1. 阅读 Grammar time 中关于蔡伦的短文，用所给单词的正确形式填空。
Cai Lun was a great Chinese inventor. He (live) in the Han Dynasty. He (like) making things.
At that time, people often (write) on bamboo or silk. Cai Lun (want) to use something cheap to make paper. It was very difficult at first, but he (do not) give up. He (keep) thinking and trying. Finally, he (make) cheap but good paper. Cai Lun’s paper (help) more people read and write. It was very useful.
Cai Lun was a great Chinese inventor. He (live) in the Han Dynasty. He (like) making things.
At that time, people often (write) on bamboo or silk. Cai Lun (want) to use something cheap to make paper. It was very difficult at first, but he (do not) give up. He (keep) thinking and trying. Finally, he (make) cheap but good paper. Cai Lun’s paper (help) more people read and write. It was very useful.
答案：lived; liked; wrote; wanted; did; not; kept; made; helped
解析：
本题考查一般过去时的用法，整篇短文介绍的是蔡伦所处的汉代发生的过往事迹，所有动作都发生在过去，因此括号内的动词都要变为对应的一般过去式：
1. 动词live的过去式为lived
2. 动词like的过去式为liked
3. 动词write的过去式为不规则变化wrote
4. 动词want的过去式为wanted
5. 一般过去时的否定结构借助助动词did，do not的过去形式为did not
6. 动词keep的过去式为不规则变化kept
7. 动词make的过去式为不规则变化made
8. 动词help的过去式为helped
1. 动词live的过去式为lived
2. 动词like的过去式为liked
3. 动词write的过去式为不规则变化wrote
4. 动词want的过去式为wanted
5. 一般过去时的否定结构借助助动词did，do not的过去形式为did not
6. 动词keep的过去式为不规则变化kept
7. 动词make的过去式为不规则变化made
8. 动词help的过去式为helped
2. 根据蔡伦的故事，回答下列问题。
(1) How did people often write before Cai Lun made paper?
(2) Why did people not want to use bamboo and silk?
(3) Why was Cai Lun’s paper important?
(1) How did people often write before Cai Lun made paper?
(2) Why did people not want to use bamboo and silk?
(3) Why was Cai Lun’s paper important?
答案：(1)They often wrote on bamboo or silk.
(2) Because bamboo was heavy and silk was dear.
(3) Because Cai Lun's paper helped more people read and write.
(2) Because bamboo was heavy and silk was dear.
(3) Because Cai Lun's paper helped more people read and write.
解析：
【解析】
本题围绕蔡伦改进造纸术的相关背景知识进行英文问答，结合对应史实逐一作答：
(1) 蔡伦造纸之前，人们通常在竹简或者丝帛上书写。
(2) 人们不愿使用竹简和丝帛的原因是竹简十分沉重不便携带，而丝帛价格昂贵成本很高。
(3) 蔡伦改进的造纸术制作出的纸张成本低廉、轻便易得，能够让更多人获得书写载体，帮助更多人实现读写。
【答案】
(1) They often wrote on bamboo or silk.
(2) Because bamboo was heavy and silk was dear.
(3) Because Cai Lun's paper helped more people read and write.
【知识点】
历史常识，英文问答
【点评】
本题结合中国古代科技常识考查英文情景问答，难度较低，既考察学生对蔡伦造纸相关史实的了解，也锻炼学生用英文输出对应信息的能力。
【难度系数】
0.8
本题围绕蔡伦改进造纸术的相关背景知识进行英文问答，结合对应史实逐一作答：
(1) 蔡伦造纸之前，人们通常在竹简或者丝帛上书写。
(2) 人们不愿使用竹简和丝帛的原因是竹简十分沉重不便携带，而丝帛价格昂贵成本很高。
(3) 蔡伦改进的造纸术制作出的纸张成本低廉、轻便易得，能够让更多人获得书写载体，帮助更多人实现读写。
【答案】
(1) They often wrote on bamboo or silk.
(2) Because bamboo was heavy and silk was dear.
(3) Because Cai Lun's paper helped more people read and write.
【知识点】
历史常识，英文问答
【点评】
本题结合中国古代科技常识考查英文情景问答，难度较低，既考察学生对蔡伦造纸相关史实的了解，也锻炼学生用英文输出对应信息的能力。
【难度系数】
0.8