题目

人们能把野牛逐渐驯化成产奶量高的奶牛，是因为生物具有  (   ) A.新陈代谢的特征 B.生殖发育的特征 C.遗传变异的特征 D.生老病死的特征 答案：C  根据短文内容和所给中文提示，在空白处写出单词的正确形式。每空一词。When I was in high school I met my lifelong teacher Margaret. She was a great teacher, she was always 1. (幽默的) and kind to us, and we didn’t feel 2. (紧张的) when we stayed with her.One day, Marguerite asked us about our 3. (梦想). And I never thought about that question at that time. I was really interested in painting，but I didn’t paint very well and I always told myself it was 4. (不可能的) to be a painter. So I told Margaret that I want to be an artist. I believed painting could bring me a lot of 5. (快乐) although my poor painting never 6. (满足) me. 7. (也许)I would never have my success in the future. The next day Margaret invited me to her house after school. I was surprised to see many famous paintings there. she said to me: “ Mike, I know you love painting, if you really love it, you should be 8. (积极的) to learn more about it, don't give up.” Then I took 9. (参与) in our school art club. And finally I went into a top university. I thanked Margaret a lot and I also felt so 10. (自豪的) of myself.