五、完形填空。
The forms of currency and shopping ways change a lot in China. Long ago, people used shells to buy things. Later on, they started using small and round made of metal as money. People needed to go to shops to buy things.
the paper money came! People could take it around easily. And now, we even have electronic money to for things. It is very convenient for our life.
With the Internet, shopping also gets very popular now. We can buy almost anything online at home! This can a lot of our time. Another good thing is that things online are not as as those in the supermarket.
But there also some problems. The quality of things online may not always be good. And we have to be careful our electronic money. Always be and careful about using it! There are two sides to every coin.
()1. A. boards B. rings C. balls D. coins
()2. A. Sometimes B. First C. Then D. Also
()3. A. look B. pay C. wait D. thank
()4. A. healthy B. daily C. hard D. messy
()5. A. online B. apart C. outside D. together
()6. A. waste B. reuse C. save D. take
()7. A. cheap B. expensive C. modern D. useful
()8. A. is B. are C. isn't D. aren't
()9. A. on B. in C. to D. with
()10. A. wise B. polite C. interested D. friendly

1. D 2. C 3. B 4. B 5. A 6. C 7. B 8. B 9. D 10. A

【分析】
这是一篇关于中国货币形式与购物方式演变的完形填空，解题时需结合上下文语境、时间逻辑、词汇搭配及常识逐一分析选项：先定位空格前后的关键信息，判断空格处的逻辑关系（如时间顺序、转折等），再辨析选项词汇的含义和用法，选出最贴合语境的答案。
【解析】
1. 空格前提到用金属制作的小而圆的物品作为货币，结合常识，金属制作的圆形货币是硬币，对应选项D（coins），故选D。
2. 前文讲古代用贝壳、金属货币，此处讲纸币的出现，是时间顺序的衔接，then（然后）符合逻辑，故选C。
3. 电子货币用于支付，固定搭配pay for表示“支付”，故选B。
4. 电子货币方便日常生活，固定搭配daily life表示“日常生活”，故选B。
5. 后文提到“在线购物”，此处指网上购物变得流行，online符合语境，故选A。
6. 网上购物能节省时间，save time表示“节省时间”，符合逻辑，故选C。
7. 结合常识，网上商品通常比超市便宜，此处用not as expensive as表示“不像……那么贵”，故选B。
8. there be句型遵循就近原则，后面的名词problems是复数，be动词用are，故选B。
9. 固定搭配be careful with表示“小心……”，符合语境，故选D。
10. 使用电子货币需要明智且小心，wise（明智的）符合要求，故选A。
【答案】
1.D 2.C 3.B 4.B 5.A 6.C 7.B 8.B 9.D 10.A
【知识点】
完形填空解题技巧、词汇辨析、固定搭配
【点评】
本文围绕中国货币与购物方式的变化展开，贴近生活实际，主要考查学生对上下文语境的理解、常用词汇及固定搭配的掌握，难度适中，能有效检验学生的英语综合运用能力。
【难度系数】
0.6