新视野大学英语视听说教程4（第二版） - 单元测试答案

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?

Part IV

A. Finding out the history of Irish families.

Finding out the special genes of Irish people to cure their diseases. B.

C. Creating a detailed human genetic map to identify disease-causing genes.

D. Creating a detailed human genetic map to identify abnormally small genes.

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 ___________?

2. As you know, it has taken millions of years of evolution and natural

selection to get us _________ we are today.

A. how B. who C. what D. where

A. go for it B. go with it C. get for it D. get with it

3. It's too late to _______ the clock. We'll just have to depend on common

sense to solve uncommon problems.

4. Many prisoners have been freed through DNA testing, except for the ones

whose death sentence has already been __________.

5. —I guess there would be some tremendous medical advantages in that sort

of research.

—You've said _________.

6. Plant breeders have already used preliminary information from the rice

genome to create experimental strains of rice that better ______ cold and

pests.

A. resist

A. return B. turn around C. turn back D. turn round

A. carried out B. carried on C. carried forward D. carried away

A. a mouth B. the mouth C. a mouthful D. the mouthful