3. A。本文作者主要介绍了bacteria对于孩子体重状况所起的作用，因此A项符合作者意图。

4 C。从第一段引用的美国前国务卿的话可以看出。

2. D。D项不属于“good” bacteria的作用。

1. A。从第一段的最后一句可知答案是A。

9. How many wishes did the traveler make?

A. 3

B. 4

C. 5　

D. 6.

[答案与解析]

8. The underlined word “drowsy” in the second paragraph means “_______”.

A. hungry

B. sleepy

C. thirsty　

D. cold

7. What will happen if you sit under the magical tree?

A. You will get what you want.

B. You will marry a young girl.

C. You will meet a demon.

D. You will get rid of all your trouble.

6. The purpose of writing this passage is to _______.

A. warn young people not to affect their schooling during volunteering

B. keep a record of how young people celebrate their festival

C. introduce an event - National Youth Service Day

D. advise young people to be cooperative when volunteering

(三)

A traveler was passing through a desert on a hot day. He was tired, feeling thirsty and hungry. At least, he needed a shady spot to rest for a while. A big leafy tree came into view at some distance away. He felt glad and said to himself, “Had I water to drink, now.” Yes, he found a glass full of cold water on the ground right in front of him. Then, he wished, “Had I something to eat right here.” Immediately, a variety of dishes appeared before him. He was under the shade of Kalpa-Vriksha - a magical tree. Whoever was under it would have whatever he wished for!

The traveler enjoyed the delicious food. He felt drowsy. He wished for a nice bed. It was granted. He stretched himself comfortably on the soft mattress. He hoped that someone would massage (按摩) his feet. Yes, a young lady appeared. She started massaging his feet and legs.

He now started thinking differently. “How can things happen like this? Is it some kind of a trick played by a magical demon (魔鬼)?” he doubted. Oh, a true demon appeared in place of the nice lady! Within no time the demon started leaping at him, with his mouth wide open. The frightened traveler took to his heels and ran away.

5. On National Youth Service Day, young volunteers will _______.

A. do some cleaning in public places

B. prepare food for hungry people

C. plant vegetables and fruit

D. help old people to learn

4. The aim of National Youth Service Day is to _______.

A. educate young people on responsibility

B. invite young people to meet each other

C. encourage young people to serve others

D. celebrate the growth of young people

3. The purpose of writing this passage is to _______.

A. introduce the role of bacteria in children’s weight

B. analyze the influence of obesity on kids

C. give advice on how to lose weight quickly

D. explain the function of bacteria in foods

(二)

One event that helps educate young people about things they can do for others is National Youth Service Day (NYSD). Every year on this day, organizations all over the country celebrate young volunteers, educate young people about how they can help their country, and invite them to participate in service projects. Former Secretary of State Colin Powell said, “National Youth Service Day honors young volunteers and is an invitation to others to join hands and do our part as Americans.”

Founded in 1988, NYSD originally took place on a Tuesday. Now the event lasts from Friday until Sunday so that more people can participate in it. More than 200 organizations work together to create thousands of projects each year. Millions of young people across the United States take part in these service projects.

Long before the event, people, community groups, schools, and nonprofit organizations think of ways to meet their communities’ needs. Then, they plan projects for young volunteers. Projects include bringing food to hungry people, tutoring younger children and helping senior citizens. During the event, young people from the community do things like planting neighborhood gardens and cleaning up local parks.

The organizations that contribute to NYSD believe that volunteering and community service are important activities for people of all ages, but especially for young people. Young people who volunteer are more likely to do well in school, vote, and contribute to charities. More important, they help other people and make the world a better place for everyone.