1、课时作业5Unit 2Section Discovering Useful Structures.单句语法填空1To our delight, many endangered species _ (protect) by the government now.2Daisy has found that a lot of antelopes _ (hunt) and killed for the wool beneath their stomachs now.3Would you please keep silent? The weather report _ (broadcast) and I
2、 want to listen.4Someone lends you his car while yours _ (repair) at the garage.5New Years Day is coming and Childrens Park _ (prepare) for it.6More than one patient _ (take) care of by the nurse at the moment.7The meeting which _ (hold) now is of great importance.8She is one of the girls in our cla
3、ss who _ (train) for the coming match now.阅读理解AWhen dogs get lonely，they like keeping themselves busy by making a big mess around the house and that doesnt really sit well with their owners. Thats why one German radio host, who also happens to be a dog owner came up with the idea for a programme des
4、igned to relax dogs and make them feel like they arent alone.When 30yearold Stephan Stock, a radio host at RadioTon, in Germanys BadenWrttemberg region, announced the creation of a programme aimed at dogs, everyone thought it was just a clever April Fools trick. However, it wasnt. For the past three
5、 and a half months, Hallo Hasso has been pumping out music for lonely dogs both on the radio and online.Stock says he was inspired to create the special programme by his pet dog, Layla, who would sometimes get so bored when left alone that she would keep herself busy by making a big mess around the
6、house. He and his colleagues at RadioTon started researching what kind of music usually appeals to dogs, and learnt that it should have as little drum and electric guitar as possible, and should be very slow.“Its not about keeping dogs quiet，” Stock said about Hallo Hasso. “Its more about the dog fe
7、eling hes not alone.” He adds that Layla isnt as restless since listening to Hallo Hasso, and has become relatively quiet, even letting him take a nap (打盹儿) to the music from the radio.Hallo Hasso is only available in BadenWrttemberg, via radio, but if youd like to see if it can calm your fourlegged
8、 pet, the programme can also be accessed online here. Just press the “play” arrow at the top of the page and let the music work its magic. If this doesnt work, theres always Dog TV.1What do lonely dogs usually do?ABark fiercely.BLie quietly.CCreate surprise. DCause damage.2How did people respond to
9、Stocks announcement of a programme for dogs?AThey thought poorly of it.BThey didnt take it seriously.CThey showed great interest in it.DThey eagerly expected its broadcast.3What can we know about Hallo Hasso from the text?AIts accessible only by radio.BIt aims at keeping dogs quiet.CIt has no specif
10、ic limit on music types.DIts a product of Stocks own life experience.4Where can we most probably read this text?AOn a webpage. BIn a newspaper.CIn a pet magazine. DIn a research report.BWith their furry round heads and big black eyes, Zhongzhong and Huahua look just the same as any other monkey. But
11、 they happen to be the worlds first cloned monkeys.Years ago, scientists used cloning techniques to produce Dolly, the worlds first cloned mammal (哺乳动物). They now used the same technique to produce the monkeys in China.In animal cloning, animals are produced in a lab by using DNA that is taken from
12、the cells of a naturallyborn animal. To clone Zhongzhong and Huahua, scientists from the Chinese Academy of Sciences first removed the nucleus (细胞核) from a monkeys egg cell. They then put another nucleus taken from the monkeys body cells into the egg cell. The newlyformed egg was put into the womb (
13、子宫)of a female monkey. Finally, Zhongzhong and Huahua were born.The cloning process is hard, especially removing nucleus. It needs to be done in a fast and precise (精确的) way. The faster you do it, the less damage is done to the egg, according to CAS. Scientist Liu Zhen spent three years practising r
14、emoving the nucleus.Unlike common monkeys, cloned monkeys have the same DNA as each other. When doing experiments on them, scientists can easily know that certain results are caused by different treatments, rather than different genes.According to Sun Qiang from CAS, most drug trials (药物试验) are done
15、 on lab mice. However, drugs that work on mice might not work on humans. The two species are very different.“Monkeys and humans are closely related and testing on monkeys is supposed to be as effective as testing on humans，” Sun added.5What can we learn about Zhongzhong and Huahua?AThey are naturall
16、yborn monkeys.BThey are the worlds first cloned mammals.CThey are the worlds first cloned monkeys.DThey are twin sheep that were born by Dolly.6What do we know about the two monkeys?AThey look different from other monkeys.BThey have the same DNA.CTheir body cells dont have any nucleus.DThey can live
17、 for only three years.7What can we learn from Paragraph 4?ARemoving the nucleus is difficult.BThe cloning process is very safe.CIt took three years to remove the nucleus.DIt is impossible to clone other animals.8Why do scientists want to do drug tests on monkeys?ABecause its easier to use them for t
18、ests.BBecause there are not enough mice.CBecause drugs work well on monkeys.DBecause monkeys are similar to humans.完形填空A little boy told his mother that there was a teacherparent meeting in his school. To the little boys _1_， she said she would go. This would be the first time that his classmates an
19、d teacher met his mother and he felt _2_ of her appearance. Although she was a beautiful woman, there was a severe scar (伤疤) that _3_ nearly the entire right side of her face. The boy never wanted to _4_ why or how she got the scar.At the meeting, the people were _5_ by the kindness and natural beau
20、ty of his mother in spite of the scar, but the little boy was still embarrassed (尴尬的) and _6_ himself from everyone. He, however, _7_ a conversation between his mother and his teacher.The teacher asked _8_， “How did you get the scar on your face？”The mother replied, “When my son was a baby, he was i
21、n a room that caught fire. Everyone was too afraid to go in because the fire was out of _9_， so I went in. As I was running toward his bed, I saw a piece of wood coming down and I placed myself over him trying to protect him. I was knocked _10_ but fortunately, a fireman came in and saved both of us
22、.” She _11_ the burned side of her face. “This scar will be _12_， but until this day, I have never _13_ what I did.”At this point, the little boy came out running toward his mother with tears in his eyes. He held her in his arms and felt her great _14_ of sacrifice (牺牲). He held her hand _15_ for th
23、e rest of the day.1A.enjoyment BdisappointmentCsurprise Dsorrow2A.sick BashamedCafraid Dtired3A.included BpassedCcovered Dshaded4A.talk about Bthink aboutCcare about Dbring about5A.impressed BshockedCexcited Dcomforted6A.hid BprotectedCseparated Descaped7A.understood BremindedCheard Dlearned8A.caref
24、ully BangrilyCnervously Danxiously9A.control BorderCdanger Dfocus10A.helpless BhopelessCsenseless Duseless11A.hated BshowedCwiped Dtouched12A.ugly BpermanentCserious Dfrightening13A.forgotten BrecognizedCconsidered Dregretted14A.honour BspiritChappiness Dpride15A.quietly BslightlyCtightly Dsuddenly课
25、时作业5.单句语法填空1are being protected2.are being hunted3.is being broadcasted4.is being repaired5.is being prepared6.is being taken7is being held8.are being trained.阅读理解A【语篇解读】本文是一篇说明文，介绍了一款专门为宠物狗制作的节目，节目中播放的音乐可以让独自在家的宠物狗不再感到孤独，以避免其制造混乱。1答案与解析：D细节理解题。根据第一段的they like keeping themselves busy by making a big
26、 mess around the house可知，当狗孤独时，它常会制造混乱，造成一些破坏。故选D项。2答案与解析：B细节理解题。根据第二段的everyone thought it was just a clever April Fools trick可知，在刚开始时，人们认为创办这个节目只是一个愚人节玩笑，可见人们没有把它当回事。故选B项。3答案与解析：D细节理解题。根据第三段的Stock says he was inspired to create the special programme by his pet dog, Layla.可知，施托克创建这个节目是源于他在自己的生活经历中受到
27、的启发。故选D项。4答案与解析：A推理判断题。根据最后一段的the programme can also be accessed online here. Just press the “play” arrow at the top of the page and let the music work its magic可推知，这篇短文最可能来自于网页。故选A项。B【语篇解读】本文是一篇说明文。经过艰难的研究攻关，中国科学院取得重大突破，在国际上首次实现了非人灵长类动物的体细胞克隆。中中和华华成为世界上首对克隆猴。5答案与解析：C细节理解题。由第一段的Zhongzhong and Huahua
28、 look just the same as any other monkey. But they happen to be the worlds first cloned monkeys.可知，中中和华华是世界上首对克隆猴。故选C项。6答案与解析：B细节理解题。由倒数第三段第一句Unlike common monkeys, cloned monkeys have the same DNA as each other.可知，这对克隆猴的DNA彼此相同。故选B项。7答案与解析：A细节理解题。由第四段的The cloning process is hard，especially removing
29、nucleus.以及Scientist Liu Zhen spent three years practising removing the nucleus.可知，克隆过程很难，尤其是移除细胞核，它需要以快速而精确的方式完成。科学家刘真花了三年时间练习移除细胞核，故选A项。8答案与解析：D细节理解题。根据最后一段的Monkeys and humans are closely related and testing on monkeys is supposed to be as effective as testing on humans可知猴子和人类比较接近，且人们认为对猴子的实验和对人类的实
30、验一样有效，所以科学家想用猴子做药物实验。故选D项。.完形填空【语篇解读】一个小男孩因妈妈脸上有一块疤痕而不愿妈妈去开家长会，但当他得知这块疤痕的由来时，小男孩感到很惭愧和感动。从此文中我们也感受到了母爱的伟大。1答案与解析：B从下文可知，因为妈妈脸上有疤痕，小男孩并不希望他妈妈去开会。所以当他妈妈答应去时，他感到失望。故B项正确。2答案与解析：B从下文中的“but the little boy was still embarrassed(尴尬的)”可知妈妈脸上有疤痕，男孩对此感到难为情。3答案与解析：C妈妈脸上的疤痕覆盖(covered)了几乎整个右半边脸，所以男孩不希望妈妈到学校参加家长会
31、，也不愿意谈论这个事情。故C项正确。4答案与解析：A妈妈脸上的伤疤是男孩不想谈论的话题。5答案与解析：A在家长会上，尽管男孩的妈妈脸上有疤痕，但人们对她的善良和美丽印象深刻。impress“使留下深刻印象”。6答案与解析：A根据文章第一段可知，男孩对妈妈的疤痕感到难为情，所以一直不愿意面对。所以即使别人对他妈妈的印象很好，他仍然躲着不愿意出来。故A项正确。7答案与解析：C根据下文中的“the little boy came out running toward his mother”可知，此处指的是男孩听到了妈妈和老师的对话。故C项正确。8答案与解析：A因为脸上有疤痕属于别人不愿意提及的话题，
32、所以老师在询问的时候十分小心，以免伤害到别人。故A项正确。9答案与解析：A根据上文中的“Everyone was too afraid to go in”及常识可知，正是因为大火失去控制了，别人才不敢进去。A项符合上下文语境。10答案与解析：C妈妈被木头砸到，失去了知觉(senseless)，脸部受伤。故C项正确。11答案与解析：D妈妈摸着自己的脸说，这个疤痕将会永久留下来。D项符合上下文语境。12答案与解析：B参见上题解析。permanent“永久的”。13答案与解析：D妈妈说直到今天她也不后悔(regretted)自己做的事情。故D项正确。14答案与解析：B男孩抱着妈妈，感觉到了妈妈伟大的自我牺牲精神(spirit)。15答案与解析：C根据语境及常识可知，男孩得知真相后，深受感动，紧紧地握着妈妈的手。