问题
多项选择题
流域生态系统的组成要素（）
A、人口、环境、资源
B、物资、资金
C、科学技术
答案
参考答案：A, B, C
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流域生态系统的组成要素（）
A、人口、环境、资源
B、物资、资金
C、科学技术
参考答案：A, B, C
| 完形填空。 | |||
| Two years ago, I went to Michigan in the United States 1 an exchange student. I wanted to improve my English and learn about the culture there. 2 , I learned something else: When you are in trouble, you should believe love is here and there. On the 26th of August, my host family 3 me up from the airport in a big American car. In the car, I did not talk much 4 my English was poor. And when we got home, I tried to answer their questions fast and got to bed early. The first week at my new home was OK. The following weeks, I 5 that the family was really strict and cold. One day, the son of the family 6 a baby parrot as a gift. Later on, the bird was really sick. But the child told his mom it was because every night, when 7 was sleeping, I poured some dirty water straight at the bird. My host mom 8 the lie of her son and my sad life there started. Then one day the parrot was 9 . I had to leave the home. The family all thought I killed it. 10 , I made more friends in school and I could move to live with them. They gave me love when I was in trouble. Now, I visit them once or twice a year. | |||
| ( )1. A. as ( )2. A. So ( )3. A. looked ( )4. A. when ( )5. A. wondered ( )6. A. received ( )7. A. somebody ( )8. A. told ( )9. A. dead ( )10. A. Sadly | B. for B. Therefore B. turned B. because B. described B. refused B. everybody B. doubted B. ill B. Surprising | C. with C. However C. put C. unless C. wished C. gave C. anybody C. believed C. missing C. Unluckily | D. past D. Though D. picked D. if D. found D. offered D. nobody D. broke D. well D. Luckily |