Ⅱ. 用括号内所给词的适当形式填空。
1. When the object (design) on the computer, it can be made by the 3D printer.
2. The students (talk) about inventions when the bell rang.
3. Meimei and Adam (report) the exhibition when they saw a new invention.
4. The smart glasses (use) to help blind people read books.
5. The workers (produce) many objects by the 3D printer last week.

1. is designed 2. were talking 3. were reporting 4. are used 5. produced

【分析】本题考查动词的适当形式填空，需结合句子时态、语态及主谓一致确定动词形式。解题思路：1. 先根据句中时间状语或从句时态判断主句/从句的时态；2. 再分析主语与谓语动词的主被动关系，确定是否使用被动语态；3. 最后根据主语的单复数匹配动词的正确形式。具体到各题：第1题需判断被动语态和一般现在时；第2、3题需判断过去进行时；第4题需判断一般现在时被动语态；第5题需判断一般过去时。
【解析】1. 主语the object是动作design的承受者，when引导的时间状语从句表条件，用一般现在时的被动语态（am/is/are+过去分词），主语为单数，故填is designed。2. when引导的从句用一般过去时（rang），主句表示过去某一时刻正在进行的动作，用过去进行时（was/were+现在分词），主语students为复数，故填were talking。3. 同理，when从句用一般过去时（saw），主句用过去进行时，主语为复数，故填were reporting。4. 主语the smart glasses是动作use的承受者，表客观事实，用一般现在时的被动语态，主语为复数，故填are used。5. 时间状语last week表过去，用一般过去时的主动形式，故填produced。
【答案】1. is designed 2. were talking 3. were reporting 4. are used 5. produced
【知识点】一般现在时被动语态、过去进行时、一般过去时
【点评】本题为基础动词形式填空题，核心考查时态和被动语态的运用，需准确判断句子时态及主被动关系，属于初中英语基础考点，难度适中。
【难度系数】0.6

Ⅲ. 完形填空。
The exhibition of inventions was full of surprises. In the 1, the guide showed us Super See first. It 2 popular soon because it helped blind people. But then someone asked how it worked—the guide explained a mini-camera was connected to it.
Li Lei introduced the Smart Cook, but Han Lin started 3 questions about it because he wants to know more about it. When it was time for the final 4, the guide showed the 3D printer. It could make hundreds of objects. Teng Fei and Xie Tao tried it together and reached a full 5 of how it worked.
The crowd 6 loudly as they waited for the best invention. The 7 checked all inventions carefully and announced the 3D printer 8 the champion. Everyone cheered for this amazing invention!
( )1. A. beginning B. starting C. finishing
()2. A. kept B. became C. took
()3. A. asking B. getting C. giving
()4. A. show B. judge C. invention
()5. A. promise B. understanding C. memory
()6. A. whispered B. shouted C. remained
()7. A. runners B. judges C. reporters
()8. A. as B. to C. for

1.A 2.B 3.A 4.A 5.B 6.B 7.B 8.A

【分析】做完形填空需先通读全文把握主旨（本文围绕发明展览的活动展开），再结合语境、固定搭配、词义辨析逐一解题：1. 第1空考查固定搭配，对应展览的起始环节；2. 第2空需表达“变得受欢迎”的含义；3. 第3空考查动词短语的固定用法；4. 第4空结合展览场景判断名词含义；5. 第5空考查固定搭配；6. 第6空结合等待冠军的场景判断动词；7. 第7空结合宣布结果的角色判断名词；8. 第8空考查固定搭配。
【解析】1. 固定搭配“in the beginning”意为“一开始”，符合展览起始的语境，选A；2. “become popular”是固定搭配，表“变得受欢迎”，符合发明受关注的语境，选B；3. “start doing sth”是固定用法，“ask questions”表“问问题”，符合Han Lin想了解产品的语境，选A；4. 结合前文是发明展览，此处指“最后的展示”，用“show”，选A；5. “reach a full understanding of”是固定搭配，表“完全理解”，符合两人研究3D打印机的语境，选B；6. 等待冠军时人群会“大声呼喊”，“shouted”符合场景，选B；7. 负责宣布比赛结果的是“judges（评委）”，选B；8. “announce...as...”是固定搭配，表“宣布...作为...”，符合宣布冠军的语境，选A。
【答案】1.A 2.B 3.A 4.A 5.B 6.B 7.B 8.A
【知识点】固定搭配、词义辨析、完形填空解题
【点评】本篇完形围绕发明展览的活动展开，侧重考查常用固定搭配和语境理解，难度适中，需学生结合上下文逻辑和词汇搭配知识解题。
【难度系数】0.6

Ⅳ. 补全对话。
(A: Meimei B: Adam)
A: Hi, Adam! Could you retell what we saw at the invention exhibition yesterday?
B: 1. First, the guide showed us Super See at the starting line.
A: Right! Then he told us how it worked. 2.
B: It is used for helping blind people read, but it looks like normal sunglasses.
A: Oh, that was amazing. 3.
B: Next, they showed Smart Cook, and it could make hundreds of dishes.
A: And then the final invention, a 3D printer was shown. 4.
B: It could make houses, toys, and even human organs!
A: 5. I hope to go there again!

1. Sure.
2. What is it used for?
3. What happened next? / What did they show next?
4. What could it make?
5. Sounds cool / great / amazing...!

【分析】
本题为补全对话题型，需结合上下文的问答逻辑和日常交际用语填写合适语句。第1空对应A的复述请求，需填同意回应；第2空对应B介绍Super See的用途，需填询问用途的句子；第3空对应B提及接下来展示的发明，需填询问后续内容的句子；第4空对应B介绍3D打印机的功能，需填询问其制造物品的句子；第5空对应A对发明的赞叹，需填感叹类语句。
【解析】
1. 上文A请求Adam复述发明展内容，B需给出同意回应，故填Sure；
2. 下文回答Super See的用途，故填询问用途的特殊疑问句What is it used for?；
3. 下文提到Next展示Smart Cook，故填询问接下来内容的句子What happened next?；
4. 下文回答3D打印机能制造的物品，故填What could it make?；
5. 上文介绍完3D打印机的功能，A表示赞叹，故填Sounds cool等符合语境的感叹句。
【答案】
1. Sure.
2. What is it used for?
3. What happened next? / What did they show next?
4. What could it make?
5. Sounds cool / great / amazing...!
【知识点】
日常交际用语、补全对话、特殊疑问句
【点评】
本题考查日常交际中对对话语境的理解，结合上下文问答逻辑填写语句，贴近生活实际，难度较低。
【难度系数】
0.3