【英语】 英语连词专题练习(及答案)及解析
【英语】高中连词练习(附答案)
【英语】高中连词练习(附答案)一、单项选择连词1．I was glad to meet Jenny again, _______ I didn’t want to spend all day with her．A．but B．and C．so D．or【答案】A【解析】本题考查连词。
句意：我很高兴再次见到Jenny，但是我不想整天都和她呆在一起。
but：但是，表示转折关系；and：并且，表示并列关系；so：所以，表示因果关系；or：或者，否则，表示选择关系。
选A。
考点：连词／连接词2．______ unemployment and crime are high, it can be assumed that the latter is due to the former.A．Where B．Before C．Until D．Unless【答案】A【解析】考查连词。
A. Where在…地方；B. Before在…前；C. Until直到；D. Unless除非。
句意：在失业率和犯罪率居高不下的情况下，人们可以假定后者是由前者造成的。
表示在…情况，故选A.3．________ being famous might sound like a dream come true, today’s star, feeling like zoo animals, face pressures that few of us can imagine.A．If B．Since C．Until D．Although【答案】D【解析】考查状语从句。
A. If如果；B. Since既然；C. Until直到……为止；D. Although尽管。
句意：虽然成名可能听起来像是梦想成真，但今天的明星，就像动物园里的动物一样，面临着我们几乎无法想象的压力。
此处用Although引导让步状语从句，表示“尽管”。
4．Some pressure is good for you ________ it can help you try harder.A．unless B．althoughC．before D．as【答案】D【解析】考查连词。
【英语】初中必备英语连词技巧全解及练习题(含答案)及解析
【英语】初中必备英语连词技巧全解及练习题(含答案)及解析一、初中英语连词1．— Since you have one ticket left, ____ my sister_____ I will go with you.— Oh, I'm really sorry. Then what about next time?A. both; andB. either; orC. neither; norD. not only; but also【答案】 B【解析】【分析】句意：——既然你只剩下一张票，要么我妹妹要么我和你一起去。
——哦，我真的很抱歉，那下次呢？根据只剩下一张票，可知只能去一个人，A两个都，B两个都不，C两者之一，D不但而且，故选B。
【点评】考查连词，注意either，or的用法。
2．It was the middle of the night _____the sound of the piano woke me up.A. becauseB. ifC. whenD. although【答案】 C3．Mark felt very bad today. __________, he kept working all day and said nothing about it.A. HoweverB. ThereforeC. OtherwiseD. Besides【答案】 A4．—Could you tell me more about the movie Frozen II __________ you have watched it.—No problem. But you'd better watch it in person __________ I can't express its beauty.A. since; soB. unless; asC. since; as【答案】 C5．My wallet dropped on the ground ________________ I was walking.A. beforeB. afterC. whileD. because【答案】 C6．The situation is becoming more serious ________________ we do something to save the Earth.A. ifB. whenC. becauseD. unless【答案】 D7．Yesterday morning I was just leaving the telephone rang.A. whenB. whileC. becauseD. since【答案】 A8．Some people waste food___________ others haven't enough.A. whileB. duringC. whenD. which9．Your dream will come true ______________ you put your heart and soul into it.A. ifB. unlessC. althoughD. until【答案】 A【解析】【分析】句意：如果你全心全意，那么你的梦想将会实现。
【英语】英语连词专项训练及答案
英语】英语连词专项训练及答案一、初中英语连词1． The Great Wall is famous lots of visitors all over the world come to visit it every year.A. so; thatB. such; thatC. enough; thatD. very; that【答案】 A【解析】 【分析】句意： 长城是如此著名，以至于每年都有许多世界各地的游客来参观 它。
enough 和 very 不引导从句，故 C ，D 选项被排除， so+形容词 +that ，引导结果状语从 句， such+名词 +that ，引导结果状语从句， famous 是形容词 ， 故选 A 。
【点评】考查连词辨析，注意 such+名词+that ，引导结果状语从句 的用法。
2． __ it rained a lot, we enjoyed our holiday.A. AlthoughB. Because 答案】 A 3． Giveme your email address, _____ I 'll send you the form.A. orB. andC. butD. nor【答案】 B4． Some people won't realize the importance of their health __ they lose it.A. becauseB . afterC . whenD . until【答案】 D 5． You will find it useful to learn to study by yourself ___ you go to college.答案】 D 6． Mark felt very bad today. _______ , he kept working all day and said nothing about it.A. HoweverB. ThereforeC. OtherwiseD. Besides【答案】 A7． How can we improve our environment a loteach of us does something useful for it? A. while B . until C . after D . unless【答案】 D8． My father was preparing for his speech ____________ my mother was doing some washing last night.A. if B . unless C . while D . until【答案】 C9． British people and Australian people speak the same language, ___________ they have different customs and cultures.A. and B . but C . so D . for C. Unless D. HoweverA. whileB . untilC . SinceD . when【答案】B10．The situation is becoming more serious _________________ we do something to save the Earth.A. if B . when C . because D . unless【答案】D11．She got up very early that day ________ she could catch the first train.A. becauseB. ifC. thoughD. so that【答案】D12．Jim has been in the factory for two months _____ he left school.A. whenB. sinceC. as soon asD. whether【答案】B13．Your spoken English will get better and better ____________ you practise speaking more.A. beforeB. ifC. thoughD. until【答案】B【解析】【分析】句意：如果你多练习说英语，你的英语口语会越来越好。
【精品】小升初英语总复习专题训练试题-连词成句(解析版)
【精品】小升初英语总复习专题训练试题-连词成句(解析版）1.to , eat , I , hamburgers , want________________________________________________________________（.）2.do , want , what , you , drink , to________________________________________________________________（?）3.I , can , you , help________________________________________________________________ （?）4.thirteen dollars , is , it , thirty cents , and________________________________________________________________（.）5.meal , your , enjoy________________________________________________________________（!）6.tomorrow , will , be , it , windy_________________________________________________________________（.）7.so , look , happy , today , you_________________________________________________________________（.）8.the , some , are , on , ducks , pond , there_________________________________________________________________（.）9.pupils a in park week last the picnic had the (.)__________________________________________________________________ 10.birds singing the tree are in the (.)__________________________________________________________________ 11.eggs falling the are (.)__________________________________________________________________12.can who me help (?)___________________________________________________________________ 13.say happy they birthday (，" " ！)___________________________________________________________________ 14.can carry I box this (.)___________________________________________________________________ 15.Dad suona playing is the (.)___________________________________________________________________ 16.friend hear him his can't (. )___________________________________________________________________ 17.you , going , when , park , are , to , the_________________________________________________________________（?）18.looks , it , you , going , stay , are , like , hungry , to_________________________________________________________________（.）19.reading but sister sing he's a his book to starts (，. )___________________________________________________________________ 20.are we table playing tennis (. )___________________________________________________________________答案解析部分一、连词成句1.【答案】I want to eat hamburge rs .【解析】【分析】to , eat吃, I我, hamburgers汉堡包, want想要，根据所给单词可以排成句子：我想要吃汉堡包。
英语连词and,or,but的用法专题练习(及答案)
英语连词and,or,but的用法专题练习(及答案)一、选择题1．It’s hot today, ______we want to go swimming in the river.A．though B．but C．so D．or2．Be more careful this time, ______ you’ll make the same mistake again.A．and B．or C．so D．but3．– How do you like this soap opera?– I th ink it’s very boring, ________ my mother always wants to watch it.A．if B．but C．or D．So4．Mom added some salt into the soup, ______ it still wasn't salty enough.A．so B．and C．but D．or5．To some people living in Shanghai, the face of Shanghai may have changed, ________ the heart of it remains the same.A．but B．and C．so D．or6．I’d like to go swimming with you, ______ I am too busy today.A．but B．and C．so D．or7．— Some people think students may waste time while studying at home.—It is true, ________ students have improved their ability through learning independently. A．but B．so C．or8．I didn’t have breakfast this morning, ________ I am very hungry now.A．but B．so C．or D．and9．I phoned Sarah last night, ______ there was no answer.A．and B．but C．or D．so10．It was very dark outside， ___________ we had to feel our way slowly.A．so B．but C．for D．or11．I like taking photos, _____my cousin doesn’t like it.A．and B．but C．or D．so12．I must go back home before 11 p.m., ________ my father will be angry with me. A．and B．or C．so D．but 13．Lucy, don’t turn off the computer before closing all programs, ________you could have problems.A．or B．and C．but D．so 14．Jimmy set out early for the airport，______ he wouldn't catch the plane．A．and B．then C．so D．or15．Just leave the key to the exercises behind, you will be dependent on it.A．or B．and C．so D．but16．2018年上海崇明二模Please dial 120 immediately,_______ the old man may die soon. A．and B．or C．but D．so17．Do you want to go now, would you like to leave later?A．but B．or C．and D．so18．Hurry up, you will miss the busA．or B．And C．but D．so19．You’d better wake up Tom at 6：30， he will be late for the match．A．if B．or C．and D．but20．2018年上海长宁二模Martin didn't eat up all the food he ordered,________he took the rest away.A．for B．or C．as D．so21．It was raining heavily, _____ we decided to stay at home and watch TV.A．but B．or C．because D．so22．The toys are really old, ________ I still want to keep them.A．or B．and C．but23．Bob is young, _______ he knows a lot.A．because B．so C．but D．unless24．I really want to have a pet dog,_____ my mother disagrees.A．but B．and C．or D．so25．I like dancing, ______ I don’t have enough time to practice it.A．or B．so C．but D．because26．The thing that matters is not whether you fail or not, ________ whether you try or not. A．and B．or C．so D．but 27．—Would you like to go to the cartoon show with me?—It sounds like fun, ________ I’m too busy.A．so B．or C．for D．but28．Going to the movies is good, ______ I really only like listening to music.A．and B．but C．so D．or29．Liza speaks English very well，_______she doesn’t know Chinese.A．and B．so C．but D．Because 30．Ben was busy taking a training class, ______we had to wait for him for half an hour.A．so B．if C．or D．but31．We will never see Kobe play another basketball game, ________we will always remember him.A．because B．unless C．but D．if32．A snake bit him ___________ he went to see a doctor at once.A．if B．where C．because D．so33．Many people aren’t attracted to this p roject, ________ I want to know more about it.A．as B．or C．until D．but34．The jacket is nice, _________ it doesn’t look good on me.A．so B．if C．but D．or35．Alice likes swimming, ________ there is no swimming pool near her home.A．and B．but C．unless D．because36．The F1 driver is hugely talented, ________ he still works hard to achieve his goals.A．so B．but C．if D．though37．The team met a lot of difficulties, ______ they never gave up and won the game at last. A．or: B．and C．but D．so38．I was late for school t oday ______ I didn’t catch the early bus.A．because B．so C．but D．then39．Cindy likes bananas, ______ she doesn’t like pears.A．and B．because C．but40．It’s not always safe to pay over the Internet, you should be careful.A．so . B．after . C．because . D．as soon as【参考答案】一、选择题1．C【解析】试题分析：句意：今天真热，因此我们想去河里游泳。
(英语)英语专题汇编连词(一)含解析
（英语）英语专题汇编连词(一)含解析一、初中英语连词1．Love your parents __________ they are alive. Don't wait until it is too late.A. whileB. thoughC. becauseD. unless【答案】 A【解析】【分析】句意：当你父母活着时爱他们。
不要等到太迟才行动。
while当……时候；though虽然；because因为；unless除非，故选A。
根据句意只有A选项是正确的，其它选项翻译不通，故选A。
【点评】此题考查连词辨析。
弄清每个连词意思，根据语境和句意确定所使用的连词。
2．I think you should be against the situation, ________, of course, you are happy with it. A. because B. however C. anyway D. unless【答案】 D3．——What do you think of our school basketball team?——They're going to lose the match __________ they improve their skills.A. unlessB. untilC. ifD. as【答案】 A4．—Tom, what does "Stay hungry, stay foolish." mean?—You can have your own understanding. But I think it means follow your original aspiration （初心） you will succeed.A. soB. butC. andD. or【答案】 C5．____it rained a lot, we enjoyed our holiday.A. AlthoughB. BecauseC. UnlessD. However【答案】 A6．He knows a lot, ________ he is just a child.A. howeverB. thoughC. andD. because【答案】 B7．_____________ my brother arrived in Thailand, he visited the local biggest temple at once.A. As soon asB. WhileC. UntilD. Before【答案】 A8．My father was preparing for his speech ______________ my mother was doing some washing last night.A. ifB. unlessC. whileD. until【答案】 C9．Peter bought some goldfish ______________ he found it difficult to raise them.A. becauseB. orC. thoughD. until【答案】 C10．Study hard, _______ our parents will be disappointed.A. andB. butC. orD. because【答案】 C11．She got up very early that day __________ she could catch the first train.A. becauseB. ifC. thoughD. so that【答案】 D12．She got up late, __________ she missed the bus.A. soB. becauseC. thoughD. but【答案】 A13．You can take___________ the train___________ the bus there. It will take the same amount of time.A. eithers orB. both andC. neither; norD. not only: but also【答案】 A14．Tom won't play computer games __________ he finishes his homework.A. ifB. so thatC. unlessD. although【答案】 C15．Yesterday morning I was just leaving the telephone rang.A. whenB. whileC. becauseD. since【答案】 A16．Do you still want to go camping in such cold weather __________ have you changed your mind?A. andB. orC. butD. so【答案】 B【解析】【分析】句意：这么冷的天气你还想去露营还是你已经改变主意了？A.和，表并列；B.或者，表选择；C.但是，表转折；D.因此，所以，表结果。
【英语】英语连词的基本方法技巧及练习题及练习题(含答案)及解析
【英语】英语连词的基本方法技巧及练习题及练习题(含答案)及解析一、初中英语连词1．Could you tell me __________the singer will come to our school or not?A. ifB. whetherC. thatD. what【答案】 B【解析】【分析】句意：你能告诉我歌手是否会来我们学校吗？whether...or not，固定搭配，是否，故选B。
【点评】考查固定搭配，注意whether...or not的用法。
2．——What do you think of our school basketball team?——They're going to lose the match __________ they improve their skills.A. unlessB. untilC. ifD. as【答案】 A3．—My parents are crazy about Running Man. How about your parents?—_________ my dad _________ my mum likes it. Instead, they prefer The Voice of China.A. Neither; norB. Both; andC. Not only; but also【答案】 A4．The film is really exciting. the students their teacher is enjoying the film.A. Both; andB. Not only; but alsoC. Either; orD. Neither; nor【答案】 B5．He knows a lot, ________ he is just a child.A. howeverB. thoughC. andD. because【答案】 B6．—The air pollution is terrible.—It will be worse ______ we take action to protect the environment.A. ifB. unlessC. untilD. when【答案】 B7．How can we improve our environment a lot each of us does something useful for it?A. whileB. untilC. afterD. unless【答案】 D8．_____________ my brother arrived in Thailand, he visited the local biggest temple at once.A. As soon asB. WhileC. UntilD. Before【答案】 A9．My wallet dropped on the ground ________________ I was walking.A. beforeB. afterC. whileD. because【答案】 C10．Study hard, _______ our parents will be disappointed.A. andB. butC. orD. because【答案】 C11．Little Kate went to school___________ it rained heavily yesterday.A. thoughB. ifC. butD. since【答案】 A12．After the new high-speed railway line began operations, the time on the trip from Lianyungang to Qingdao now is much less than __________in the past.A. oneB. thisC. thatD. it【答案】 C【解析】【分析】句意：新高速铁路开通后，连云港到青岛的时间比过去少了很多。
【精品】小升初英语总复习专题训练试题-连词成句(含解析)
【精品】小升初英语总复习专题训练试题-连词成句(含解析）一、连词成句1.meet I'm in going Beijing to you________.2.his, is, hat, on, Danny, putt ing(.)________3.fish I a have________4.wakes/ up/ me/ /the/my/ mother/ morning/at 6:30/in (.) (连词成句)5.our, is, Li, teacher, Miss. , English, new (.)6.wearing, He, red, is, trousers ( . )________7.you do last did what weekend (？)8.①Thank②my③teachers④ you⑤to________.9.What's , colour , favourite , your , ________ ?10.two I am________11.Amy，got，fever，today，has，a (.)________12.you / want / be / to / do / bus driver / a (?)________13.Yes is it ( , . )________ [来源:学科网]14.got，bag，what，you，in，have，your(？)15.is / the / blowing / strongly / wind (.)________16.the, room, computer, is, Where17.you,what,do,the,on,do,weekend(? )________18.know, also, Australia, I, city, the, capital, of(.)________19.wants / to / Bob / food / nice / cook (.)________20.pig，my，this，is(．)________21.taller, you, than, are, brother, your (.)(连词成句)22.is the When this year trip ?23.like, I, teddy bear, your ( . )________24.a is zoo in there the south (?)25.birthday 17 Her is December________.26.①some ②I ③have ④May ⑤milk________?27.going, party, I'm, a, to (.)________28.food, your, what's, favourite________29.the,where,the,orange,is,it is desk,on.(连词成句)________30.everything , robots , do , will________（.）31.do，anything，did，else，you (?)________32.连词成句。
(英语)中考英语连词练习题及答案及解析
（英语）中考英语连词练习题及答案及解析一、初中英语连词1．— Do you know ____________Grandma is going to visit us？—Next Saturday. She told me on the phone.A. whereB. whyC. whenD. whether【答案】 C【解析】【分析】句意：——你知道奶奶什么时候来看望我们吗？——下周六。
她在电话告诉我们的。
where 哪里；why 为什么；when 何时；whether是否. 根据答语next Saturday，可知问的是时间，用when提问，故选C。
【点评】本题考查疑问词辨析。
根据答语确定所使用的疑问词。
2．Some people won't realize the importance of their health ____ they lose it.A. becauseB. afterC. whenD. until【答案】 D3．How can we improve our environment a lot each of us does something useful for it?A. whileB. untilC. afterD. unless【答案】 D4．—Learning to love is like learning to walk.—Yes, ______ we step out bravely, we'll find it's not so difficult.A. as a resultB. even thoughC. as long asD. as far as【答案】 C5．I got up at six this morning _____________ I could catch the early bus to Nanjing.A. soB. thatC. in order toD. so that【答案】 D6．He is getting fat, _______________ he has decided to go to work on foot.A. becauseB. thoughC. soD. and【答案】 C7．I don't like western food. I seldom eat it ______________ to McDonald's with my daughter.A. ifB. whenC. asD. unless【答案】 D8．__________ the teacher came in, the students stopped reading at once.A. WhenB. WhileC. BeforeD. /【答案】 A9．Jim has been in the factory for two months ________ he left school.A. whenB. sinceC. as soon asD. whether【答案】 B10．After the new high-speed railway line began operations, the time on the trip from Lianyungang to Qingdao now is much less than __________in the past.A. oneB. thisC. thatD. it【答案】 C【解析】【分析】句意：新高速铁路开通后，连云港到青岛的时间比过去少了很多。
【英语】必备英语连词技巧全解及练习题(含答案)含解析
【英语】必备英语连词技巧全解及练习题(含答案)含解析一、初中英语连词1．______________ China has been a member of WTO, English is more important.A. SinceB. ThoughC. WhenD. If【答案】 A【解析】【分析】句意：自从中国加入WTO后，英语就更重要了。
since自从，though虽然；when当……时候；if如果，只有since是正确的，though放在此处句子翻译不通顺；when不和现在完成时连用；if引导从句是一般现在时或现在完成时，主句用将来时，故选A。
【点评】考查连词辨析。
根据句意确定所使用的连词。
2．—Tom, what does "Stay hungry, stay foolish." mean?—You can have your own understanding. But I think it means follow your original aspiration （初心） you will succeed.A. soB. butC. andD. or【答案】 C3．—My parents are crazy about Running Man. How about your parents?—_________ my dad _________ my mum likes it. Instead, they prefer The Voice of China.A. Neither; norB. Both; andC. Not only; but also【答案】 A4．You will find it useful to learn to study by yourself _____ you go to college.A. whileB. untilC. SinceD. when【答案】 D5．How can we improve our environment a lot each of us does something useful for it?A. whileB. untilC. afterD. unless【答案】 D6．Although she is under great stress, ______ she always wears a smile on her face.A. andB. orC. butD. /【答案】 D7．_____________ my brother arrived in Thailand, he visited the local biggest temple at once.A. As soon asB. WhileC. UntilD. Before【答案】 A8．My father was preparing for his speech ______________ my mother was doing some washinglast night.A. ifB. unlessC. whileD. until【答案】 C9．The film is really exciting. ______the students ______ their teacher is enjoying the film.A. Both; andB. Not only; but alsoC. Either; orD. Neither; nor【答案】 B10．After the new high-speed railway line began operations, the time on the trip from Lianyungang to Qingdao now is much less than __________in the past.A. oneB. thisC. thatD. it【答案】 C【解析】【分析】句意：新高速铁路开通后，连云港到青岛的时间比过去少了很多。
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【英语】英语连词专题练习(及答案)及解析一、初中英语连词1．—We have red and yellow T-shirt, which color do you like?—I'm afraid . I think blue will be OK.A. bothB. eitherC. neitherD. none【答案】 C【解析】【分析】句意：——我们有红色和黄色的T恤，你喜欢哪种颜色？——恐怕两件都不喜欢。
我认为这件蓝色的不错。
A 两者都；B 两者中的任何一个，要么……要么……；C两者都不；D 三个或三个以上的都不。
根据句意，可知我选的是蓝色的，红色和黄色的都没有选，故两者都不喜欢，故选C。
【点评】考查连词辨析。
注意识记各连词含义及用法。
2．He knows a lot, ________ he is just a child.A. howeverB. thoughC. andD. because【答案】 B3．You will find it useful to learn to study by yourself _____ you go to college.A. whileB. untilC. SinceD. when【答案】 D4．_____________ my brother arrived in Thailand, he visited the local biggest temple at once.A. As soon asB. WhileC. UntilD. Before【答案】 A5．My father was preparing for his speech ______________ my mother was doing some washing last night.A. ifB. unlessC. whileD. until【答案】 C6．The situation is becoming more serious ________________ we do something to save the Earth.A. ifB. whenC. becauseD. unless【答案】 D7．She got up late, __________ she missed the bus.A. soB. becauseC. thoughD. but【答案】 A8．___________three fourths of the Earth's surface is covered with water, 97 percent of it is saltwater in the sea.A. ButB. AlthoughC. AsD. However【答案】 B9．Although he is a little boy, _____he speaks English well.A. /B. butC. soD. and【答案】 A【解析】【分析】句意：虽然他是个小男孩，但他英语说得很好。
although引导的让步状语从句，不和but同时出现，故选A。
【点评】考查连词，注意although不和but同时出现的用法。
10．______________ China has been a member of WTO, English is more important.A. SinceB. ThoughC. WhenD. If【答案】 A【解析】【分析】句意：自从中国加入WTO后，英语就更重要了。
since自从，though虽然；when当……时候；if如果，只有since是正确的，though放在此处句子翻译不通顺；when不和现在完成时连用；if引导从句是一般现在时或现在完成时，主句用将来时，故选A。
【点评】考查连词辨析。
根据句意确定所使用的连词。
11．— Would you like to go camping this weekend?— I'd love to, ______________ I can't. I have to prepare for the English Speech Contest.A. andB. orC. butD. so【答案】 C【解析】【分析】句意：——这个周末你想去野营吗？——我很想去，但不行。
我得准备英语演讲比赛。
A 和，表示并列或顺承；C 或者，表示选择；C 但是，表示转折；D 因此，表示结果。
根据答语中的I'd love to, 与I can't. I have to prepare for the English Speech Contest.可知，这两个语句表示转折，要用but，故选C。
【点评】考查连词辨析。
注意每个连词的含义及用法，根据语境确定最佳选项。
12．Bill, stop smoking, you'll get better soon.A. butB. afterC. orD. and【答案】 D【解析】【分析】句意：比尔，不要抽烟，那么你很快好起来。
A.但是；B.在……之后；C.或者，否则；D.和。
该句是祈使句，且句子前后是并列顺承关系，因此用and，故答案选D。
【点评】考查连词辨析。
注意句子涉及到祈使句，and/or+陈述句的用法。
13．The environment will be much worse ______everyone has a sense of protecting it. A. unless B. if C. so that【答案】 A【解析】【分析】句意：除非每个人有保护环境的意识，否则环境将会更糟糕。
A除非……否则；B如果；C为了。
除非有环保意识，否则环境将变得更糟，本句是unless引导的条件状语从句，故答案选A。
【点评】考查连词辨析，首先识记连词词义，然后根据词义和句意确定。
14．You like football ___________ she likes reading.A. WhenB. orC. becauseD. while【答案】 D15．The little boy was______ excited _____ say a word when he knew the result of the final exam.A. too; toB. so; thatC. so; asD. such; that【答案】 A【解析】【分析】句意：当这个小男孩知道期末考试的结果时，他激动得说不出话来。
A 太而……不能，不引导从句，B如此……以至于，修饰形容词，引导结果状语从句，C和……一样，不引导从句，D如此……以至于，修饰名词，引导结果状语从句，excited是形容词，此处是结果状语从句，故选A。
【点评】考查连词辨析，注意so...that引导结果状语从句的用法。
16．The battle continued for several hours ___________ darkness came on.A. as soon asB. thoughC. sinceD. until【答案】 D【解析】【分析】句意：战争持续了几个小时，直到黑夜来临。
A.一……就……；B.尽管；C.自从；D.直到。
continue是延续性动词，句子所要表达的意思是战争一直持续到了晚上，所以使用until，故答案是D。
【点评】考查连词辨析，注意连词until的用法。
17．_______________ you start right now, you will be late for the meeting.A. UnlessB. IfC. SinceD. As【答案】 A【解析】【分析】句意：除非你现在就开始，否则你开会就要迟到了。
A.除非......否则；B.如果；C.自从；D.因为。
除非现在开始，否则开会会迟到，所以用unless，故选A。
【点评】考查连词辨析，首先识记连词词义，然后根据句意确定。
18．You aren't able to lose weight _______________ you change your eating habits.A. ifB. unlessC. afterD. since【答案】 B【解析】【分析】句意：除非你改变你的饮食习惯，否则你不能减肥。
A.如果；B.除非......否则；C.在......之后；D.自从。
除非改变饮食习惯，否则不会减肥，所以用unless，故选B。
【点评】考查连词辨析，首先识记选项意思，然后根据句意确定。
19．Jenny didn't go to bed her mother came home last night.A. as soon asB. ifC. whileD. until【答案】 D【解析】【分析】句意：昨天晚上珍妮直到母亲回家才睡觉。
as soon as，一……就……；if，如果；while，当……时候；until，直到，not...until...，直到……才……，故选D。
【点评】考查连词辨析。
注意固定短语not...until...的使用。
20．A little monkey might feel sad because of having a new baby sister or brother!—Yeah. I didn't know that I saw the film Born in China.A. ifB. untilC. sinceD. although【答案】 B【解析】【分析】句意：——一个小猴因为有新生的妹妹或弟弟可能感到伤心。
——是的。
我直到看到电影《我们诞生在中国》才知道。
if如果；until直到；since自从；although虽然，not...until....直到……才……，固定短语，故选B。
【点评】考查连词辨析。
根据上下文的联系确定句子中所使用的连词。
21．Tourists can choose to visit Kunming ______________ they like- spring, summer, autumn or winter.A. whoeverB. whateverC. wheneverD. wherever【答案】 C【解析】【分析】句意：——游客们可以选择在他们喜欢的任何时候来昆明。
——春天、夏天、秋天或冬天。
A、无论谁， B、无论什么，C、无论什么时候，D、无论在哪儿，根据下文spring, summer, autumn or winter，可知上文是说他们喜欢的任何时候，故答案为C。