新视野大学英语视听说第四册unit8quiz答案

1、Unit 8 Quiz文档单元小测验Part IDirections:Listen to the short dialogs, then choose the correctanswers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing to check your answers.1. (Listen to the audio

2、recording for the question.)|< ：| A. He does not want to eat GM food. B. He wants GM food labeled.C C. He does not care if GM food is labeled.Your answerI； D. He agrees with the woman.Correct answer2. (Listen to the audio recording for the question.)A. She agrees with the man.I； B B. GMO spreads

3、diseases.C 1 C. GM fish are abnormally large.Your answerL.Jl D. Trees grow too fast.Correct answer3. (Listen to the audio recording for the question.)A. She wants the man to go to the meeting.B. She wants the man to pick up the children.d C. She wants to clone the man.Your answerI： D D. She does not

4、 want a clone of the man.Correct answer4. (Listen to the audio recording for the question.)C A. Evolution is more efficient than lab experiments.8. Evolution is less efficient than lab experiments.口 C. Evolution produces better strains.Your answerI：1 D. Lab experiments produce more strains.Correct a

5、nswer5. (Listen to the audio recording for the question.)C A. The woman wants to be coaxed to clone herself.I； B. Beauty is in the eyes of the beholder.口 C. Love is blind.Your answerI；1 D. The man wants copies of the girl through cloning.Correct answerPart IIDirections:Listen to the passage(s) three

6、 times. When thepassage is read for the first time, listen for the general idea. When the passage is read for the second time, f川 in the blanks numbered from S1 to S7 with the exact words you hear. For blanks numbered from S8 to S10, write down either the exact words you hear or the main points in y

7、our own words. When the passage is read for the third time, check your answers.There are many ways in which human stem cells can be used in basic research and in clinical research.Studies of human stem cells may (S1)(1)information about the complex events that occurduring human development. A primar

8、y goal of this work is to (S2)(2)how stem cells become divided or differentiated.Scientists know that turning genes on and off is (S3)n3)Ito this process. Some of the most seriousmedical conditions, such as cancer and birth defects, are due to (S4)| (4)cell division and differentiation. A better und

9、erstanding of the genetic and molecular controls of these processes may yield information about (S5) ns)Isuch diseases arise and suggest new strategiesfor therapy. A significant barrier (S6)this useand most uses of stem cells is that scientists do not yet fullyunderstand the (S7)that turn specific g

10、enes onand off to influence the differentiation of the stem cell.(S8)that could be used for cell-based therapies.Today, donated organs and tissues are often used to replace ailing or destroyed tissue, but the need for transplantable tissues and organs far outweighs the available supply. (S9)(9)to tr

11、eat diseases including Parkinson's and Alzheimer's diseases, spinal cord injury, stroke, burns, heart disease and diabetes.For example, (S10)()YourCorrect answer answer(1)yeildyield(2)identifyidentify?centralcentralabnormalabnormal01-howhow区0(6)toto同signalssignals国(8)The most important poten

12、tial application of human stem cells is perhaps the generation of cells and tissuesStem cells, directed to differentiate into specific cell types, will offer a source of replacement cells and tissues国(10)it may become possible to generate healthy heart muscle cells in the laboratory and then transpl

13、ant those cells into patients with chronic heart diseasePart IIIDirections:Listen to the following recording, then choose thecorrect answers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing

14、to check your answers.1. What is the Iceland company doing?A. Creating a detailed map of the genes of the Icelandic people.l< B. Creating a detailed map of all human genes.C. Creating a map as detailed as those by some other projects.Your answerD D. Creating a map less detailed than that by the A

15、merican company.Correct answer2. Why do the people of Iceland present a special opportunity to study the human genome?I? A. Iceland has a small population.I： 1 B. Most of the Icelanders have a small group of ancestors.r C. Plenty of records of their ancestors are available.Your answerDI： 1 D. All of

16、 the above.Correct answerD3. Why is the Iceland project superior to the American genomeproject?d A. Because it observes 200 million people.B. Because it observes 14 large families.C. Because it observes more families than any other project.Your answerD. Because it observes more families than many ot

17、her projects.Correct answer4. Why can the study of genes help to identify the causes of diseases?A. Small genetic differences may be related to some diseases.I； B B. Large genetic differences may be related to some diseases.口 C. The genetic similarity may throw light on some diseases.D ：l D. Similar

18、 genes will cause similar diseases.Your answerCorrect answerZlAA5. What is the passage mainly concerned about?A. Finding out the history of Irish families.B. Finding out the special genes of Irish people to cure their diseases.C. Creating a detailed human genetic map to identifydisease-causing genes

19、.D. Creating a detailed human genetic map to identifyYour answerCabnormally small genes.Correct answerCPart IVDirections:Choose the right answer.1. With the advent of the genetic map, we know where everything is, but do we know where to?I； AA.go for it口B.go with itdC.get for itI：力D.get with itYour answerCorrect answer国1cB2. As you know, it has taken millions of years of evolution and natural selection to get us we are today.OA.howI。B.who口C.whatD