1 . 词性转换
1. relate vt.联系；讲述→_________ n．关系，联系
2. science   n. 科学→_________n.   科学家
3. energy   n. 精力；活力→________adj. 积极主动的；精力旺盛的
4. influence   n. 影响 →________adj. 有影响的
5. private   adj. 个人的；私用的 →_________n. 隐私；秘密；私事
6. honest   adj. 诚实的 →_________n. 诚实;正直
7. popular adj. 受喜爱的；讨人喜欢的→________n.流行；普及
8. imagine   v. 想象 →_________n.想象
9. explain v. 解释，辩解→________n.解释，说明
10. afford v. 买得起，承受的住→________adj. 价格合理的；买得起的

2 . People make the a__________ (假设，假定) that if someone important says something is true, then it must be. (根据中英文提示填空)

3 . It is _________(估计) that by the 2050, this country’s population will have increased to 30 million and close to 80% will live in urban areas.(根据汉语提示单词拼写)

4 . O________ (明显地，显而易见地), when your older brother is doing it, you think it’s a cool thing to do. (根据中英文提示单词拼写)

5 . As technology improves every day, people are getting more o________ about the outlook of having a robot at home to help with boring housework.（乐观）（根据中英文提示填空）

6 . He is so o________ in writing his graduation paper that he barely bothers eating well.（忙于）（根据中英文提示填空）

7 . _____ _____ ____ （回到） Walter Scott’s lines, we may find even white lies have results we cannot know______ _______ （提前）. (根据汉语提示完成句子)

8 . Working out regularly every day for at least half an hour helps a lot to reduce one’s tiredness and ________ (焦虑). (根据汉语提示单词拼写)

9 . Now tick the solutions that you think are most e ________ (有效) to supply Afica with fresh water. （根据中英文提示填空）