1选择题
The new smart robot ______ by our school's science club last month. It can help students clean the lab.
- A. is made
- B. was made
- C. makes
- D. made
答案：B
解析：本题考查一般过去时的被动语态。句意为：这个新的智能机器人上个月被我们学校的科学俱乐部制作。它可以帮助学生打扫实验室。主语'The new smart robot'是动作'make'的承受者，且时间状语'last month'表示过去，所以应用一般过去时的被动语态，结构为was/were + done。故选B。易错点是忽略时间状语'last month'，误选一般现在时的被动语态is made。
2选择题
— Must I finish the engineering project report today? — No, you ______. You can hand it in tomorrow morning.
- A. mustn't
- B. can't
- C. don't have to
- D. shouldn't
答案：C
解析：本题考查情态动词must的否定回答。Must引导的一般疑问句，否定回答常用needn't或don't have to，表示'不必'；mustn't表示'禁止'。根据答语'You can hand it in tomorrow morning.'（你可以明天早上交），可知是不必今天完成。故选C。易错点是误用mustn't表示'不必'。
3选择题
If the experiment ______ successfully next week, we will share the results at the science fair.
- A. will go
- B. goes
- C. is going
- D. went
答案：B
解析：本题考查if引导的条件状语从句中的时态。在if引导的条件状语从句中，常用一般现在时表示将来。句意为：如果实验下周成功进行，我们将在科学展览会上分享结果。从句主语'the experiment'是第三人称单数，动词用goes。故选B。易错点是受中文影响，在从句中误用一般将来时will go。
4选择题
The engineer showed us ______ the 3D printer works. We were all amazed by its precision.
- A. what
- B. how
- C. why
- D. when
答案：B
解析：本题考查宾语从句的引导词。句意为：工程师向我们展示了3D打印机是如何工作的。我们都对它的精确度感到惊讶。根据句意，从句缺少方式状语，表示'如何'工作，应用how引导。故选B。易错点是误选what，what在从句中应作主语或宾语，而此处需要方式状语。
5填空题
My brother is good at programming. He ______ (design) a simple game for our school festival last year.
答案：designed
解析：本题考查一般过去时。根据时间状语'last year'（去年），可知动作发生在过去，谓语动词应用过去式。design的过去式是designed。句意为：我哥哥擅长编程。他去年为我们的学校节日设计了一个简单的游戏。易错点是忽略时间状语，误用一般现在时designs。
6填空题
We believe that the space station ______ (visit) by Chinese astronauts many times in the future.
答案：will be visited
解析：本题考查一般将来时的被动语态。句意为：我们相信未来中国宇航员将多次访问空间站。主语'the space station'是动作'visit'的承受者，且时间状语'in the future'表示将来，所以应用一般将来时的被动语态，结构为will be + done。故填will be visited。易错点是忽略被动语态，误填will visit。
7解答题
请根据以下提示，用英语描述一项你了解的科技创新（如：太阳能汽车、无人机、人工智能助手等）。要求：1. 使用至少两种时态（如：一般现在时和一般过去时）；2. 包含至少一个被动语态句子；3. 词数60左右。
答案：One possible version:
I'd like to tell you about solar-powered cars. They are powered by sunlight, so they are environmentally friendly. Last year, a solar car race was held in our city. Many students took part in it. I believe these cars will be used more widely in the future because they can help reduce air pollution.
解析：本题为开放性表述题，考查学生综合运用时态和被动语态的能力。参考答案使用了一般现在时（are powered, are）、一般过去时（was held, took）、一般将来时（will be used），并包含被动语态句子（was held, will be used）。作答时需注意：1. 内容需切合'科技创新'情境；2. 时态使用正确，特别是被动语态结构完整（be + done）；3. 语言表达清晰，无重大语法错误。易错点是时态混用或被动语态结构不完整（如漏掉be动词）。
8解答题
阅读下面短文，根据短文内容，用英语回答问题。注意：每题答案不超过10个词。
Last summer, I visited a modern engineering lab with my classmates. We saw a robot that could build models. The engineer told us that the robot was made by a team of young scientists. They spent half a year developing it. Now, the robot is used to help students learn about engineering. It can show us how to put parts together. I think it's amazing!
1. When did the writer visit the lab?
2. Who made the robot?
3. What is the robot used for now?
答案：1. Last summer.
2. A team of young scientists.
3. Helping students learn about engineering. / To help students learn about engineering.
解析：本题考查基于短文的细节理解和信息提取能力。
第1题：根据短文第一句'Last summer, I visited...'，答案为Last summer.
第2题：根据'The engineer told us that the robot was made by a team of young scientists.'，答案为A team of young scientists.
第3题：根据'Now, the robot is used to help students learn about engineering.'，答案为Helping students learn about engineering. 或 To help students learn about engineering.
易错点是答案超出字数限制，或未能准确提取关键信息。