中考英语专题知识点考点系列复习训练题及答案解析(珍藏版)：36连词whether或if引导的宾语从句

1、考点三十六连词 whether或if引导的宾语从句if/whether引导的宾语从句当从句部分是一般疑问句或选择疑问句时，常用if或whether引导宾语从句，if/whether意为是否。说明对陈述的事物不明确或不清楚。常用在see，ask，say，learn，tell，wonder，doubt，find out，be uncertain /doubtful / be not known 等后，二者通常可以互换。口语中多用if代替whether。在非正式的写作中，可以使用if 或 whether 两个词来表达不定性，两者都算标准。I wonder if/whether he is a dri

2、ver. 我想知道他是不是个司机。Alice wants to know if/whether she has passed the exam. 爱丽丝想知道她是否考试及格了。Lily asked if/whether she liked it. 莉莉问她是否喜欢它。 I want to know if (whether) he lives there. 我想知道他是否住在这儿。 He asked me whether (if) I could help him. 他问我是否可以帮助他。【拓展】一般情况下，if和whether可互换，在口语中多用if， 而在以下几种情况下，只能用whether

3、。1. 与 or 连用分别引导两个从句时，或强调两方面的选择, 特别是句中有or not时用whether，不用if。I dont know whether or not they will come. 我不知道他们是否会来。I dont know whether he is wrong or she is wrong. Let me know whether you can come or not.Idontknowwhetherhewillwinornot.IwillwritetoyouwhetherornotIcancome/whetherIcancomeornot.2. 在动词不定式之

4、前只能用whether。He dosent know whether to go or not. 他不知道是否会去。Please tell us whether to go there or stay here. 请告诉我们是去那里还是待在这里。 Whether to go or stay is still a question. Im not sure whether to stay or leave. I didnt know whether to laugh or to cry.3. 在介词之后只能用whether引导宾语从句，而If则不能。It depends on whether I

5、 have enough time. 那取决于我是否有足够的时间。Success depends on whether we make enough effort. I havent settled the question of whether Ill go back home. It depends on whether the letter arrives in time.I worry about whether I hurt her feelings.4. 宾语从句置于句首表示强调时，用whether，不用if。Whether this is true, I cant say. Wh

6、ether he is single, I dont know.Whether this is true, I cant say. Whether he is single, I dont know.5. 在某些动词（如discuss，decide）之后，只能用whether，而不用if引导宾语从句。We discussed whether we should close the shop. （虚拟语气） We discussed whether we should go there by plane.（虚拟语气） We discussed whether we should hold a m

7、eeting. （虚拟语气） 6. 在引导否定概念宾语从句时，只能用if，而不用whether。学He asked me if I hadnt finished my work. 注意：doubt否定句用that引导。因为dont doubt 意为相信，不怀疑，if是否表示疑虑。1. Can you spare time to come to our Thanksgiving party? Well, I dont know _. A. that I can finish my work by then B. if can I finish the work by then C. whethe

8、r I can finish the work by then D. that can I finish the work by then2. I hope you do not mind my asking, but I wonder _ it may be possible for me to share the room with you. A. that B. if C. which D. how3. Im not sure _ the highway will close soon. Lets set off earlier. A. whether B. when C. how D.

9、 why4. David asked me _. A. if I will be free that day B. whether or not I would be free that day C. where do I come from D. when will I leave here5. Could you please tell me _? Yes, sure. A. if there is a bookshop near here B. where can I buy a stamp C. when will the next bus arrive D. you like to

10、eat what6. Im not sure _ there are living things on other planets or not. Even scientists arent sure about it. A. whether B. where C. why D. that1. （2018 河南中考）The words racecar, kayak and level are the same _ they are read left tonight or right to left. A. since B. though C. unless D. whether2.（2017

11、四川成都）Hi, Amy, you live on Center Street. Can you tell me _? Sure. There is one called Grandmas Home. A. where it is B. how I can get there C. if there is a restaurant on it3.（2017山东德州）Excuse me, I wonder _. Yes, its near the bookstore. A. where we will go for the holiday B. if there is a lost and fo

12、und office C. when she will give a call D. how we can go to Hong Kong4.（2016云南昆明）I am worried about _. Whatever the result is, dont be too hard on yourself.A. how have I prepared for my final examsB. if I can get great grades in the final examsC. that my school team lost the game because of my fault

13、D. why did my school team lose the game5.（2016江苏连云港）What did Max just say to you?He asked me _.A. if I would like to go skating B. when did I buy this CDC. where I will spend the weekendD. that I had a good time6.（2016河南）What did Tom say to you just now, John? He asked _. A. why I am so happy todayB

14、. what will I do for the weekend C. Who did I play football with after schoolD. if I could go to the movie with him tonight1. （江苏省徐州市部分学校2017届九年级二模联考）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 out C. whether he can f

15、inish it by himself D. if can I do anything for him2. I dont know _ he still lives here after so many years. A. where B. whether C. what D. when3. What did the woman ask just now? She asked _. A. who was I waiting for B. how she can get to the post office C. where I live D. whether I could help her

16、find the post office4. I wonder _ people could grow plants on Mars. A. if B. that C. which D. whose5. I dont know _ he has time to help us. Lets ask him. A. that B. whether C. how D. what6. Can we visit Hong Kong this summer holiday? I wonder _ it is the best time to go there. A. if B. when C. what

17、D. how7. I dont know _ or not. Neither do I. You may ask his teacher. A. whether he is at school B. if is he at school C. that he is at school D. whether is he at school8. Susan isnt sure _ her parents will allow her to get a part-time job. A. that B. how C. what D. whether跟踪训练1. C 【解析】句意：你能抽出时间来参加我

18、们的感恩节聚会吗？哦，我不知道到那时我是否能完成这项工作。此题考查宾语从句，宾语从句要用陈述句语序。根据句意，故选C。3. A 【解析】句意：我不确定高速公路是否会很快关闭，让我们早些动身吧。A. whether是否；B. when 什么时候；C. how如何；D. why为什么。soon不久，很快，表示时间，因此句子不能再用when来引导，结合句意可知，答案为A。4. B 【解析】句意：大卫问我那天是否有空。考查宾语从句的时态和语序。宾语从句要用陈述语序，首先可以排除C、D选项；asked为ask的过去式，当主句是一般过去时，宾语从句要用过去时态的某种形式（客观事实和真理除外），这样A选项也

19、不符合题意，答案为B。5. A 【解析】句意：你能告诉我这里附近是否有一个书店吗？是的，当然可以。根据Could you please tell me可知，本题是考查宾语从句，宾语从句中一般为陈述语序。选项B、C是疑问语序，所以排除掉；D项的疑问代词应该位于句首，也排除掉；再根据回答Yes，sure. 可知宾语从句含有疑问的语气，所以应用if来引导，故答案选A。6. A 【解析】句意：我不确定在其他的星球中是否有生物。甚至科学家都不能确定这件事。A. whether是否；B. where在哪；C. why为什么；D. that作引导词时无意义。根据下文Even scientists arent

20、 sure about it.可知这里是说是否，用whether引导，故选A。真题再现1. D 【解析】考查连词辨析。racecar(赛车) kayak(皮船)和 level(水平)这些单词读音都是一样的，不论是从左往右读还是从右往左读。 whether有无论，不管的用法，故选D。3. B【解析】句意：打扰一下，我想知道是否有失物招领处？有，它在书店附近。A. where we will go for the holiday我们将要去哪里度假；B. if there is a lost and found office是否有失物招领处；C. when she will give a call她

21、将什么时间打电话；D. how we can go to Hong Kong我们怎么去香港。根据回答，故选B。【名师点睛】（一）wonder 作及物动词，意为想知道；对感到怀疑，常见的用法有：1. 后接 who，what，why，where 等引导的宾语从句。如：I wonder who she is. 我想知道她是谁。She wondered what the child was doing. 她感到疑惑，孩子究竟在干什么。I wonder why Ann is late. 我想知道安为什么迟到了。I wonder where they have gone. 我想知道他们去哪儿了。2. 后接

22、that引导的宾语从句，表示感到惊奇；对感到惊讶，that 常可省去。如：I wonder (that) she has won the race. 我对她赢了比赛感到惊讶。3. 后接 if 或 whether 引导的宾语从句，常用来表示一种委婉的请求或疑问。如：I wonder if he will succeed. 我想知道他会不会成功。4. 后接动词不定式短语。如：I wondered to see you there. 看到你在那里，我感到惊讶。5. 后接疑问词不定式构成的短语。如：Im just wondering how to do it. 我正想知道该怎样做那件事。（二）wond

23、er作不及物动词，意为感到惊讶；感到疑惑，常见的用法有：1. 与 at 连用。如：I wonder at your allowing her to do such a thing. 我对你允许她做这样的事感到惊讶。2. 后接about短语，表示对感到疑惑；对感到新奇。如：I wonder about my future. 我对我的未来感到疑惑。（三） wonder 作名词，意为奇迹；奇观。如：The Great Wall is one of the seven wonders of the world. 长城是世界上七大奇迹之一。4. B 【解析】句意：我在担心我是否可以在毕业考试中取得好的成

24、绩。不论结果如何，不要对自己太苛刻。A.我的毕业考试准备得怎样。宾语从句用陈述句语序，错；B.我是否可以在毕业考试中取得好的成绩；C.因为我的错，我们校队比赛失败了。结果已出来了，与后句的whatever the result is相矛盾，错；D. 为什么我们校队比赛失败了。宾语从句应用陈述句语序。故选B。6. D 【解析】句意：约翰，汤姆刚才跟你说什么了？他询问我今晚是否和他一起去看电影。根据主句的谓语asked可知后面的宾语从句用一般过去时，故排除A、B两项。宾语从句的词序：疑问词+主语+宾语，故排除C项。故选D。模拟检测1. C 【解析】句意：这个项目对于你的表哥来说太难了。是的，我正在想他能否按时独自完成这个项目。am wond