1. (Listen to the audio recording for the question.)A. He does not want to eat GM food.B. He wants GM food labeled.
C. He does not care if GM food is labeled.D. He agrees with the woman.
2. (Listen to the audio recording for the question.)A. The man is against organ cloning.B. The woman is against organ cloning.
C. The man is a scientist devoted to organ cloning.D. The woman will let her organ clones once it fails.3. (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.C. She wants to clone the man.
D. She does not want a clone of the man.4. (Listen to the audio recording for the question.)A. The two speakers have a lot of common interests.
B. The two speakers have both chosen Mr. Green's elective course.C. The woman has a lot of knowledge on genetics.D. The man is beginning to like genetics.5. (Listen to the audio recording for the question.)A. Both the man and the woman are against GM food.B. Both the man and the woman are for the GM food.C. The woman is probably a consumer of GM foods.D. The man is probably a consumer of GM foods.Part II Script
Directions: Listen to the passage three times. When the passage is read for the first time, listen for the general idea. When thepassage is read the second time, fill in the blanks numbered from (1) to (7) with the exact words you hear. For blanksnumbered from (8) to (10), write down either the exact words you hear or the main points in your own words. When thepassage is read 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 (1) information about the complex events that occur during human development. A primarygoal of this work is to (2) how stem cells become divided or differentiated (分化). Scientists know that turning genes on andoff is (3) to this process. Some of the most serious medical conditions, such as cancer and birth defects, are due to (4) celldivision
and differentiation. A better understanding of the genetic and molecular controls of these processes may yield informationabout (5) such diseases arise and suggest new strategies for therapy. A significant barrier (6) this use and most uses of stemcells is that scientists do not yet fully understand the (7) that turn specific genes on and off to influence the differentiation ofthe stem cell.
(8) 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. (9) to treat diseasesincluding Parkinson's and Alzheimer's diseases, spinal cord injury, stroke, burns, heart disease and diabetes.For example, (10).
Part III Script
Directions: Listen to the following recording, and then choose the correct answers to the questions. You will hear therecording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing tocheck your answers.
1. What is the Iceland company doing?
A. Creating a detailed map of the genes of the Icelandic people.B. Creating a detailed map of all human genes.
C. Creating a map as detailed as those by some other projects.D. Creating a map less detailed than that by the American company.
2. Why do the people of Iceland present a special opportunity to study the human genome?A. Iceland has a small population.
B. Most of the Icelanders have a small group of ancestors.C. Plenty of records of their ancestors are available.D. All of the above.
3. Why is the Iceland genome project superior to the American genome project?A. Because it observes 200 million people.B. Because it observes 14 large families.
C. Because it observes more families than any other project.D. Because it observes more families than many other projects.4. Why can the study of genes help to identify the causes of diseases?A. Small genetic differences may be related to some diseases.B. Large genetic differences may be related to some diseases.C. The genetic similarity may throw light on some diseases.D. Similar genes will cause similar diseases.5. 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 identify disease-causing genes.D. Creating a detailed human genetic map to identify abnormally small genes.
Part IV
Directions: Choose the best answer to each of the following statements.
1. With the advent of the genetic map we know what everything is, but do we know where to ___________?A. go for itB. go with itC. get for itD. get with it
2. As you know, it has taken millions of years of evolution and natural selection to get us _________ we are today.A. howB. whoC. whatD. where
3. It's too late to _______ the clock. We'll just have to depend on common sense to solve uncommon problems.A. returnB. turn aroundC. turn backD. turn round
4. Many prisoners have been freed through DNA testing, except for the ones whose death sentence has already been__________.A. carried outB. carried onC. carried forwardD. carried away
5. —I guess there would be some tremendous medical advantages in that sort of research.—You've said _________.A. a mouthB. the mouthC. a mouthfulD. the mouthful
6. Plant breeders have already used preliminary information from the rice genome to create experimental strains of rice thatbetter ______ cold and pests.A. resistB. resist toC. resist withD. resist against
7. When scientists can identify and manipulate genes that cause certain diseases, ______ will cure them easily.
A. the mankindB. mankindC. the manD. human race
8. All Americans eat biotech foods unless they deliberately seek out products that are labeled ___________.A. othersB. otherwise
C. through other waysD. in other methods
9. Human beings must learn to _______ a balance between the welfare of a patient and that of a clone.A. strikeB. hitC. beatD. access
10. Do you think it's wrong to _______ with nature by biotechnology?A. interactB. interconnectC. interfaceD. interfere
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