Scientists are making great progress in robot fish technology. A team from Harvard University made a soft robot fish. It can swim at 0.5 meters per second for 8 hours non-stop. Its body is flexible and moves like a real fish!
At the same time, Massachusetts Institute of Technology (MIT) researchers made small robot fish. They work together just like a real fish school. These AI are about as big as a smartphone. They use sound waves（声波）to talk underwater. In a test in the Maldives, 50 robot fish mapped a coral reef（珊瑚礁）in only 3 days. It would take human divers 2 weeks to do this job!
There is also good news for cleaning the ocean. Dutch scientists made a special “cleaner robot fish” to pick up plastics（塑
料）. Each fish can clean about 2kg of trash every hour. The European Union（欧洲联盟）will test this technology in the Mediterranean Sea soon. What's more, scientists believe that in the future, these robot fish could be improved to work in even more complex（复杂的）ocean environments, helping us better understand and protect the underwater world.
()13. What is special about the Harvard robot fish?
A. It can fly above water.
B. It swims like a real fish for 8 hours.
C. It can talk to dolphins.
D. It changes colours.
()14. How do MIT's tiny robot fish communicate?
A. By sending text messages.
B. By using light signals.
C. With sound waves.
D. Through WiFi.
()15. Which problem does the Dutch robot fish help solve?
A. Air pollution.
B. Ocean plastics.
C. Noise pollution.
D. Overfishing.
()16. Why are robot fish better than human divers for some jobs?
A. Because robot fish don't need to sleep.
B. Because robot fish can work faster in large groups.
C. Because robot fish can finish complex work in the ocean.
D. All of the above.

13. B 14. C 15. B 16. D

【分析】
做这类英语阅读理解题，需先提取每个问题的关键词，回到原文对应段落定位信息，将选项与原文内容逐一比对，排除无依据的选项，从而得出正确答案。
13题关键词为“Harvard robot fish”，定位第一段；14题关键词为“MIT's tiny robot fish communicate”，定位第二段；15题关键词为“Dutch robot fish solve”，定位第三段；16题需结合全文信息分析各选项的合理性。
【解析】
13题：定位原文第一段，哈佛软机器鱼“can swim at 0.5 meters per second for 8 hours non-stop. Its body is flexible and moves like a real fish!”，选项B“游8小时像真鱼”符合原文；A（飞）、C（和海豚交流）、D（变色）原文未提及，排除，故选B。
14题：定位原文第二段，MIT小机器鱼“They use sound waves（声波）to talk underwater.”，对应选项C；A（短信）、B（光信号）、D（WiFi）无依据，排除，故选C。
15题：定位原文第三段，荷兰“cleaner robot fish to pick up plastics（塑料）”，对应选项B（海洋塑料）；A（空气污染）、C（噪音污染）、D（过度捕捞）不符合，排除，故选B。
16题：分析选项：A. 机器鱼可长时间工作（如哈佛的8小时不停），无需睡觉；B. 成群工作效率高（50台3天完成人类2周的珊瑚礁测绘）；C. 可在复杂海洋环境工作（未来应用）；三个选项均符合，故选D。
【答案】13.B 14.C 15.B 16.D
【知识点】英语阅读理解，细节理解，推理判断
【点评】本题围绕机器鱼的研发与应用展开，考查学生快速定位原文细节、推理判断的能力，需学生仔细比对原文与选项，难度适中。
【难度系数】0.5

Ⅳ. 语法填空。
Students today are preparing for the future in many (1) (difference) ways. As for study, they know they need to keep their minds (2) (health). They try to spend (3) (little) time on video games and more time on useful things.
Friendship also plays an important role. They believe good friends can help them grow. So they value the friendship (4) those who are kind-hearted. In the future, with the development of society, there may be (5) (few) simple jobs, so students are learning more skills.
When it comes to technology research, they are thirsty (6) new knowledge. They know the world is changing fast. They want to be better at using technology (7) their parents.
Moreover, students are trying to think (8) (flexible). They understand that they will face many (9) (problem). If they can think creatively, they (10) (be) able to solve them more easily. By doing these things, students are getting themselves well-prepared for the future.

1. different 2. healthy 3. less
4. of 5. fewer 6. for 7. than
8. flexibly 9. problems 10. will be

【分析】
本题为语法填空题，需结合词性、固定搭配、语法规则逐一分析每个空：
1. 第1空：空格后是名词ways，需用形容词修饰，名词difference的形容词形式为different；
2. 第2空：固定结构“keep + 宾语 + 形容词”表状态，名词health的形容词是healthy；
3. 第3空：由后半句more可知需用little的比较级less，对应less与more的结构；
4. 第4空：固定搭配“the friendship of sb”表示“和某人的友谊”，需填介词of；
5. 第5空：jobs是可数名词复数，表“更少的”用few的比较级fewer；
6. 第6空：固定短语be thirsty for意为“渴望”，填介词for；
7. 第7空：前面有比较级better，需用连词than构成比较结构；
8. 第8空：修饰动词think需用副词，flexible的副词是flexibly；
9. 第9空：many后接可数名词复数，problem的复数是problems；
10. 第10空：if引导条件状语从句，遵循“主将从现”，主句用一般将来时will be。
【解析】
1. 空格修饰名词ways，需用形容词，difference的形容词为different，故填different；
2. 考查固定结构keep sth + adj.，health的形容词是healthy，故填healthy；
3. 由more可知此处用little的比较级less，故填less；
4. 考查固定搭配the friendship of...，表示“……的友谊”，故填of；
5. jobs为可数名词复数，表“更少的”用few的比较级fewer，故填fewer；
6. 考查固定短语be thirsty for（渴望），故填for；
7. 前面有比较级better，比较级结构用than，故填than；
8. 空格修饰动词think，需用副词，flexible的副词是flexibly，故填flexibly；
9. many后接可数名词复数，problem的复数为problems，故填problems；
10. if引导条件状语从句，从句用一般现在时，主句用一般将来时，故填will be。
【答案】
1. different 2. healthy 3. less 4. of 5. fewer 6. for 7. than 8. flexibly 9. problems 10. will be
【知识点】
形容词与副词转换、固定搭配、比较级的运用
【点评】
本题考查初中英语核心基础语法知识点，涵盖词形转换、固定搭配、比较级及条件状语从句，题型常规，注重对学生基础语法掌握情况的考查，难度适中。
【难度系数】
0.7