C. Because monkeys’ genetic makeup is as complicated as humans.

D. Because it is too expensive to work on their genetic makeup.

34. What is the main idea of Paragraph 6？

A. The cure for neural diseases.

B. The process of cloning monkeys.

C. The significance of cloning monkeys.

D. The close relations between monkeys and humans.

35. What can we infer from this passage？

A. More effective medicine will be produced.

B. Drug trials on lab mice will be abandoned.

C. China is the first country to have cloned monkeys.

D. China will definitely stay ahead of the world in cloning.

第二节（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。

While many people are physically active in high school, there are always many things

for teens to compromise their healthy lifestyle. 36

Get plenty of rest. With homework and social commitments, teens in high school have a tendency to stay up late and rise early. 37 Then go to sleep early enough, turn off the television or radio and unplug the phone to prevent your sleep from being disturbed.

38 Teens are well-known for living on a diet of junk food and soda. Drink plenty of water and eat whole grains and vegetables daily. If you mainly eat nutritious foods, the occasional fast food hamburger or late night pizza won't hurt you.

Say no to cigarettes and alcohol. Lifelong habits start during high school years, so make sure the habits you are forming are good ones. Getting hooked on cigarettes and alcohol at a young age can lead to an adulthood spent battling addictive habits. 39 Exercise regularly. Physical activity helps build a strong body and mind. Teens who exercise throughout high school benefit from a healthy body and a mind that is more at ease

with less stress.