1、课时作业51Unit 2Cloning.短语填空1It was apparent that his views _ greatly _ those of his parents.2Thinking they have grown up，the boys _ being treated like children.3According to the statistics，there were 247 votes _and 150 against.4Happily，they have finally _ their debts after three years of hard work.5Onl
2、y by hard work can we _ our hometown _.6The young scientist is greatly honoured for his _ in the space science.7Keep on working hard like this，and your research _ obtain great success.8He is _ by his not being chosen to be a volunteer of the National Games.9He went back to take part in the great ins
3、pection of the troops _ his father was buried.10_I receive some junk mails，which makes me annoyed.答案1.differed；from2.object to3.in favour of4.paid off5.bring；back to life6.breaking through7.is bound to8.cast down9.shortly after10.From time to time.单词拼写1I was only anxious that a _(直接的) agreement shou
4、ld be reached.2I want you to _(承担)all the responsibility.3I wouldnt think of _(打扰) them at this hour of the night.4High school boys in the country are _(禁止)to wear long hair.5From now on any violation of the _(规章，法规) must be cruelly punished.6She picked a large bunch of flowers for table _(装饰)7After
5、 a long _(争论)，we decided where to go for our holiday.8Id like to accept this item，seeing (that) the price is _(合理的)9The monthly expenditure of our family is four hundred dollars _(总共，共计)10Tell me the _(确切的) time when the next train will arrive.答案1.straightforward2.undertake3.disturbing4.forbidden5.r
6、egulation6.decoration7.argument8.reasonable9.altogether10.exact.单项填空1The suggestion they all objected to _to be effective finally.A. proving B. proveC. had proved D. proved解析考查动词形式与句子结构的判断能力。题意：他们都反对的建议最终证实是很有效的。句子的主语是the suggestion缺少谓语动词，故选D。答案D2The students are forbidden, unless they have special
7、passes, _after 11 pm.A. in staying out B. to stay outC. staying out D. stay out解析forbid sb.to do sth.“禁止某人做某事”，为固定短语，此处为其被动结构。答案B3I took a risk to carry out the project，but it _in the end.A. paid up B. paid outC. paid back D. paid off解析考查动词短语辨析。A项表示“付清欠款”；B项表示“放松；付出大笔款项(为某事)”；C项表示“偿还”；D项表示“(计划、尝试、艰苦
8、的工作最后终于)取得成功”。结合语境，D项为正确答案。答案D4He soon realized that the task he had _was beyond him.A. undertaken B. workedC. contributed D. made解析题意：他很快就认识到，他所承担的任务是他力所不及的。undertake a task表示“承担/从事任务或者工作”，其他选项搭配及意义均不正确。答案A5I_it to my teacher to take a betterpaid post if I can get one.A. owe B. belongC. give D. don
9、ate解析题意：如果我能得到较好的职位，我应感激我的老师。owe.to.受恩惠，感激，符合语意要求。答案A6It is clear that if we read English articles every day, we_improve our English.A. are bounded to B. are bound toC. bound D. bound to解析题意：很显然，如果我们天天读英语文章的话，我们一定能提高英语的。be bound to的意思是“一定”。答案B7I cant say which wine is bestits a(n) _of personal taste
10、.A. affair B. eventC. matter D. variety解析Its a matter of.意为“是的问题”。答案C8To my relief, my son has begun to_his missing lessons.A. make up for B. look up toC. put up with D. fit in with解析考查动词短语辨析。A项意为“弥补；补偿”，符合语境。B项意为“尊敬”；C项意为“忍受”；D项意为“适合，符合”，三者均不合题意。答案A9Dont _your father about it now; he is very tired.
11、A. care B. botherC. set D. get解析bother sb.about麻烦某人。题意：现在不要拿这个去麻烦你父亲，他很累了。答案B10After questioning the man for six hours，the police_ the information they wanted.A. seized B. recoveredC. appealed D. obtained解析题意：警察审问了这个男人6个小时后才得到了他们想要的信息。seize抓住；recover恢复；appeal呼吁，控诉；obtain得到。答案D11Scientists have made
12、a(n) _in the search for a cure for cancer.A. expectation B. breakthroughC. regulation D. procedure解析make a breakthrough作出突破性进展。答案B12I am _your suggestion _we should spend more time on this project.A. in favour of；which B. in honor of；thatC. in favour of；that D. in honor of；which解析题意：我很赞成你的建议那就是我们应该在
13、这个工程上花费更多的时间。in favour of赞成；in honor of向表示敬意；为纪念。第二个空为that引导的同位语从句。答案C13John was _to learn the news that he was rejected by the committee.A. cast down B. cast offC. cast about D. cast away解析cast down使沮丧；cast off扔掉；cast about设法寻找；cast away扔掉；抛弃。答案A14The medicine wont cure herit _stops the pain.A. har
14、dly B. merelyC. likely D. barely解析题意：这个药不能使她痊愈，只能止痛。merely仅仅；只不过。hardly几乎不；likely很可能；barely几乎不。答案B15They tried their best to save the drowning man but _.A. in advance B. in vainC. in cash D. in size解析in vain徒劳，符合题意。in advance提前；in cash用现金；in size按面积计算。答案B.完形填空Even though it was only October，my stude
15、nts were already whispering about Christmas plans.With each passing day everyone became more _1_，waiting for the final school bell.Upon its _2_everyone would run for their coats and go home，everyone except David.David was a small boy in ragged clothes.I had often _3_what kind of home life David had，
16、and what kind of mother could send her son to school dressed so _4_for the cold winter months，without a coat，boots，or gloves.But something made David _5_.I can still remember he was always _6_a smile and willing to help.He always _7_after school to straighten chairs and mop the floor.We never talked
17、 much.He_8_just simply smile and ask what else he could do，then thank me for letting him stay and slowly_9_home.Weeks passed and the _10_over the coming Christmas grew into restlessness until the last day of_11_before the holiday break.I smiled in _12_as the last of them hurried out the door.Turning
18、 around I saw David _13_standing by my desk.“I have something for you.”he said and _14_from behind his back a small box._15_it to me，he said anxiously.“Open it.”I took the box from him，thanked him and slowly unwrapped it.I lifted the lid and to my _16_saw nothing.I looked at Davids smiling face and
19、back into the box and said.“The box is nice，David，but its_17_”“Oh no it isnt.” said David. “Its full of love.My mum told me before she died that love was something you couldnt see or touch unless you know its there”Tears filled my eyes _18_I looked at the proud dirty face that I had rarely given_19_
20、to.After that Christmas，David and I became good friends and I never forgot the meaning _20_the little empty box set on my desk.1A.anxious B. courageousC. serious Dcautious解析anxious“焦急的；急切的”；上文中提到虽然才十月份，学生们已经私下讨论圣诞节的计划了，所以学生们应该是焦急地等着最后的铃声。答案A2A.warning BringingC. calling D. yelling 解析句子“Upon its”中its
21、指的是上文中的school bell，所以只能和ring搭配。warn“警告”；call“打电话”；yell“喊；叫”。答案B3A.scolded BwonderedC. realized Dlearned解析wonder“想知道；纳闷”。大卫穿得很破，“我”很想知道他的家庭生活是什么样子。scold“责骂”；realize“意识到”；learn“得知”。答案B4A.modestly BnaturallyC. inaccurately D. inappropriately解析inappropriately“不适当地；不适合地”。根据下文中的the cold winter months，with
22、out a coat，boots，or gloves可知大卫穿得不合时宜。modestly“谦虚地”；naturally“自然地”；inaccurately“不精确地；有错误地”。答案D5A.popular B. upsetC. special Dfunny解析special“特殊的；特别的”。上文中提到大卫穿得不好，下文中提到“我”能记得的是大卫脸上一直挂着微笑，总是乐于助人，说明他与众不同。popular“深受喜欢的；流行的”；upset“情绪低落的；不安的”；funny“滑稽可笑的”。答案C6A.expressing BdeliveringCwearing D. sharing解析wea
23、r“呈现；显现；脸上露出(某种神态)”，wear a smile“面带微笑”。express“表达”；deliver“传递；递送”；share“分享”。答案C7A.practised BwanderedC. studied Dstayed解析stay“留下”，stay after school“放学后留下来”。上文中提到大卫乐于助人，所以此处表示大卫放学后总是留下来摆齐凳子，拖地。practise“练习”；wander“闲逛”；study“学习”。答案D8A.would B. shouldCmight Dcould解析would“老是；总是”。我们说话不多，但他总是微笑着并且问还能干什么。sh
24、ould“应该”；might“可能”；could“能够”。答案A9A.aim at Bturn toCput off D. head for 解析head for“朝进发；前进”。大卫打扫完教室，感谢我留下他，然后就回家了。aim at“瞄准”；turn to“转向”；put off“推迟”。答案D10A.argument BexcitementCmovement D. judgment解析excitement“兴奋；激动”。上文中提到学生十月份就焦急地等待着圣诞节的到来，到放假前的那天，期待圣诞节到来的“兴奋”之情已经变成了不安。argument“争论”；movement“运动”；judgm
25、ent“判断力，识别”。答案B11A.school B. yearCeducation Dprogram解析下文中before the holiday break“放假前”，显然说明应该是school day。其余三项都不符合上下文的语境。答案A12A.relief BreturnC. vain Dcontrol解析relief“轻松；宽慰”，in relief“轻松地；宽慰地”。当所有的学生走出教室后，“我”宽慰地笑了。in return“作为回报”；in vain“徒劳”；in control“控制住”。答案A13A.weakly BsadlyCquietly Dhelplessly解析q
26、uietly“静静地”。从上文中可知大卫不像其他人那样激动，他只是微笑，说话不多，所以此处应是大卫静静地站在讲桌旁。weakly“虚弱地”；sadly“难过地”；helplessly“无助地”。答案C14A.searched B. foundC. raised D. pulled解析pull“拽；拉”。大卫说他有东西给老师，此处应该是大卫从身后把那个盒子拉出来。search“寻找”；find“找到；发现”；raise“举起；抬起”。答案D15A.Holding B. HandingCSending D. Leaving解析hand sth.to sb.“把交给某人”。大卫把盒子交给了“我”，并
27、急切地让“我”打开它。hold“拿着；握着”；send“送；寄”；leave“把留给”。答案B16A.delight B. expectationC. appreciation D. surprise解析surprise“吃惊；惊讶”。送给别人礼物，盒子里应该有东西，而老师打开盒子后发现盒子是空的，所以应该感到惊讶。delight“高兴”；expectation“企盼”；appreciation“感谢”。 答案D17A.cheap BemptyC. useless D. improper解析empty“空的”。由上文中的saw nothing和下文中的Its full of love，可知B项
28、正确。improper“不合适的”。答案B18A.as BuntilC. because Dthough解析as“当的时候”，引导时间状语从句。老师听了大卫的话后被感动了，看着这个平时自己不太关心的孩子，老师眼里充满了眼泪。until“直到”；because“因为”；though“虽然”。答案A19A.advice B. supportC. attention Dcommand解析attention“留心；注意；关心”。从上文中的We never talked much可知，作者对大卫没有注意(关心)太多。advice“建议”；support“支持”；command“命令”。答案C20A.fr
29、om B. behindCover Dtowards解析behind“在后面”。由整篇文章可知，空盒子背后的意义令作者终身难忘。答案B.阅读理解Food sometimes gets poisoned with harmful things.A person who eats such food can get an illness called food poisoning.Food poisoning is usually not serious，but some types are deadly.The symptoms of food poisoning usually begin w
30、ithin hours of eating the poisoned food.Fever is one of the most common symptoms. Certain microorganisms(微生物)cause most types of food poisoning.Bacteria and other microorganisms can poison eggs，meat，vegetables，and many other foods.After entering the body，these tiny living things release(释放)poisons t
31、hat make people sick. Some chemicals can also cause food poisoning.They are often added to food while it is being grown，processed，or prepared.For example，many farmers spray chemicals on crops to kill weeds and insects.Some people may have a bad reaction to those chemicals when they eat the crops. So
32、me plants and animals contain natural poisons that are harmful to people.These include certain kinds of seafood，grains，nuts，seeds，beans，and mushrooms. When people handle food properly，the risk of food poisoning is very small.Microorganisms multiply rapidly in dirty places and in warm temperatures.Th
33、is means that people should never touch food with dirty hands or put food on unwashed surfaces.Food should be kept in a refrigerator to stop microorganisms from growing.Meat needs to be cooked thoroughly to kill any dangerous microorganisms.People should also wash food covered with chemicals before
34、eating it.Finally，people should not eat wild mushrooms or other foods that grow in the wild.Some of these foods may contain natural materials that are poisonous to humans.In addition，some types of fish can be poisonous. Most people recover from food poisoning after a few days of resting and drinking
35、 extra water.If people eat natural poisons，they must go to the hospital right away to have their stomachs emptied.1Which of the following statements is NOT true?AFood when poisoned can make people sick.BFood poisoning means death.CFood poisoning comes in varieties.DFood poisoning can be serious.解析细节
36、理解题。根据第一段第三句“Food poisoning is usually not serious，but some types are deadly.”可知选项B“食物中毒就意味着死亡”是错误的，因此选项B为本题的正确答案。答案B2We know from the passage that the symptoms of food poisoning _.Aare always accompanied by a feverBare too common to be notedCcan be noticed within hoursDcan be ignored解析细节理解题。根据第一段的倒
37、数第二句话“The symptoms of food poisoning usually begin within hours of eating the poisoned food.”可知在食物中毒的数小时内便会出现中毒症状，所以选项C正确。答案C3Food poisoning can be caused by all the following EXCEPT _.Asome chemicals Blow temperaturesCsome tiny living thingsDcertain natural materials解析细节理解题。根据第五段第四句“Food should be
38、kept in a refrigerator to stop microorganisms from growing.”可知冰箱里的温度即低温会阻止微生物的生长，因此不可能是导致食物中毒的原因之一。所以选项B正确。答案B4From Paragraph 5，we can learn that _.Amushrooms should not be eatenBvegetables are safer than meat and seafoodCnatural poisons are more dangerous than chemicalsDdifferent types of food should be handled differently解析细节理解题。根据第五段，选项A说蘑菇不能吃，而文中是说野蘑菇不能被食用，所以错误；选项B在文中未被提到；选项C说由于吃了本身有毒的食物而中的毒比化学物质导致的中毒更严重，这一点在第五段也没有提到；所以选项D说不同类型的食物应该用不同方法处理，是正确的答案。答案D