问题
不定项选择
举例说明“绿色”能源在现实生活的应用．下列说法中，利用纳米材料特殊作用的是 [ ]
A． 为了装饰，在墙壁涂刷了“立邦”漆，漆能吸附在墙上
B． 用胶水可以把两张纸粘在一起
C． 用纳米陶瓷粉制成的陶瓷不易撞碎，具有一定的韧性
D． 小雨天气，羽绒服装不易被雨水淋湿
答案
CD
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举例说明“绿色”能源在现实生活的应用．下列说法中，利用纳米材料特殊作用的是 [ ]
A． 为了装饰，在墙壁涂刷了“立邦”漆，漆能吸附在墙上
B． 用胶水可以把两张纸粘在一起
C． 用纳米陶瓷粉制成的陶瓷不易撞碎，具有一定的韧性
D． 小雨天气，羽绒服装不易被雨水淋湿
CD
| 完形填空。 | |||
| Do you know how to study better and make your study more effective (有效的)?We all know that Chinese students usually study very hard for long 1 .This is very good but it doesn't 2 a lot,for an effective student must have enough sleep,enough food and enough rest and exercise.Every day you need to go out for a walk or visit some friends or some nice places.It's good for your study. When you return to your studies,your mind will be refreshed(清醒) and you'll learn more 3 study better.Psychologists(心理学家) have found that learning takes place this way.Take English learning 4 an example.First you make a lot of progress(进步) and you feel happy.Then your language study seems 5 the same.So you will think you're learning 6 and yo  u may give up.This can last for days or even weeks,yet you needn't give up.At some points your language study will again take another big 7 .You'll see that you really have been learning all along.If you get enough sleep,food,rest and exercise,studying English can be very effective and 8 .Don't give up along the way.Learn slowly and you're sure to get good results. | |||
| ( )1. A. days ( )2. A. help ( )3. A. yet ( )4. A. with ( )5. A. to have ( )6. A. something ( )7. A. work ( )8. A. hard | B. time B. give B. and B. for B. to make B. anything B. jump B. common | C. hours C. make C. or C. as C. to take C. nothing C. walk C. interestin | D. weeks D. take D. but D. to D. to stay D. everything D. result D. possible |