3.3 Unit 3 Discovering Useful Structures Grammar语法省略-高一英语同步精品课件 课后习题（人教版2019必修第三册).docx

1、Unit 3 语法省略一、单项选择1When _ different cultures, we often pay attention only to the differences without noticing the many similarities.AcompareBcomparedCcomparingDhaving compared2Engineers noticed that the pipes were not expanding _.Aas were expectedBas it was expectedCas expectingDas expected3She had s

2、aid little so far, responding only when_.AspeakingBspoken toCspokenDspeaking to4Generally speaking, _ according to the directions, the drug has no side effect.AWhen takingBwhen to takenCwhen to takeDwhen taken5Man may disappear_ other creatures who became too specialized to survive their environment

3、.AasBjust asCas ifDas have6If _, I will sign up to take the training class tomorrow.AnecessaryBis necessaryCit necessaryDto necessary7In the lecture, little Jack kept silent all the time unless _ to express his opinion.Ahe invitedBinvitedChe is invitedDbeing invited8When _ in this way, your friendsh

4、ip will soon be repaired.AapproachBapproachingCto approachDapproached9When _which activity would be the most difficult to give up for a week, 48% said listening to music.AaskedBaskingCbeing askedDhaving asked10Though _ by gradual blindness, Alice was still _ of writing compositions.Awas affected; ab

5、le Baffected; capableCwas influenced; capableDinfluenced; able11When entering the office, _.ARoger was found sitting at a deskBwe found Roger seated at a deskCRoger was found sat at a deskDit was we who found Roger seat at a desk12When _ the French and German versions of the Mozart musical, students

6、 concluded that the French one is more colorfully displayed and goes on more light-spiritedly.AcompareBto compareCcomparedDcomparing13While watching television, _.Athe doorbell rangBthe doorbell ringsCwe heard the doorbell ringDwe heard doorbell rings14_ with the size of the whole earth, the highest

7、 mountain doesnt seem high at all.AWhen comparedBTo compareCWhile comparing Dit compared15As _, we will gather at the foot of Baiyun Mountain near our school at 8:00 am this Saturday.AschedulingBschedulesCscheduledDto schedule16I am short and thin, but I run fast, I hope they will accept me _.Aas I

8、amBas it isCas it doesDas I do17Daniel has undertaken to keep the secret, so he wont tell anyone even though _.Aasked to keepBto be askedCto askDasked to18Someexpertsbelievethatthe students,once _ to computer games, will probably lose opportunities of progressing.AaddictingBaddictedChaving addictedD

9、being addicted19“If”, he added, “_ enough time, I would certainly have done it better.”Ato giveBbeing givenCgivenDgiving20There were other reasons in addition to the bad weather why they didnt leave for Beijing _.AscheduledBas scheduledCas it scheduledDas scheduling二、用单词的适当形式完成句子21After _ (encourage

10、) by what Jane said, Peter walked to the centre of the stage. 22When deeply _ (absorb)in work, I could become successful. 23Youd better keep silent until _(speak) to. 24Though_(inspire) by the encouragement from his teacher, Frank still found it hard to push himself up to the stage to talk about his

11、 sufferings of depression. 25Please take notes while _ ( listen) to the teacher. 26Anyone, once _ (test) positive for COVID-19 virus, will receive free medical treatment from our government. 27Its walls were fresh as if _(paint) yesterday; not a single color changed on the rich pattern of its floors

12、. 28To prevent soft tissue injury, make sure that you wear proper clothes and equipment when _. (exercise) 29If properly _(treat) waste will do no harm to the environment. 30Make sure that you wear proper clothes when _ (exercise). 31When _ (question), she said that she hadnt set a goal yet. 32If _

13、(give) another chance, I could do it better. 33When _ (heat), water can be changed into steam. 34As _(plan), the meeting will be held next month. 35The medicine is quite effective if _(take) on time. 36If _(necessity), Ill finish my report on American poetry as soon as it is possible. 37These pills

14、will help you_(calmly) down when you feel you are exploding with anger. 38He always prefers to start early rather than_（leave）everything to the last minute. 39While _ (walk) along the street. I heard my name called.40While_ (climb) the mountain, we enjoyed the warm sunshine and a beautiful view. 41A

15、fter _ (take) before dinner, the medicine should be put beyond your sons reach. 42When _ (combine) with alcohol, some medicine can have extremely dangerous side effects. 43Children, when _（accompany） by the parents, are allowed to enter the stadium. 44If _ (rid) of those bad study habits, you will m

16、ake rapid progress. 45The roads were blocked. so there was nothing for me to do but _ (stay) inside.46The skills, once_(gain), will be of great use to English study.47When_(cross) the road, you can not be too careful. 48Its walls were painted fresh as if_(paint) yesterday. 49Although_ (beat) by the

17、opposite team, we didnt lose heart and encouraged each other.(所给词的适当形式填空）50While _(wait) for the bus，he met an old friend.51It is natural that beginners make mistakes while _ (write). 52While _(lie) in bed, Mr. Wang heard a loud knock on the door. 53Follow the directions on the bottle carefully when

18、 _ (take) the medicine. 54When _(compare) different languages, we may learn about there being not only some differences but many similarities. 55Her father told her to be careful when _ (cross) the street. 56When _(face) with difficulties, you may find it hard to overcome them, but you can succeed s

19、o long as you dont give up. 57When_ (ask) for his views about his teaching job, Philip said he found it very interesting and rewarding. 58If _（accept） for the job，youll be informed soon. 59She discovered so many amazing things while_(explore) the new city.60Tom raised his hand as if _ (say) somethin

20、g.61If _ (breath) in, they can result in serious disease like lung cancer. 62Once, while _(work) overnight at a store, he let a homeless man sleep in his truck. 63Video games can be a poor influence if_(leave) in the wrong hands.64If _ (accept) for the job, youll be informed soon.65If_(ask) to look

21、after luggage someone else, inform the police at once. 66This isnt as hard as it sounds, and it is far better than any other method because you improve your vocabulary while_（read）an interesting piece of literature. 67_(concern) about the student, the teacher called his parents to find out why he wa

22、s so absent from class. (单词的适当形式填空)68In the film, the actor threw himself off the horse as if _(shoot) to death. 69When _(ask) about the secret of his success, the famous athlete says that he owes much of his success and happiness to his wife and children.(所给词的适当形式填空）70Though _(surprise) to see us,

23、the old man gave us a warm welcome. 参考答案：1C【解析】考查状语从句的省略。在when, while, if, as if, though(或although), as, until, once, whether, unless, where等连词连接的状语从句中，常省略从句中跟主句一致的主语和be动词，或者省略主语it和be动词。结合句意，分析子可知，“When _ different cultures”是时间状语从句，原句为“When we are comparing different cultures”，符合状语从句省略条件，省略we are后，应

24、保留现在分词comparing。故选C。2D【解析】考查状语从句。句意：工程师注意到管道没有像预期的那样膨胀。分析句子结构可知，设空处是由连接词as引导的状语从句，完整句子为as the pipes were expected，当状语从句主语与宾语从句主语the pipes一致，且谓语动词含有be动词，可省略状语从句的主语及be动词，保留expected。故选D项。3B【解析】考查短语和状语从句的省略。句意：到目前为止，她几乎没说什么，只是在与她交谈时才做出回应。结合句意表达“与某人谈话”用speak to sb.；此处为状语从句的省略，完整的句子为：when she was spoken t

25、o，当主从句主语一致，且从句有be时，可以省略从句的主语和be。故选B。4D【解析】考查状语从句的省略。句意：一般地说，当按照说明书来服药的话，药就没有副作用。根据句子结构可知，此句是时间状语从句，主从句的主语都是the drug，故从句可以省略主语及谓语。the drug与take是动宾关系，故用被动语态。根据has可知，时态是一般现在时，还原句子：Generally speaking, when the drug is taken according to the directions, the drug has no side effect.，将主语及谓语省略，故填when taken。

26、故选D。5D【解析】考查倒装语序。句意：人们可能会像其他太依赖于在它们自己的环境存活的生物一样消失。这里as引导方式状语从句，从句结构不完整，主语是other creatures（其它生物），后面的定语从句是修饰主语的，other creatures缺失谓语动词，那么这里用到的就是倒装。正常语序应该是Other creatures who became too specialized to survive their environment have disappeared。（其他太依赖于在它们自己的环境存活的生物已经消失了。），这里把have提前，因为和前面的句子有同样的谓语动词，所以进行了

27、省略，避免重复，故选D。6A【解析】考查状语从句的省略。句意：如果有必要，我明天就报名参加培训班。if necessary是固定的省略结构，表示“如果有必要的话”。故选A。7B【解析】考查状语从句的省略。句意：在演讲中，小杰克一直保持沉默，除非被邀请发表他的意见。分析句子成分和句子结构可知，unless在句中引导条件状语从句，从句主语与主句主语一致，为Jack，分析句意再结合主句谓语动词 kept 可知，从句要使用一般过去时的被动语态，即unless he was invited，当从句主语与主句主语一致时，从句中的主语和be动词可以省略，所以he was 可省略。故选B项。8D【解析】考查状

28、语从句的省略。句意：以这种方式接触，你们的友谊很快就会修复。在状语从句中，如果从句的主语与主句的主语相同，且有be动词时，可省略主语和be动词。主语your friendship和谓语动词approach之间为被动关系，即完整的句子为when your friendship is approached in this way。省略之后为when approached in this way。故选D。9A【解析】考查状语从句的省略。句意：当被问及哪项活动在一周内最难放弃时，48%的人说听音乐。分析可知，本句为状语从句的省略。还原后为：48%was asked，省略了48%was 。故选A。10B

29、【解析】考查状语从句的省略、形容词。句意：虽然受到逐渐失明的影响，爱丽丝仍然能够写出作品。根据句意及句子结构可知，主从句的主语谓语是一致的，故第一空考查状语从句的省略。还原为：Alice wasaffected by gradual blindness。省略了Alice was 。根据句意及句子结构，第二空考查短语be capable of doing sth.，表示“有能力做某事”，第二空填capable，故选B。11B【解析】【分析】考查句子结构。句意：当我们进入办公室时，发现罗杰坐在一张桌子旁。分析句子和句意可知，本句为状语从句的省略，主从句的主语都为we，还原后为：When we we

30、re entering the office,we found Roger seated at a desk。故选B项。【点睛】12D【解析】考查状语从句的省略。句意：当学生们比较莫扎特音乐的法语版本和德语版本时，他们得出的结论是，法语版本表现得更加丰富多彩，情节更加轻松愉快。状语从句同时具备下列两个条件：主句和从句的主语一致，或从句主语为it；从句谓语有be动词的某种形式时，状语从句中的主语和be动词可以省略。分析句子可知，“When _ the French and German versions of the Mozart musical”是时间状语从句，结合选项，句子补充完整为“Whe

31、n students are comparing the French and German versions of the Mozart musical”，符合状语从句省略条件，省略主语students和are后保留现在分词comparing。故选D项。13C【解析】考查状语从句省略和不定式结构省略。句意：正在看电视时，我们听到门铃响了。根据“While watching television”可知，时间状语部分省略了主语和be动词，watch television的主语应该是人，主句的主语用we，hear the doorbell ring（听见门铃响）中，ring前省略不定式符号作hea

32、r的宾语补足语。故选C项。14A【解析】考查状语从句的省略。句意：和整个地球相比，再高的山也显得不高了。该句含有一个状语从句，原句是“When the highest mountain are compared with the size of the whole earth”，当状语从句的主语和主句主语相同，且含有be动词时，从句主语连同be动词可以一起被省略，故选A。15C【解析】考查状语从句的省略。句意：按照计划，我们这周六上午8点在白云山脚下集合。根据句子分析可知，we will gather at the foot of Baiyun Mountain near our school

33、 at 8:00 am this Saturday，as引导状语从句，完整的句式应该是“as it is scheduled”，表示这件事情“被安排”，所以要用被动be scheduled，省略从句中的it is，故为as scheduled。故选C。16A【解析】考查省略句。句意：我又矮又瘦，但是我跑得很快，我希望他们能接受我现在的样子。as作为连词，连接句子，句子和前面一致，可以省略，本句完整的句子应为I hope they will accept me as I am short and thin，故选A。17D【解析】考查省略和过去分词。句意：丹尼尔答应保守这个秘密，所以即使问他也不会

34、告诉任何人。此处是even though引导的让步状语从句，从句主语和主句主语都是he，和ask之间是被动关系，相同的主语和be动词可以省略，所以这里是过去分词作状语，且ask sb. to do sth.可以省略与前面相同的部分，只留下动词不定式符号to。故选D。【点睛】状语从句主谓成分的省略，须遵循下面原则：（一）当从句的主语与主句的主语一致时，从句可以省略主语，从句的谓语动词采用其V-ing结构。例如：Although working very hard, he failed in the final exam. (Although he worked very hard,)（二）当从句

35、的主语和主句的主语一致时，若从句的谓语动词是系动词be或包含be的某种形式，此时从句的主语和be动词通常可以一同省略。常见于以下几种形式:1、连词+形容词Whenever (she is) free, she often goes shopping.她有空就去逛商店。2、连词+名词While (he was) a young boy, he was always ready to help others.他在孩提时代就乐于助人。3、连词+现在分词While (she was) walking along the river bank, she was singing a pop song.她沿

36、着河堤边走边唱着流行歌曲。4连词+过去分词If (it is) well read, the book will give you much to think.5连词+不定式He stood up as if (he were) to say something.当时他站起来好像要说什么。6、连词+介词短语She looked anxious as though (she was) in trouble.她看上去很焦急,好像遇到了麻烦。18B【解析】考查省略和过去分词。句意：一些专家认为，学生一旦沉迷于电脑游戏，很可能会失去进步的机会。固定词组：be addicted to“对上瘾，沉迷于”。

37、此处是连词once“一旦”引导的条件状语从句的省略，且相同的主语和be动词可以省略，所以这里是过去分词作状语，addicted已经演变成了形容词，故选B。19C【解析】考查非谓语动词和省略。句意：他补充说，“如果有足够的时间，我肯定会做得更好。”此处give的逻辑主语与主句的一致是I，且give与I之间是被动关系，从省略了主语与be动词，只有given。故选C项。20B【解析】考查状语从句的省略。句意：除了恶劣的天气之外，还有其他原因导致他们没有按计划前往北京。此处是方式状语从句的省略，原句是as it is scheduled“如期，按预定时间”，通常省略it is，故选B。21encour

38、aged【解析】考查状语从句的省略。句意：在简所说的鼓励下，彼得走到舞台中央。当时间状语从句的主语与主句的主语一致，且有be动词时，可以省略从句主语和be动词，完整句子为After Peter was encouraged by what Jane said，此处省略Peter was，保留过去分词。故填encouraged。22absorbed【解析】考查省略句和固定搭配。句意：当我全神贯注于工作时，我可能会成功。分析句子结构，可知when引导状语从句时，主从句主语一致，从句含有be动词的形式，可以省略和主句相同的主语和be动词，从句完整为：When （I was） deeply absor

39、bed in work，be absorbed in全神贯注于，absorbed为过去分词形式相当于形容词，符合题意。故填absorbed。23spoken【解析】考查过去分词。句意：当你要求被说话的时候你不应该保持沉默。此处是until引导的状语从句的省略，spoken to 前省略了you are， spoken与主语you是被动关系，故填spoken。24inspired【解析】考查省略句。句意：虽然受到了老师的鼓励，但弗兰克仍然很难把自己推上讲台，讲述他的抑郁症痛苦。在though引导的状语从句中，当从句主语和主句主语一致且从句含有be的某种形式时，可省略从句的主语和be，从句完整形式

40、为Though Frank was inspired by the encouragement from his teacher，相当于省略了Frank was。故填inspired。25listening【解析】考查非谓语动词。句意：请一边听老师讲课，一边做笔记。祈使句主语是you，连词while引导的时间状语从句可以省略主语you和be动词。表示主动，用现在分词。故填listening。26tested【解析】考查状语从句的省略。句意：任何新冠病毒检测呈阳性的人都将享受政府免费医疗。分析句子结构可知，此处涉及到了once引起的条件状语从句的省略（主从句主语一致，从句含有be动词，可以省略从

41、句主语和be动词），此处完整句子为once anyone is tested positive for COVID-19 virus，可以省略anyone is，保留过去分词。故填tested。27painted【解析】考查省略句。句意：它的墙壁是崭新的，就像昨天刚粉刷过一样；富丽堂皇的地板纹路丝毫没有改变。as if引导的状语从句的主语和主句的主语一致，省略了从句的主语和be动词，完整的从句是as if they were painted yesterday，省略了they were。故填painted。28exercising【解析】考查状语从句的省略。句意：为了防止软组织损伤，运动时一定

42、要穿合适的衣服和设备。根据句型分析可知，这里考查状语从句的省略，补充完整从句应是when you are exercising,因从句主语和主句主语一致，且从句中还有be动词，所以可以把从句主语和be动词同时给省略掉写成when exercising。故填exercising。29treated【解析】考查状语从句的省略和过去分词。句意：如果处理得当，废物不会对环境造成危害。在if引导的条件状语从句中，若谓语部分含有be动词，而从句主语又跟主句主语相同，则从句中主语和be动词常一起省略。主语waste与treat之间为被动关系，所以用过去分词形式。故填treated。30exercising【

43、解析】【分析】考查状语从句的省略。句意：运动时一定要穿合适的衣服。当时间、条件状语从句的主语与主句主语一致，且由be动词时，可以省略从句的主语及be动词；分析可知，本句为时间状语从句的省略，完整形式为when you are exercising，习惯上省略you are。故填exercising。31questioned【解析】考查省略。句意：当被问到这个问题时，她说她还没有设定目标。在when引导的时间状语从句中，若谓语部分含有be动词，而主语又跟主句主语相同时，则从句中主语和be动词常一起省略。主语she与question之间为被动关系，所以用questioned。故填questione

44、d。32given【解析】考查状语从句的省略。句意：如果再给我一次机会，我可以做得更好。if引导的条件状语从句中，若谓语部分含有be动词，而主语又跟主句主语相同时，则从句中主语和be动词常一起省略。主语I与give之间是被动关系，所以用过去分词形式。故填given。33heated【解析】考查时间状语从句的省略。句意：当被加热时，水可以变成蒸汽。分析句子可知，when引导的时间状语从句的主语和主句主语都是water，且water和heat之间是被动关系，陈述事实用一般现在时的被动语态，从句可以写成When water is heated。结合语法规则，时间状语从句和主句主语一致，且从句含有be

45、动词，这时可以省略从句中的主语+be动词。故填heated。34planned【解析】考查状语从句的省略。句意：按照计划，会议将于下月举行。as引导状语从句，当状语从句中的主语和主句的主语一致时，可以省略状语从句中的主语和be动词，as引导的状语从句为“as the meeting is planned”，所以省略主语和be动词，保留过去分词planned。故填planned。35taken【解析】考查状语从句的省略。句意：如果按时服用，这种药很有效。在when, while, if, as if, though(或although), as, until, once, whether, un

46、less, where等连词连接的状语从句中，常省略从句中跟主句一致的主语和be动词。结合句意，分析子可知，“if (take) on time.”是条件状语从句，原句为“if the medicine is taken on time.”，符合状语从句省略条件，省略the medicine is后，应保留过去分词taken。故填taken。36necessary【解析】【分析】考查状语从句的省略。句意：如果有必要，我将尽快完成我关于美国诗歌的报告。根据句型分析可知，本句考查状语从句的省略，还原出完整从句为if it is necessary，其中it is 可省略写成if necessary

47、，表“如果有必要”，所以此处应用形容词结构形式。故填necessary。37calm【解析】考查动词。句意：当你感到怒不可遏时，这些药丸可以帮助你平静下来。此处为短语help sb. (to) do sth.。故填calm。38leave【解析】考查固定句式。句意：他总是喜欢早起，而不是把事情拖到最后一分钟。此句包含固定结构“prefer to dorather than do”结构，意为“宁愿做而不”，结合句中提示，所以此处填动词原形leave。故填leave。39walking【解析】考查状语从句的省略。句意：在街上散步的时候。我听到有人叫我的名字。分析句子可知walk作从句的谓语，由wh

48、ile和语境可知，时态应用过去进行时，所以从句完整句式为：while I was walking along the street；从句主语和主句主语一致，谓语动词含有be动词时，此处可用状语从句的省略形式，省略主语和系动词was，故填walking。40climbing【解析】【分析】考查省略句。句意：爬山时，我们享受着温暖的阳光和美丽的景色。在while引导的时间状语从句中，当从句主语和主句主语一致且从句含有be的某种形式时，可省略从句的主语和be，从句完整形式为“While we were climbing the mountain”，相当于省略了we were。故填climbing。4

49、1taken【解析】【分析】考查状语从句的省略。句意：这些药在晚饭前服用后，要放在您儿子够不着的地方。分析句子可知，空格处是时间状语从句，结合语意可知，从句中主语与主句主语一致，且从句中应使用被动语态，原句为：“After the medicine is taken before dinner, the medicine should be put beyond your sons reach.”。在时间状语从句中，当从句主语与主句主语一致且含有be的某种形式时，可以省略从句中主语和be，故填taken。42combined【解析】【分析】考查状语从句的省略。句意：当与酒精混合使用时，一些药物

50、会产生极其危险的副作用。这里是when引导的时间状语从句的省略，省略了相同的主语和be动词，完整句子是：When it is combined with alcohol, some medicine can have extremely dangerous side effects.其中句子主语some medicine和combine之间是被动关系，从句中是一般现在时的被动语态。故填combined。43accompanied【解析】考查省略句。句意：孩子们在父母的陪同下可以进入体育场。分析句子可知，此处是when引导的状语从句，从句的主语和主句的主语Children一致，可用代词they代

51、替，且由by their parents可知此处是被动语态，时态是一般现在时，此时可省略when从句的主语和be代词，即when (they are) accompnied by their parents。故填accompanied。44rid【解析】考查省略句。句意：如果改掉那些不良的学习习惯，你就会进步很快。短语be rid of，意为“摆脱”。在状语从句中，从句的主语与主句一致，从句中用到了be动词时，可以省略从句的主语和be动词。分析句子可知，本句为if条件句的省略，补充完整的句子为，If you are rid of those bad study habits, you will

52、 make rapid progress. 所以从句中省略了you are，故填rid。45stay【解析】考查动词。句意：道路被封锁了。因此对于我来说除了待在家里什么都不能做。have nothing to do but do sth.“除了做某事无事可做”，but是介词，接不定式作宾语，前面有实义动词do的形式，省略不定式符号to，故填stay。【点睛】46gained【解析】考查省略句。句意：这些技能，一旦被获得，将对英语学习有巨大用处。分析句子结构可知此处为once引导的时间状语从句的省略形式，其完整形式为：once they are gained,在状语从句中，当主句的主语和从句的主

53、语一致的时候(主语都是The skills)，省略从句的主语(they)和be动词(were)。故填gained。47crossing【解析】考查状语从句的省略。句意：过马路时，你越小心越好。在状语从句中，如果从句的主语与主句相同，且谓语动词为be动词时，省略主语和be动词。那么完整的状语从句为when you are crossing the road，省去主语和be动词后为when crossing the road。故填crossing。48painted【解析】考查状语从句的省略。句意：它的墙壁焕然一新，仿佛昨天粉刷过一样。as if引导状语从句时，从句的主语和主句的主语一致，且从句谓

54、语含有be动词时，可以把从句主语和be省略。根据句意，as if引导的从句完整表达是：as if the walls were painted yesterday，省略后则为：as if painted yesterday，故填painted。49beaten【解析】【分析】考查动词和状语从句的省略。句意：虽然被对方打败了，但我们并不气馁，互相鼓励。在状语从句中，当从句的主语与主句的主语一致，且从句中包含be动词时，可以省略状语从句的主语和be动词。结合句意，分析句子可知，“Although_ (beat) by the opposite team”是句中时间状语从句，原句为：Although

55、 we were beaten by the opposite team，符合省略条件，可省略 we were。故答案是When asked about his job。50waiting【解析】考查的是省略句和非谓语动词。句意：在等待公交车的时候，他遇见了一位老朋友。动词wait与主语he构成主动关系，所以使用现在分词在句中做伴随状语，所以要填waiting。51writing【解析】考查状语从句省略。句意：初学者在写作时犯错误是很自然的。while是连词，后加完整的句子，根据句意，从句完整表述是while they(=beginners) are writing。从句主语和主句主语一致，且

56、从句谓语动词含有be动词，可以省略从句的主语和be动词。故填writing。52lying【解析】【分析】考查省略句。句意：王先生躺在床上时，听到很响的敲门声。在while引导的时间状语从句中，当从句主语和主句主语一致且从句含有be的某种形式时，可省略从句的主语和be，从句完整形式为“while Mr. Wang was lying in bed”，相当于省略了Mr. Wang was。故填lying。53taking【解析】【分析】考查省略句。句意：服药时要仔细按照药瓶上的说明操作。分析句子结构，主句为祈使句，主语为you，when引导的时间状语从句，和主句主语一致，省略了从句的主语和be动

57、词，完整的从句是when you are taking the medicine，此处省略you和are。故填taking。54comparing【解析】【分析】考查省略句。句意：当在比较不同的语言时，我们可以了解到不仅有一些差异，而且有许多相似之处。在when引导的时间状语从句中，当从句主语和主句主语一致且从句含有be的某种形式时，可省略从句的主语和be，从句完整形式为“When we are comparing different languages”，相当于省略了we are。故填comparing。55crossing【解析】【分析】考查状语从句的省略。句意：她父亲告诉她过马路时要小心

58、。分析句子成分可知，“when_(cross) the street”做时间状语，由when引导的时间状语从句中，根据一定规则经常可用省略形式，即把从句的主语和be动词省略，该状语是“when (she was) crossing the street”的省略，故填crossing。56faced【解析】考查省略句。句意：当面对困难时，你可能会发现很难克服它们，但只要你不放弃，你就能成功。在when引导的时间状语从句中，当从句主语和主句主语一致且从句含有be的某种形式时，可省略从句的主语和be动词，本从句的完整形式为：when you are faced with difficulties，相

59、当于省略了you are，故填faced。57asked【解析】考查省略句。句意：当被问及他对教学工作的看法时，菲利普说他觉得很有趣，也很有收获。在when连接的状语从句中，当主句的主语和从句的主语一致时，可以省略从句的主语和be动词。还原从句为When (he was) asked for his views about his teaching job，所以设空词填asked。故填asked。58accepted【解析】【分析】考查状语从句的省略。句意：如果你被录用，我们会很快通知你的。在if引导的条件状语从句中，当从句主语和主句主语一致，且含有be的某种形式时可省略从句的主语和be，本句

60、的完整形式为：If you are accepted for the job，省略了you are，故填accepted。59exploring【解析】考查状语从句的省略。句意：在探索这座新城市的过程中，她发现了许多令人惊奇的事情。在while引导的时间状语从句中，当从句主语和主句主语一致且含有be的某种形式时，可省略从句的主语和be，she与explore之间是主动关系，此处表示过去正在进行的动作，完整形式为：while she was exploring the new city，此处相当于省略了she was。故填exploring。60to say【解析】考查不定式。句意：他举起手好像

61、要说些什么。as if to do sth.好像要做某事，as if to do是as if+与主句一致的主语+将来时的省略，表示未发生的动作用不定式，故填to say。61breathed【解析】考查动词的过去分词。句意：如果被吸入，它们会导致肺癌等严重疾病。此处是if引导的省略句，根据主句主语是they，时态是一般现在时，由句意可知从句的主语也是they，此处是省略了if从句的主语和be动词，即If (they are) breathed in。故填breathed。62working【解析】【分析】考查省略句。句意：有一次，在一家商店通宵工作时，他让一个无家可归的人在他的卡车上睡觉。分析

62、可知，while引导的时间状语从句进行了省略，完整形式为“while he was working overnight at a store”，如果从句的主语和主句的主语一致,且从句的谓语含有be动词的某种形式（am/is/are/was/were），可同时省略从句的主语和be动词的某种形式。故填working。63left【解析】考查状语从句的省略。句意：电子游戏如果使用不当就会产生不良影响。当时间、条件状语从句的主语与主句主语一致，且有be动词时，可以省略从句的主语及be动词，此处的完整句子是if video games are left in the wrong hands，可以省略 v

63、ideo games are。故填left。64accepted【解析】考查状语从句的省略。句意：如果你被录用干这份工作的话，你会很快被通知到的。条件状语从句的主语为you, accept和you为被动关系，需要用被动语态，当状语从句的主语和主句的主语一致，且从句谓语部分有be动词时，状语从句的主语和be动词可以省略，补充完整为If you are accepted for the job，故答案为accepted。65asked【解析】考查被动语态和省略。句意：如果其他人让你帮忙照看行李，立刻通知警察。分析句子结构，这里是条件状语从句的省略句，“你”和“要求”之间是被动关系，用被动语态，原句

64、为If you are asked to look after luggage someone else, inform the police at once.从句主语与主句主语相同，且含有be动词，可以把从句主语连同be动词一起省略，所以填asked。66reading【解析】考查状语从句的省略。句意：这并不像听起来那么难，而且它比任何其他方法都要好得多，因为你在阅读一篇有趣的文学作品的同时提高了词汇量。在while引导的时间状语从句中，当从句主语与主句主语一致且含有be的某种形式时，可省略从句的主语和be，本句的完整形式为：you improve your vocabulary while

65、 you are reading an interesting piece of literature，此处相当于省略了you are，故填reading。67Concerned【解析】考查非谓语动词和省略。句意：因为担心这个学生，老师打电话给他的家长想查明他缺课的原因。be concerned about的意思是“担心”，固定短语。从句的主语和主句的主语一致，所以从句省略了主语和系动词be，句首单词首字母需大写。故填Concerned。68shot【解析】考查省略句。句意：在电影中，那个演员纵身跳下马背，好像被枪杀了。本句为状语从句的省略，还原后为：as if （he were ）shot

66、to death。故填shot。69asked【解析】考查状语从句的省略。句意：当被问及他成功的秘诀时，这位著名的运动员说，他的成功和快乐很大程度上归功于他的妻子和孩子。分析句子可知，本句为状语从句的省略，还原为：when the famous athlete is asked。因从句主语和主句主语相同，且有be 动词，所以主语和be动词被省略。故填asked。70surprised【解析】考查状语从句的省略。句意：虽然老人看到我们很惊讶，但他还是给了我们热烈的欢迎。当时间、条件、让步状语从句的主语与主句主语一致，且有be动词时，可以省略从句的主语及be动词；本句完整句型为Though the old man was surprised to see us, the old man gave us a warm welcome.此处可以省略从句中的the old man was。故填surprised。