will take me to the Yangzhou﹣Taizhou AirportC.how I can get to the Slender West LakeD.how far is my trip to the museum in Yangzhou【分析】﹣﹣我好像迷路了.你能告诉我我怎么能去瘦西湖吗﹣﹣当然,你可以搭5路公交车去那儿.^【解答】答案:C.根据Could you tell me,可知本句考查了宾语从句的用法.在宾语从句中所使用的语序应该是陈述句语序,选项AD是疑问句语序,排除掉.再根据You can take bus get there,可知这里表示乘坐某种交通工具,提问方式的话应该用how.故选C.【点评】宾语从句是中考英语常考的语法点,特别是宾语从句中要用陈述语序,这一点是每年必考的内容.除了要注意宾语从句要用陈述句语序外,还要注意时态的问题,主句谓语动词如果是现在时或将来时,宾语从句的时态可以是任何所需要的时态;主句中的谓语动词若是过去时,宾语从句也要用过去时态中的某一种.2.﹣﹣Hi,Amy,you live on Center Street.Can you tell me _____﹣﹣Sure.There is one called Grandma's Home.()A.where it isB.how I can get thereC.if there is a restaurant on it【分析】﹣﹣你好,艾米,你住在中心大街,你能告诉我在这条街上是否有餐馆.﹣﹣当然可以,有一个餐馆叫祖母的家.【解答】答案:C.根据Can you tell me 再结合选项,可知Can you tell me后面是跟一个宾语从句,宾语从句中应该用陈述语序,即主语+谓语.再根据you live on Center Street.是说要问的地方在这条街上,再根据There is one called Grandma's Home,可知这里是指的是否有一家餐馆的事情.故选:C.【点评】主要考查宾语从句,一定要注意宾语从句的引导词,以及宾语从句的时态和语序问题.把握好这几点,是做好此类题目的关键!3.﹣Do you know﹣Oh,she lives in London.()A.where does Jane live B.where Jane livesC.where Jane lived【分析】﹣﹣你知道Hane在哪里住的吗。
【英语】初中英语宾语从句专项训练100(附答案)一、初中英语宾语从句1. --Is Tom still in New York or already back at home?--I’m not sure ________. I’ll call to make sure.A.how he will be back B.that he has come backC.why he has come back D.if he has been back【答案】D【解析】试题分析:句意:—汤姆仍在纽约呢还是已经回到家了?—我不知道他是否已经回来。
我打个电话核实一下。
A. how he will be back 他如何回来;B. that he has come back他已经回来了;C. why he has come back 他为什么已经回来了; D. if he has been back他是否已经回来。
根据语境及选项意思,故选D。
考点:考查宾语从句。
2.---Judy, do you know_______? ---Sure, two days.A.when did the sports meeting beginB.where the sports meeting was heldC.how often the sports meeting is heldD.how long the sports meeting will last【答案】D【解析】试题分析:句意:朱迪,你知道运动会将持续多长时间吗?当然,两天。
在宾语从句中只能使用陈述句语序,不能使用疑问句语序,结合答语中Sure, two days.可知该选D。
考点:考查宾语从句的用法3.一Could you please tell me ?一In two hours.A.how long will your father be back B.how long your father will be back C.how soon your father will be back D.how soon will your father be back【答案】C【解析】句意:一你能告诉我你爸爸多久会回来吗? 一两个小时后。
初中宾语从句练习题及答案从下列A、B、C、D中选择一个正确选项填空.I. 1 don't know ________ he will come tomorrow. _________ he comes, I'll tell youA. if; WhetherB. whether; WhetherC. if; ThatD. if; If2. I don't know ________ the day after tomorrow.A. whe n does he comeB. how will he comeC. if he comesD. whether he'll come3. Could you tell me ________ the n earest hospital is?A. whatB. howC. whetherD. where4. Could you tell me ________ the radio without any help?A. how did he mendB. what did he mendC. how he men dedD. what he men ded]5. I want to know ________ .A. whom is she look ing afterB. whom she is look ingC. whom is she look ingD. whom she is look ing after6. Do you know where ________ now?A. he livesB. does he liveC. he livedD. did he live7. Do you know what time ________ ?A. the train leaveB. does the train leaveC. will the train leaveD. the train leaves8. I don't know ________ . Can you tell me, please?A. how the two players are oldB. how old are the two playersC. the two players are how oldD. how old the two players are9. The small childre n don't know ________ .A. what is their stock ings inB. what is in their stock ingsC. where is their stock ings inD. what in their stock ings10. I can't un dersta nd ______ .A. what does Christmas meanB. what Christmas does meanC. what mean Christmas doesD. what Christmas meansII. 按要求转换句型.1. Does Mr. Brown enjoy living in China? Could you tell us? (改写句子)T Could you tell us __________ Mr. Brow n ________ livi ng in Chi na?2. "Does the girl need any help? he asked”e.(变为复合句)T He asked me __________ the girl ________ some help .3. Jim is not a student. Tom is not a student, either.(合并为一个句子)__________ 』m ________ Tom is a stude nt.4. When does the train leave? I want to know.(改为含宾语从句的复合句)I want to know ________ the train _________ .5. They went home after they had finished their homework.(用not. .. until 改写)They ________ go home _________ they had finished their homework .6. Did Peter come here yesterday? Li Lei wants to know.(改为含宾语从句的复合句)Li Lei wan ts to know _______ Peter__________ h ere yesterday.宾语从句专项训练参I. 1 —5DDDCD 6 —10ADDBD11. 1. if / whether; enjoys 2. if /whether; needed 3. Neither; nor 4. when; leaves5. did n't; unti6. whether; came习题(一)1 The girls asked if they ___ some food and drink with them.A. tookB. takeC. takesD. will take2 Catheri ne said that she _ to Guan gzhou.A. has n ever goneB. had n ever goneC. has n ever bee nD. had n ever bee n3 The stude nts want to know whether they __ dictio nary today.A. hadB. hasC. will haveD. are4 She asked Linda if _ go and get some.A. could sheB. she couldC. she canD. she may5 Linda said the moon __ round the earth.A. travelledB. has travelledC. travellsD. had travelled答案:1-5 A D C B C习题(二)1 Can you tell me __ you were born, Betty?A. whoB. whatC. whenD. that |2 I don't know ___ t hey have passed the exam.A. whatB. ifC. whenD. where3 I hardly un dersta nd. _ he has told me.A. thatB. whatC. whichD. who4 She did n't know _ back soon.A. whether he would beB. if would he beC. he will be5. I don't know ____ he still lives here after so many years.A. whether B where C. what D. whe n6. Do you know ___ they liste ned to yesterday evening?A. what B whe n C why D how7. He asked me ___ told me the accide nt.A whomB whichC whoD whose答案:1-7 C B B A A A C习题(三)1. They don't know _____ their pare nts are.A thatB whatC whyD which2. Please tell me ____ what last year.A. where does your sister work B where did your sister workC where your sister worksD where your sister worked3. She asked me if I knew ____ .A. whose pen is itB. whose pen it wasC. whose pen it isD. whose pen was it4. You must remember ______ .A. what your mother saidB. what did your mother sayC. your mother said whatD. what has your mother said5 Did you kn ow ___ ?A. who he was look ing afterB. who was he look ing forC. who he is look ing forD. who he is look ing after6 Could you tell me __ ?A. when will they leave BeijingB. when would they leave BeijingC. when they will leave BeijingD. when did they leave Beijing 答案:1-6 B D B A A C习题(四)1. In the bookshop, a reader asked the shop keeper ________ Who Moved My Cheese was an in teresti ng book.(北京市东城区)A. thatB. howC. whatD. if2. —I don't know ____ Mr. Gree n will come to see us.—He will help us with our En glish. (杭州市)A. whyB. whe nC. howD. where3. —We n ever know __ the old man is.—They say he is a teacher.(鄂州市)A. whatB. whoC. whichD. where4. I was told ____ B ill Gates was thirtee n he bega n to play with computers. (重庆市)A. that howB. how thatC. when thatD. that when5. —Do you know ___ ? rm going to see him.—Sorry, I don't know.(北京市海淀区)A. where does Mr. Li liveB. where did Mr. Li iveC. where Mr. Li livesD. where Mr. Li lived6. —W here do you thi nk ____ he ____ the computer?—Sorry, I have no idea. (南京市)________________A. /; boughtB. has; boughtC. did; buyD. does; buy7. I don't feel very well. Mum asked me ____ this morning. (重庆市)A. what the matter isB. what is wrong ____C. what the matter wasD. what wrong was8. —Where is Jack? I—He is away to spe nd his holiday. He's gone either to Han gzhou or to Wuha n, but rm not sure .(南昌市)A. thatB. whichC. whereD. there 答案:1 —4 D A A D 5 —8 C A C C一•将下面的句子连接成含有宾语从句的复合句。
人教版初中英语宾语从句练习题40题含答案解析1. She asked me ____.A. where was the post officeB. where the post office wasC. where is the post officeD. where the post office is答案解析:B。
在宾语从句中要用陈述语序,即主语在前,谓语在后。
A和C选项都是疑问句语序,不符合宾语从句的语序要求。
而主句的谓语动词asked 是一般过去时,宾语从句的时态要和主句保持一致,所以要用一般过去时,D选项时态错误。
2. I don't know ____.A. what does he likeB. what he likesC. what did he likeD. what he liked答案解析:B。
宾语从句要用陈述语序,A和C选项是疑问语序,不符合要求。
主句的don't know是一般现在时,从句表达的是一般的情况,不需要用一般过去时,所以D选项错误。
3. Could you tell me ____?A. when will the train leaveB. when the train will leaveC. when would the train leaveD. when the train would leave答案解析:B。
宾语从句要用陈述语序,A选项是疑问语序,不正确。
主句的Could表示一种委婉的语气,不是过去时态,从句根据实际情况用一般将来时,C和D选项中would用法错误。
4. He wants to know ____.A. how old are youB. how old you areC. how old were youD. how old you were答案解析:B。
宾语从句应使用陈述语序,A选项是疑问语序,不符合。
主句是一般现在时,从句表达的是现在的状态,不需要用一般过去时,C和D选项错误。
宾语从句(单选题 30题含解析)初中英语专题练习1.The teacher told us _____________ the earth moves around the sun.A. whetherB. ifC. whoD. that2. I hope you do not mind my asking, but I wonder ____________ it may be possible for me to share the room with you.A. thatB. ifC. whichD. how3. You should stick to ________ you have begun.A. wheneverB. no matter whatC. sinceD. whatever 4.____ Tom didn’t go to school?A. Do you know howB. How you know whyC. Why do you knowD. Do you know why5.—Could you tell me ________ you did it so well?—With my parents’ help.A. whoB. howC. whenD. what6. I never doubt _________ his advice is of great value to me.A. thatB. whetherC. howD. what7.—The project is so difficult for your cousin.—Yes, I am wondering ___________.A. that he will finish it on time.B. how could I help him outC. whether he can finish it by himselfD. if can I do anything for him8.The boy who was curious about everything asked his father ________.A.how life would be like in the year 2100B.which room he would live in the hotelC.how he called the man in a black suitD.if Shakespeare was a great writer of English literature9.—Do you believe _____________ man can live on Mars in the future.—It’s hard to say. Scientists are still not sure _____________ we can grow plants on Mars.A. if;thatB. whether;ifC. that;thatD. that;whether10.—Could you please tell me _____________?—Let me see. In twenty minutes.A. how often you go to your grandpa’s houseB. how soon the meeting will beginC. how long it takes from your home to school11.—Excuse me, can you tell me ________?—Sure. It’s next to the bo okstore.A.where is the bank B.where the bank is C.how is the bank D.how the bank is 12.—Excuse me, I wonder __________ the plane can land on time.—Wait a minute, please. Let me check it out.A.if B.which C.that D.who13.— Could you tell me ________ now?— His mother says he is much better.A.where Will is B.what Will is C.how Will is D.who Will is14.—What did Miss Li ask?—She asked ________.A.why Tom is late again B.why is Tom late againC.Why Tom was late again D.why was Tom late again15.—How long does it take to get to the airport?—Forty minutes. But it’s foggy today. I’m not sure ________ the highway will close soon. A.whether B.when C.how D.why16.—Where do you think ________?—I guess they took it in Suzhou.A.was the photo taken B.the photo was takenC.did the photo take D.the photo took17.—It will be Tina’s turn to perform at the show soon, but I can’t find her. Do you know ________?—I met her in the washroom just now.A.where she went B.where did she go C.where she has gone D.where has she gone 18.—I just came back from Universal Beijing Resort(北京环球度假区). Can you guess ________? —I’ve no idea. But I’ve heard everything there is quite expensive.A.how many days I stayed thereB.when did I come back homeC.how much I paid for Harley Potter toys19.Students asked the scientist _________.A.how electricity gets to their house B.how does electricity get to their houseC.how electricity got to their house D.how did electricity get to their house20.The shop assistant asked me ________.A.which one will you choose B.which one would you chooseC.which one I would choose D.which one I will choose21.Could you tell me ________?A.how many students are there in your class. B.when will you leave for Beijing C.who has taken my red pen. D.how long that film started.22.I don't know ________ he will come tomorrow. ________ he comes, I'll tell you.A.if; Whether B.whether; WhetherC.if; That D.if; If23.—I wonder .—Someone who can make me a better person.A.when you often meet your friendsB.how you make your friends happyC.who you want to make friends withD.where you spend weekends with friends24.—Boy, your head teacher has set up a WeChat group. Could you tell me? —OK, I’ll teach you.It’s so easy.A.how I join itB.why he sets it upC.what it is used forD.when it was set up25.—Alice, could you tell me London?—Sure. Last Sunday.A.when Mr. Smith leftB.when Mr. Smith will leaveC.when did Mr. Smith leaveD.when will Mr. Smith leave26.—Do you know the meeting?—Tomorrow morning.A.when they hadB.when they are going to haveC.when did they haveD.when are they going to have27.—Tim, could you tell me to the U.S.?—Oh, yes. I went there last year.A.when did you goB.when will you goC.when you wentD.when you will go28.—The Shenzhou-13 manned spaceship has just come back from space. Do you know ________? —The journey lasted for six months. It shows China is making great progress in space exploration. A.where it landed on the earth B.how long it travelled in spaceC.when scientists sent it to space D.how many astronauts were in it29.—Do you know _____?—Sorry, I have no idea. I am looking for her, too.A.what is Linda B.what Linda is C.where is Linda D.where Linda is30.—Excuse me, could you wake me up if my friend _____ here?—Of course. But we still don’t know when your friend _____ .A.comes; will come B.comes; comesC.will come; comes D.will come; will come【参考答案】1. D 【解析】句意:老师告诉我们地球围绕着太阳转。
初中英语宾语从句专项练习(完整版) 宾语从句的基本讲解与练宾语从句的小口诀:时态语序和引导词,三个注意点要记清。
主句一般现在时,从句不受限制。
主句一般过去时,从句要对应。
陈述句转化用that引,一般疑问句用if/whether。
一、概念宾语从句是在句子中充当宾语的从句。
二、连接词if/whether和特殊疑问词引导的从句,从句语序为陈述句。
当陈述句转化为宾语从句时,引导词用that(在非正式场合可以省略)。
that在从句中不充当任何成分,只起连接作用。
例如:No one told Jack (that) there would be a class meeting thenext day.(没有人告诉___第二天有班会。
)Little Tom was afraid (that) he couldn't pass the exam.(小___担心这次考试不及格。
)拓展1】可跟that从句做宾语的动词有:say。
think。
wish。
hope。
imagine。
wonder。
know。
believe。
agree。
explain。
feel。
suggest。
hear。
mean。
notice等。
拓展2】当主句谓语动词是think。
believe。
suppose。
expect等词,而宾语从句的意思是否定时,常把否定转移到主句表示。
例如:I don’t think (that) he can give a ___.(我认为他不会在会上发言。
)拓展3】在think。
believe。
imagine。
suppose。
guess。
hope等动词以及I’m afraid等后,可用so代替一个肯定的宾语从句,用not代替一个否定的宾语从句。
例如:Do you ___ he will come?(你相信他会来吗?)I ___.(我相信会。
)___.(我相信不会。
)2.以whether或if引导的宾语从句主要用来引导一般疑问句或选择疑问句的意思,从句语序为陈述句。
初中英语:宾语从句专题第一部分:1-50 专项练习第二部分:51-100全面解析1.We're not sure if they the concert in two weeks. If it , they must practice hard.A.will hold, holds B.will hold, is heldC.hold, will be held D.hold, holds2.among the three top managers to work in Germany?A.Who do you suppose will the boss sendB.Who do you suppose the boss will sendC.Who you suppose the boss will send3.-- Do you know if he to play football with us?-- I think he will come if he free tomorrow.A.comes; is B.comes; will beC.will come; is D.will come; will be4.I wonder _______.A.what time is it nowB.how will we get to the airportC.whether we'll arrive at the railway station on time5.He asked I would come to his party next week.A.if B.when C.that D.what 6.—Could you please tell me ?—In a village in Guilin.A.When were you born B.When you were bornC.where you were born D.where were you born7.—I want to know if she _______ next Sunday.—If she _______, I will let you know.A.will come, will come B.comes, will come C.will come, comes 8.—Simon, you look smart in the T-shirt. Could you tell me it?—OK. I bought it in a store online.A.where you bought B.where do you buyC.when you buy D.when did you buy9.Mom, have you seen my toy bear? I don't know _____ I have left it.A.why B.when C.how D.where 10.— I wonder ____________ for the 2019 Beijing Horticultural Expo.— My school recommended me and I passed the interview.A.why did you want to be a volunteer B.how did you become a volunteer C.why you want to be a volunteer D.how you became a volunteer 11.I think everyone in our class their last weekend.A.enjoy B.enjoys C.enjoyed D.enjoying 12.—Would you like to tell me ______?—Sure. Practice makes perfect.A.why do I learn English well B.how can I study English well C.how I can study English well D.why I learn English well 13.—Could you please tell me ______?—He lives in Nanning.A.where Li Hao lives B.where Li Hao livedC.where does Li Hao live D.where did Li Hao live 14.—Could you please tell me ________?—In two weeks.A.when did he come back B.how soon will he come backC.when he came back D.how soon he will come back 15.—There're only five days left before the match. I'm not sure_________.—Don't worry! Believe in yourself and get ready for it well.A.where the match will be held B.whether I can win the matchC.who will take part in the match D.whether Anna will join the match 16.—Do you believe that humans could live on Mars?—I don't think _____________________.A.if it comes true B.that it will come trueC.why it will come true D.how does it come true 17.—Excuse me. Could you please tell me ______?—Sure. Go along this street and turn left. It's on your right.A.when I can get to the bookstore B.when can I get to the bookstoreC.how I can get to the bookstore D.how can I get to the bookstore18.I wonder ___Tom had a good time having a picnic yesterday.A.that B.if C.what D.which19.My grandmother always asks me .A.why can she use the iPad B.how can she use the iPadC.how she can use the iPad D.when can she use the iPad20.-Could you tell me _________ for class this morning?-I am sorry. Mrs. Lin. I got up so late that I couldn't catch the first bus.A.why were you late B.why you are lateC.why are you late D.why you were late21.— Could you tell me kind of movies you like best?— Umm…. I like the movies make me laugh.A.what; which B.what; whatC.which; what D.which; where22.—Could you please tell me ________—I'm not sure… about 10 kilometers.A.how long it takes to go to the parkB.how does it take to go to the parkC.how far it is from here to the parkD.how far is it from here to the park23.—I don't know if his uncle _______ .—I think he _______ if it doesn't rain.A.will come; comes B.will come; will comeC.comes; comes D.comes; will come24.— Ms Fu, would you tell me ______?— OK! You should introduce the story and make some comments on it.A.how can I write a film report B.how I can write a film reportC.what can I write a film report D.what I can write a film report25.We wonder if our foreign teacher to our graduating party next weekend. If she ,we' llbe very happy.A.will come; will come B.come; will comeC.will come; comes D.come; comes26.-- I wonder .-- It will fall on a Saturday.A.how will National Day fall on this yearB.how National Day will fall on this yearC.what day will National Day fall on this yearD.what day National Day will fall on this year27.—Will we have dinner at the Hope Restaurant?—Maybe. We'll go there if the show__________ before. But I don't know if there __________any free tables then.A.will end; were B.will end; will beC.ends; were D.ends; will be28.I'm not sure if he __________ the meeting if he ___________ next week.A.attends; comes back B.will attend; comes backC.will attend; will come back D.attends; will come back29.-- Excuse me. Could you tell me I can get to the Space Museum?-- Of course. You can take bus NO. 1.A.where B.how C.if D.why30.Tom was not listening carefully, so he failed to hear .A.what the teacher said B.how the teacher saidC.what did the teacher say D.how did the teacher say31.——Could you tell me _____ ?——Because she likes her students very much.A.why so many students like the teacherB.why do so many students like the teacherC.why did so many students like the teacherD.why so many students liked the teacher32.—Excuse me. Could you please tell me __________ my car?—Sure. Park it right here. I'll help you.A.how to park B.where to park C.when to park 33.Mike used to be a top student, but he______ behind since he lost himself in computer games.A.fell B.has fallen C.was D.has been 34.— Look at the picture on my bedroom wall!— How beautiful it is! Can you tell me________?A.where you will get it B.where will you get itC.where did you get it D.where you got it35.— Excuse me! Do you know ______________?—It's two kilometers away from here.A.where is the supermarket B.when does the supermarket open C.where the supermarket is D.when the supermarket opens 36.She asked me whose jacket .A.is it B.it is C.it was37.一Excuse me, do you know every day?—It closes at 9:00 p.m..A.when does the library close B.when will the library closeC.when the library closes D.when the library closed38.—I wonder ______ Jane gets on so well with her classmates.—Because she always cares much about others.A.whether B.how C.when D.why 39.—How's the weather tomorrow? I don't know if it ________ tomorrow.—Well, if it ______, I won't go out with you.A.will rain; will rain B.rains; rainsC.rains; will rain D.will rain; rains40.Can you tell me it will rain or not tomorrow?A.whether B.if C.that D.when 41.—I don' t know if Sam_____.—Don't worry. I will tell you as soon as he_____.A.will come, comes B.comes, will comeC.will come, will come D.comes, comes42.—Tom, do you know the population of India is?—Yes. It's more than 1.3 billion.A.what B.how C.why D.where 43.-- It's so careless of you to make a spelling mistake again.-- Sorry. I couldn’t remember .A.when I learnt the wordB.if I have learnt the wordC.where should I put the silentD.in which class did you teach the word44.I was surprised by her words, which made me know silly mistakes I had made.A.what B.that C.how D.which 45.Tony said ______ he could help me with my English.A.as if B.if C.that D.what 46.Miss Green didn't tell us _______.A.where does she live.B.why she looks so worried.C.when did she come to my party.D.how she went to work.47.He said .A.that I am a teacher B.I was a teacherC.that he is a teacher D.he was a teacher48.I am not sure _______ Maria can come here on time or not.A.when B.why C.if D.whether 49.—Could you tell me ________?—Yes, she is very careful, hardworking, kind.A.what his mother likes B.what's his mother likeC.what his mother is like D.how his mother is like 50.—What did you say to your grandmother on the phone just now?— I asked her _______.A.if is she cooking for lunch B.if she is cooking for lunchC.what did she cook for lunch D.what she cooked for lunch答案解析部分1.B2.B3.C4.C5.A6.C7.C8.A9.D10.D11.C12.C13.A14.D15.B16.B17.C18.B19.C20.D21.A22.C23.B24.B25.C 26.D 27.D 28.B 29.B 30.A 31.A 32.B 33.D 34.D 35.C 36.C 37.C 38.D 39.D 40.A 41.A 42.A 43.A 44.A 45.C 46.D 47.D 48.D 49.C 50.D初中英语:宾语从句专题第一部分:1-50 专项练习第二部分:51-100全面解析1.We're not sure if they the concert in two weeks. If it , they must practice hard.A.will hold, holds B.will hold, is heldC.hold, will be held D.hold, holds全面分析:我们不确定他们是否会在两周内观看音乐会。
U1 --- How ....? ---By doing... 考点练习: 1. ( ) ---How do you study ______ an English test? ---I study English ___ __ grammar. A. by , by learn B. for, by learning C. by , in learn D. for , in learning 2 My brother studies for an English test by listening to tapes.(提问) ________ _______ your brother ________ for an English test? U2-U3 :一。
感叹句感叹句: what a/an +adj. + n. (主语+谓语)! what +adj. +不可数名词(主语+谓语)!常考到的不可数名:music/weather/advice/news/information How +adj./adv. +主语+谓语!考点练习:()1. ______ weather it is ! We can’t go out. A. What good B. How good C . How bad D. What bad ( ) 2._______pretty the new car is ! Do you like it?A. WhatB. HowC. WhenD. Whether ()3. ______ good teacher! He always helps students deal with the problems. A . How B. What C. What a D. What an 二.宾语从句(中考必考内容,一般的题型为单选题和句型转换)宾语从句有三要素:时态:主过从过。
主现从任。
宾语从句讲练一、宾语从句的连词:1 The teacher told us she was a good girl .2 We know Taiwan attracts a number of tourists every year .3 Are you from Japan? He asked me .He asked me / I was from Japan.4 Do you like watching TV?He asked me.He asked me / I liked watching TV.5 When did he leave for China ?Could you tell me ?Could you tell me he left for China?6 Can you tell me a good place to visit ?A where there isB there is whereC where is thereD is there where总结:1当宾语从句是陈述句时,连词用(一般可省略)。
2当宾语从句是一般疑问句时,连词用。
3当宾语从句是特殊疑问句时,连词就用原来的疑,但一定要用语序。
巩固提高:1 I don’t know I can get to the station.2 I don’t know she will be back or not next Saturday.3 Could you please tell me the post office is?4 My English teacher said my spoken English was very good.5 This pair of shoes is neither beautiful nor comfortable. I don’t know you want to buy it.二、宾语从句的转换之将从句变为疑问词to-do1. She doesn’t know what she should do next.She doesn’t know ______________next.2 Will you please show me how I can work it out?Will you please show me _________it out?3 Could you tell me how I can get some shampoo?Could you tell me ___________some shampoo?三、宾语从句的语序:1 What’s Kate’s e—mail address? Do you know ?(合为一句)Do you know what ____________________________?2 Could you tell me _________?A where is the post officeB where the post office isC how can I get to the parkD how I can get to the park3 I don’t know __________.A where does he come fromB what is his nameC when will he leaveD how old he is4 Where can I buy some shampoo? Do you know ?合为一句Do you know where ____________buy some shampoo?总结:宾语从句的语序要用_______________语序,即主谓语序。
初中英语语法宾语从句选择填空专项练习含答案( ) 1. It’s so dark. I can’t find out ________ it’s a boy ________ a girl.A. if, andB. that, andC. either, orD. whether, or( ) 2. Could you tell me if he ________ to Shanghai?A. has goneB. had goneC. wentD. go( ) 3. He told me ________ she would catch the early bus.A. whichB. whetherC. whyD. that( ) 4. Mrs. Green asked me ________ I would go with her.A. whatB. whichC. whyD. that( ) 5. I don’t know ________ the coat ________ cheap enough.A. if, isB. where, wereC. that, wasD. if, were( ) 6. Can you tell me why ________ yesterday?A. you didn’t comeB. did you not comeC. didn’t you comeD. you don’t come ( ) 7. He said that they ________ Yunnan.A. have been toB. had gone toC. have gone toD. has gone to( ) 8. Jack isn’t sure ________ students there are in his class.A. how manyB. whatC. whichD. whether( ) 9. Can you tell me ________ yesterday?A. what they doB. what they didC. what do they doD. what did they do ( ) 10. I want to know ________ his homework yesterday evening.A. if he finishedB. whether he had finishedC. had she finishedD. has she finished ( ) 11. Do you know what ________ this time yesterday?A. they are doingB. are they doingC. they were doingD. were they doing ( ) 12. Excuse me, can you tell me ________?A. why was the train lateB. why the train was lateC. why is the train lateD. whey the train is late( ) 13. Do you know where ________? Someone is looking for him.A. he isB. he wasC. is heD. was he( ) 14. He wanted to know how long ________ in hospital.A. she is stayingB. she had stayedC. did she stayD. she stay( ) 15. My brother said he ________ going ________ his friend the next day.A. was, to meetB. would go, hasC. will go, was going toD. will go, will ( ) 16. He told me that he ________ to London the next day.A. would goB. goC. wentD. has gone( ) 17. He said that light ________ much faster than sound.A. traveledB. will travelC. travelsD. is traveling( ) 18. Our teacher said that the moon ________ around the earth.A. turnB. turnedC. has turnedD. turns( ) 19. He said that April ________ the ________ month of a year.A. is, thirdB. is, fourthC. was, fourthD. was, third( ) 20. Do you know ________?A. is it whose penB. whose pen is itC. whose pen it isD. it is whose pen ( ) 21. Can you tell me ________?A. who are youB. who you areC. you are whoD. who you be( ) 22. Do you know ________ of the three?A. which book she likes bestB. which best book does she likeC. that which book she likes bestD. which book she best likes( ) 23. I hear ________ the teacher will come back from the UK soon.A. whichB. thatC. whenD. whether ( ) 24. Can you tell me ________ language she speaks?A. whichB. whatC. thatD. whether ( ) 25. Can you tell us ________ you grow cotton in your country?A. thatB. whetherC. whichD. whose ( ) 26. I don’t understand ________ you said.A. whenB. thatC. whereD. what( ) 27. Do you know ________ the meeting will begin?A. whenB. thatC. whereD. what( ) 28. Can you tell me ________ the meeting will begin?A. whatB. whetherC. whenD. where ( ) 29. ________ surprised me most was ________ he didn’t go to school yesterday.A. What, howB. What, thatC. That, thatD. Whom, that ( ) 30. I wondered ________ they had been to America.A. ifB. whatC. whoD. that( ) 31. You will feel hungry ________ you don’t have breakfast.A. whatB. whyC. ifD. how( ) 32. Do you know ________ Jack left so early?A. whatB. whyC. untilD. though ( ) 33. You must do ________ I told you.A. afterB. beforeC. whichD. who ( ) 34. I am sure ________ you said is true.A. whatB. thatC. whichD. what ( ) 35. It has not been decided ________ they will leave.A. whyB. whenC. whichD. what ( ) 36. Go back ________ you come from.A. untilB. whereC. whenD. that ( ) 37. Do you know ________ she will go to the cinema with us?A. ifB. whereC. whoD. which( ) 38. The children said ________ they ________ themselves very much.A. if, enjoyB. why, enjoyedC. where, enjoyD. that enjoyed ( ) 39. I don’t think ________ I ________ out the problem.A. if, can workB. how, will workC. that, can workD. when, will work ( ) 40. She is afraid ________ he ________ cold at night.A. that, will catchB. that, catchesC. whether, will catchD. is, catches ( ) 41. We are sure ________ he ________ to speak English well.A. that, learnedB. that, has learnedC. if, learnedD. if, has learned ( ) 42. The boy asked ________ I ________ any noise from outside.A. when, heardB. why, had learnedC. whether, had heardD. what, heard ( ) 43. Who can tell us ________ about over there?A. what they talkB. what do they talkC. what are they talkingD. what they are talking ( ) 44. We couldn’t find out ________, so we asked a policeman.A. whose bike it wasB. whose bike was itC. whose it was bikeD. whose was it bike ( ) 45. Do you know ________ take to get to the hospital?A. which way must weB. which must we wayC. which way we mustD. which we must way( ) 46. Tom asked ________ to school late.A. who did often comeB. who often cameC. why had she leftD. why she had left ( ) 47. I don’t remember ________ the boy by himself.A. why did she leaveB. why she leftC. why had she leftD. why she had left ( ) 48. Have you forgotten ________ when he died?A. how old he wasB. how old was heC. what did he sayD. what he did say ( ) 49. Nobody knows ________ to visit our school.A. when will be comeB. when does he comeC. when he will comeD. when he does come( ) 50. Please tell us ________ to the Science Museum.A. how can we reachB. how we can reachC. how can we getD. how we can get ( ) 51. Don’t you believe ________ to the moon by spaceship?A. that man did flyB. how did the man flyC. if man flyD. whether man fly ( ) 52. The teacher told us ________.A. is the earth roundB. the earth was roundC. the earth is roundD. was the earth round ( ) 53. It’s foggy today. I can’t find out ________ it’s a man ________ a girl.A. if, andB. that, andC. either, orD. whether, or ( ) 54. Could you tell me if he ________ to Beijing?A. has goneB. had goneC. wentD. go( ) 55. Mrs. White asked me ________ I would go shopping with her.A. whatB. whichC. whetherD. that( ) 56. I don’t know ________ the shoes ________ cheap enough.A. if, areB. where, wasC. that, wasD. if, was( ) 57. Li Lei didn’t tell the teacher why ________ yesterday?A. he didn’t comeB. did he not comeC. didn’t he comeD. he don’t come ( ) 58. He said that they ________ Zhangjiajie for a holiday.A. have been toB. had gone toC. have gone toD. has gone to ( ) 59. Lucy told me she ________ me with my English this afternoon.A. will helpB. to helpC. would helpD. is helping ( ) 60. Jack isn’t sure ________ students there are in his factory.A. how manyB. whatC. whichD. whether( ) 61. Who knows ________ dictionary it is?A. who’sB. whoseC. whomD. who( ) 62. Could you tell me if it ________ a lot in summer in your hometown?A. rainedB. rainC. rainsD. is raining ( ) 63. I can’t remember ________ I sent the book to.A. thatB. whichC. whereD. whom( ) 64. None of us knows which floor ________ on.A. is sheB. she livingC. she isD. did she live ( ) 65. We didn’t know ________ to visit our school.A. when did he comeB. when would he comeC. when he was comingD. when he came ( ) 66. Do you know when ________ take off?A. we willB. we areC. shall weD. will we( ) 67. I want to know ________ will go with us.A. whoB. whomC. whatD. that( ) 68. Can you tell me ________ the train leaves?A. whatB. whereC. whenD. how( ) 69. The students must do ________ the leacher told them.A. asB. beforeC. afterD. if( ) 70. ---- I don’t know if he ________. ---- He will come if it ________.A. comes, won’t rainB. will come, doesn’t rainC. comes, doesn’tD. will come, won’t rain ( ) 71. Do you know what time ________?A. the train leaveB. does the train leaveC. will the train leaveD. the train leaves ( ) 72. ---- Could you tell me ________ with the bike? ---- It’s broken down.A. what’s the matterB. what the matter isC. what’s the wrongD. what the wrong is ( ) 73. She said ________ it wouldn’t matter much.A. thatB. ifC. whichD. what( ) 74. We wanted to know ________ the answer was right or not.A. ifB. thatC. whetherD. what( ) 75. John is behind others in maths, but it doesn’t follow ________ he doesn’t use his brains, he may not be interested in it.A. whatB. thatC. ifD. which( ) 76. She has made it clear ________ she will have nothing to do with him.A. whatB. whichC. whetherD. that( ) 77. For centuries, people have wondered ________ this continent is really like, since it is covered with solid thick ice and deep snow all the year round.A. whatB. howC. whichD. whether( ) 78. Li Lei told Jim ________.A. how much yuan is the sweaterB. how much is the sweaterC. how much the sweater isD. how much the sweater was( ) 79. He really doesn’t know ________ the overhead bridge will be finished.A. how longB. how farC. how soonD. how often( ) 80. The teacher came up to see ________.A. what was the matterB. what the matter wasC. what the matter isD. what’s the matter( ) 81. Nobody knew ________ .A. where he comesB. where he was fromC. where he is fromD. where does he come from( ) 82. Can you tell me ________ Mr. Green lives in Room 2318?A. thatB. whereC. untilD. if( ) 83. I told them that the sun ________ in the east.A. risesB. roseC. has ristenD. was rising( ) 84. You must remember ________ the train ________ .A. that, leavesB. when, leavesC. when, will leaveD. if, leave( ) 85. The boy asked how far the moon ________ from the earth.A. wasB. wereC. isD. was( ) 86. I was surprised at ________.A. what he is sayingB. what he saidC. what did he sayD. what said he( ) 87. I forgot ________ France.A. he has gone toB. he had been toC. he wentD. he had gone to ( ) 88. I forgot ________ France.A. she has been toB. she has gone toC. she had been inD. she had gone to ( ) 89. He said he ________ me before.A. has metB. metC. was meetingD. had met( ) 90. I’d like to know when you ________ the army.A. joinB. joinedC. have joinedD. was joining( ) 91. I’m sorry for what I ________.A. doB. didC. have doneD. am doing( ) 92. Do you remember ________ you ________ the look?A. where, putB. if, have putC. what, putD. where, are putting ( ) 93. They will be thankful for ________ you have done.A. whatB. thatC. whichD. who参考答案:1. D2. A3. D4. C5. A6. A7. B8. A9. B 10. A 11. C 12. B 13. A 14. B 15. A 16. A 17. C 18. D 20.C 21. B 22. A 23. B 24. A 25. B 26.D 27. D 28. C 29. B 30. A 31. C 32. B 33. D 34. A 35. B 36.37. A 38. D 39. C 40. A 41. B 42. C 43. D 44. A 465. C 46. B 47. B 48. A 49. C 50. D 51. A 52. C53. D 54. A 55. C 56. A 57. A 58. B 59. C 60. A 61. B 62. C 63. D 64. C 65. C 66.A 67. A 68. C 69.A 70.B 71. D 72. A 73. A 74.C 75. B 76.D 77. A 78. D 79. C 80. A 81. B 82. D 83. A 84. C 85. C86. B 87. D 88. C 89. D 90. B 91. C 92. A 93. A。
人教版初中英语宾语从句练习题40题含答案解析1. I believe _____ he will come to school on time.A.thatB.ifC.whether答案解析:A。
believe 后接宾语从句,且从句为肯定句时,连接词用that。
if/whether 通常用于引导有疑问的宾语从句,这里是肯定的相信,所以用that。
2. I'm not sure _____ he likes apples.A.thatB.ifC.whether答案解析:C。
be not sure 后接宾语从句,表示不确定,连接词用if 或whether。
3. My mother told me _____ I should study hard.A.thatB.ifC.whether答案解析:A。
tell 后接宾语从句,且从句为肯定句时,连接词用that。
4. Do you know _____ he is a good student?A.thatB.ifC.whether答案解析:A/ C。
know 后接宾语从句,既可以用that 引导肯定的内容,也可以用if/whether 引导有疑问的内容。
5. I wonder _____ he will come to my birthday party.A.thatB.ifC.whether答案解析:B/C。
wonder 后接宾语从句,表示想知道,有疑问,连接词用if/whether。
6. The teacher said _____ we should finish our homework on time.A.thatB.ifC.whether答案解析:A。
said 后接宾语从句,且从句为肯定句时,连接词用that。
7. Are you sure _____ he can do it well?A.thatB.ifC.whether答案解析:B/C。