Ⅰ. Complete the passage with proper words according to the Chinese given.
Last Saturday, we visited a science 1. (展览会). The coolest thing was a 3-D 2. (打印机) making a robot arm! The arm had a metal 3. (挂钩) to hold things. A teacher said, “This is an 4. (人造的) hand. It can help people!”
There was also a heavy 5. (块) of metal on a table. It 6. (重量是) five kilograms! My friend tried to lift it but failed, so I 7. (借) him a helping hand. A worker taught us how to 8. (解决) the balance problem.
We also saw a machine reading 9. (信号) from our brains. When I closed my eyes, lights moved on a screen! The robot at the exit said, “This exhibition 10. (花费) one million dollars!”
Before leaving, we 11. (下载) a free robot poster. It 12. (允许) us to learn more about different kinds of robots. What a fantastic fair!

1. fair 2. printer 3. hook 4. artificial 5. block 6. weighed 7. lent 8. fix 9. signals 10. cost 11. downloaded 12. allowed

【分析】首先根据括号内的中文提示确定所需单词的词义，再结合短文的时态（多为一般过去时）、单复数变化以及固定短语搭配，逐一确定每个空的正确单词形式，确保符合语境和语法要求。
【解析】1. “展览会”对应名词fair，构成固定搭配science fair；2. “打印机”对应名词printer，即3-D printer；3. “挂钩”对应名词hook；4. “人造的”对应形容词artificial；5. “块”对应名词block，构成固定短语a block of；6. 描述过去的重量，主语为it，用动词weigh的过去式weighed；7. 描述过去的动作，“借”对应动词lend的过去式lent；8. “解决”对应动词fix，构成fix the balance problem；9. 表示多个信号，用名词signal的复数形式signals；10. 物作主语表示“花费”，用动词cost的过去式cost；11. 描述过去的动作，“下载”对应动词download的过去式downloaded；12. 描述过去的动作，“允许”对应动词allow的过去式allowed。
【答案】1. fair 2. printer 3. hook 4. artificial 5. block 6. weighed 7. lent 8. fix 9. signals 10. cost 11. downloaded 12. allowed
【知识点】英语词汇运用、一般过去时、固定短语搭配
【点评】本题是根据中文提示完成短文的基础词汇题，主要考查常用单词的拼写、词义及语法变形，需结合语境和时态确定单词形式，难度适中，适合巩固基础词汇。
【难度系数】0.5

Ⅱ. Write words according to their English definitions.
1. n. something new that someone has made or designed for the first time
2. n. an event at which people, business, etc. show and sell their goods
3. adj. made or produced to copy something natural, not real
4. n. the organ(器官) inside the head that controls movement, thought, and feeling
5. v. to decide how something will look, work, etc., especially by drawing plans or making models
6. v. to move data to a smaller computer system from a large one
7. v. to have a particular weight
8. n. a person or thing that uses something

1. invention 2. fair 3. artificial 4. brain 5. design 6. download 7. weigh 8. user

【分析】
本题要求根据英文释义填写对应英语单词，解题思路为：先准确理解每个英文句子的含义，再结合所学英语词汇，匹配出符合词性（名词、形容词、动词等）要求的单词，确保释义与单词含义完全对应。
【解析】
1. 释义为“某人首次制作或设计的新事物”，对应名词invention；
2. 释义为“人们、企业展示和销售商品的活动”，对应名词fair；
3. 释义为“制作或生产来模仿自然事物、非真实的”，对应形容词artificial；
4. 释义为“头部内控制运动、思维、记忆和感觉的器官”，对应名词brain；
5. 释义为“决定某物的外观、功能等，尤其通过绘制计划或制作模型”，对应动词design；
6. 释义为“将数据从大的计算机系统移动到小的系统”，对应动词download；
7. 释义为“有特定重量”，对应动词weigh；
8. 释义为“使用某物的人或物”，对应名词user。
【答案】
1. invention 2. fair 3. artificial 4. brain 5. design 6. download 7. weigh 8. user
【知识点】
英语单词释义匹配；英语词汇词性辨析
【点评】
本题考查基础英语词汇的释义匹配，需学生掌握常见词汇的含义与词性，属于基础题型，难度适中。
【难度系数】
0.6