优质视听说unit72

1、NEXTk注意事项Part 1 Short dialogs and multiple choice questi ons（每小题：2分）Directi ons: Liste n to the short dialogs, the n choose the correct an swers to the questi ons. You will hear the record ing twice. After the first playing, there will be time for you to choose the correct an swers. Use the sec ond

2、play ing to check your an swers.1.A. He does not want to eat GM food.B. He wants GM food labeled.C. He does n ot care if GM food is labeled.D. He agrees with the woma n.2.A. She agrees with the man.B. GMO spreads diseases.C. GM fish are abno rmally large.D. Trees grow too fast.3.A. She wants the man

3、 to go to the meeting.B. She wants the man to pick up the childre n.C. She wants to clone the man.D. She does not want a clone of the man.4.A. Evolution is more efficient than lab experiments.B. Evolution is less efficient than lab experiments.C. Evoluti on produces better stra ins.D. Lab experiment

4、s produce more strains.5.A. The woma n wants to be coaxed to clone herself.B. Beauty is in the eyes of the beholder.C. Love is bli nd.D. The man wants copies of the girl through cloning.Id巨耳T”注意事项PREVIOUSClick ONCE on the speaker icon to start listening!放音结束前请不要离开本页。否则就听不成啦Part 2 Compo und dictati o

5、n(每小题：2分)Directi ons: Liste n to the passage(s) three times. When the passage is read for the first time, listen for the general idea.When the passage is read for the second time, fill in the blanksn umbered from S1 to S7 with the exact words you hear. For blanks numbered from S8 to S10, write down

6、either the exact words you hear or the main points in your own words. When the passage is read for the third time, check your an swers.Questi ons 1 to 10 are based on the same passage or dialog.There are many ways in which huma n stem cells can be used in basic research and in cli ni cal research.in

7、 formati on about theyieldStudies of human stem cells may (S1) complex events that occur during human development. A primary goal of this work isidentifyto (S2) (2)how stem cells become divided or differentiated.to thiscentralScientists know that turning genes on and off is (S3)(3) process. Some of

8、the most serious medical conditions, such as cancer and birthI abnormal、，、，cell division and differentiation. A betterun dersta nding of the gen etic and molecular con trols of these processes may yieldhowin formati on about (S5)(5)such diseases arise and suggest newstrategies for therapy. A sig nif

9、ica nt barrier (S6)(6)this use andmost uses of stem cells is that scie ntists do not yet fully un dersta nd the (S7)signals(7)that tur n specific genes on and off to in flue nee thedifferentiation of the stem cell.(S8)(8) that could be used for cell-based therapies. Today, don ated orga ns and tissu

10、es are often used to replace ail ing or destroyed tissue, but the n eed for tran spla ntable tissues and orga ns far outweighs the available supply. (S9)(9)to treat diseases in cludi ng Parkinsons and Alzheimers diseases, spinal cord injury, stroke, bur ns, heart disease and diabetes.For example, (S

11、10)(10)4 PREV1OUS|Click ONCE on the speaker icon to start listening!放音结束前请不要离开本页。否则就听不成啦Part 3 Short passages and multiple choice questi ons(每小题：2分)Directions: Listen to the following recording, then choose the correct an swers to the questi ons. You will hear the record ing twice. After the first p

12、laying, there will be time for you to choose the correct an swers. Use the sec ond play ing to check your an swers.Questi ons 1 to 5 are based on the same passage or dialog.1. What is the Icela nd compa ny doing?r IA. Creating a detailed map of the genes of the Icelandic people.B. Creat ing a detail

13、ed map of all huma n gen es.rjC. Creati ng a map as detailed as those by some other projects.rD. Creating a map less detailed than that by the American compa ny.2.rWhy do the people of Icela nd prese nt a special opportu nity to study the huma n geno me?A. Icela nd has a small populati on.r |B. Most

14、 of the Icela nders have a small group of an cestors.r jC. Ple nty of records of their an cestors are available.D. All of the above.3.Why is the Iceland project superior to the American genome project?r IA. Because it observes 200 milli on people.r jB. Because it observes 14 large families.C. Becaus

15、e it observes more families than any other project.rD. Because it observes more families than many other projects.4.Why can the study of genes help to ide ntify the causes of diseases?A. Small genetic differences may be related to some diseases.rjB. Large genetic differences may be related to some d

16、iseases.C. The genetic similarity may throw light on some diseases.D. Similar genes will cause similar diseases.5. What is the passage mainly con cer ned about?A. Finding out the history of Irish families.B. Finding out the special genes of Irish people to cure their diseases.C. Creat ing a detailed

17、 huma n gen etic map to ide ntify disease-caus ing gen es.D. Creating a detailed human genetic map to identify abno rmally small gen es.PREVIOUSNEXTClick ONCE on the speaker icon to start listening!放音结束前请不要离开本页。否则就听不成啦Part 4 Short passages/dialogs and bla nk filli ng(每小题:1.5分)Directi ons: Liste n to

18、 the follow ing record ing, the n fill in theblanks. You will hear the recording twice. After the firstplaying, there will be time to write the missing words. Use the sec ond play ing to check your an swers.Questi ons 1 to 18 are based on the same passage or dialog.new speciesWhen people say it is u

19、nnatural to create (1) through gen etic mutati ons, there are someImisunderstandin.First of all, I do not agree that an orga nism to whichone or two newnew speciesis a (4).The cha ngesthrough biotechmade (5) the classificatdo not violatea geneWhat you get when you insert(7) is anI organism that h一Si

20、nce we huma ns are a part ofthe natural uni(9)naturaleveryth ing we do is (10).In biotech no logy weisolate from nause enzymes that we (11) to link togetherpieces of DNA(12) in the same manner thatoccurs in natur(13) . We eve n use a bacterium that isa natural genet(14) to in troduce the new genesin

21、to the plantplant(15) . Moreover, (16) breed ing is also n atural.be more open-miThe public should (17), whose developme ntbenefit mankindwill (18)PREVIOUSNEXTClick ONCE on the speaker icon to start listening!放音结束前请不要离开本页。否则就听不成啦Part 5 Short passages and multiple-choice questi ons(每小题：2分)Directions:

22、 Listen to the following recording, then choose the correct an swers to the questi ons. You will hear the record ing twice. After the first playing, there will be time for you to choose the correct an swers. Use the sec ond play ing to check your an swers.Questi ons 1 to 5 are based on the same pass

23、age or dialog.1.Why was the woma n sad?r iA. Because of un fair treatme nt of Dolly.rB. Because of the beg inning of huma n cloning.C. Because of the death of a sheep clone.r ID. Because of the mans loss of in terest in her.2.What does the passage say about Dollys offspri ng and death?rA. She produc

24、ed no offspri ng before dying at the age of 11.rB. She produced six little ones before dying at the age of 11.r IC. She produced three little ones before dying at the age of 6.D. She produced six little ones before dying at the age of 6.3.Which of the following is NOT mentioned as a feature ofDollys

25、 appeara nee?A. Short legs.r IB. Big eyes.rC. A high no se.D. Curly fair wool.4. What did the Chin ese scie ntist Tong do?A. He helped British scientists in cloning Dolly.B. He helped American scientists in cloning fish.C. He cloned a fish more than three decades earlier.D. He cloned a cat more tha

26、n three decades earlier.5. What happe ned to the Chin ese scie ntists research?A. It was published in an intern ati onal jour nal.B. It was published in a Chin ese jour nal.C. It was tran slated into En glish.D. It was widely read.HEX”4 PREVIOUSI|NEXTClick ONCE on the speaker icon to start listening

27、!放音结束前请不要离开本页。否则就听不成啦Part 6 Long dialogs and True/False questi ons(每小题：1分)Directions: Listen to the following recording, then mark the statements T (true) or F (false). You will hear the recording twice. After the first playing, there will be time for you to write the correct an swers. Use the sec o

28、nd play ing to check youran swers.PREVIOUSQuesti ons 1 to 5 are based on the same passage or dialog.1. People can be divided into right-handed and left-handed, but not into right-eyed and left-eyed.TrF2. People are cross dominant if they cut with their left hand, butlook with their right eye.3. Peop

29、le are cross dominant if they can kick with both feet.4. In some old cultures left-ha nders were con sidered evil.5. Ein ste in was left-ha nded, and Newt on was right-ha nded.D. the mouthfulJ飞匾交卷！二Click ONCE on the speaker icon to start listening!放音结束前请不要离开本页。否则就听不成啦Part 7 Vocabulary and Structure（

30、每小题:1.5分）Directions: Choose the right answer.1. With the adve nt of the gen etic map, we know whereeveryth ing is, but do we know where to?A. go for itrB. go with itC. get for itD. get with it2. As you kno w, it has take n milli ons of years of evoluti on andn atural selecti on to get uswe are today

31、.A. howCB. whorC. whatr3. Its too late tothe clock. Well just have todepe nd on com mon sense to solve un com mon problems.A. returnrB. tur n arou ndrC. tur n back(?D. tur n rou nd4.Many pris on ers have bee n freed through DNA test ing, except for the ones whose death sentence has already bee n(?A.

32、 carried outr jB. carried onC. carried forwardD. carried away5.I guess there would be some treme ndous medical adva ntages in that sort of research. Youve saidI!rA. a mouthr jB. the mouthC. a mouthful6. Pla nt breeders already have used prelimi nary in formati onfrom the rice genome to create experi

33、me ntal stra ins of ricethat bettercold and pests.A. resistB. resist torC. resist withrD. resist aga inst7. When scie ntists can ide ntify and man ipulate genes that causewill cure them easily.certa in diseases,A. the mankindB. mankindC. the manD. huma n race8. Research into animal cloning remains a

34、n important scientificalter nativethe issue of huma n cloning issettled.A. whereCB. whe nCC. afterD. un til9. All America ns eat biotech foods uni ess they deliberately seekout products that are labeledA. othersrB. otherwiseC. through other waysD. in other methods10. Some people are born with the be

35、lief that they are masters oftheir own lives. Others feel they arefate.A. i n the mercy ofB. i n the pity ofC. at the mercy ofD. at the pity of11. Pedersens studies, with various collaborators, investigate theaging process by compar ing sets of twins, most of were separated at an early age.A. thoseB

36、. themC. whoD. whom12. Huma n beings must lear n toa bala neebetwee n the welfare of a patie nt and that of a clone.A. strikeB. hitr |C. beatD. access返回我的课程测试成绩报告单任课教师已设定暂时不显示本试卷的标准或参考答案。请注意本页底部显示的总分和提示。在系统自动批改的客观题正确率小于60%时必须重做。试卷：uni t7-2试卷编号：un it7-2试卷满分：100姓名：余安靖学号：201105002417班级：2011级二级222班登录：20

37、14-05-21 18:41:30交卷：2014-05-21 19:27:58上机地址：1图例：/ Right1 箕 Wrong? To be marked by instructorPart 1 Short dialogs and multiple choice questions(每小题：2 分；满分：10 分)(In the case of True/False type of questions,A stands for True andB for False, or A for Y, B forN and C for NG.)小题得 分对 错学生答案Correct

38、1.C2.A3.D4.B5.DSubtotal :10Part 2 Compound dictation（每小题：2 分；满分：20 分）（The last three questi ons for each passage n eed to be marked by your teacher.）小题得分对错学生答案Correct1.yield2.iden tify3.central4.abno rmal5.how6.to7.sig nals8.（未答）9.（未答）10.（未答）Subtotal :14Part 3 Short passages and multiple choice questions（每小题：2 分；满分：10 分）（In the case of True/False type of questions,A stands for True andB for False, or A for Y, B forN and C for NG.）