全部来自 AI 原创生成并经逐题审校的题目，带 精品 标记的为 AI 复审通过。整卷生成请去组卷。
把句子改成询问“我们应该节约多少水”：How ___ water should we save?
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用 save 或 protect 填空（首字母已给出）。1. We should s______ water because there is not much water in some places. 2. Trees can p______ the air and make it clean. 3. Don't waste paper. We should s______ paper and use both sides of it. 4. We must p______ the Earth, our only home.
选词填空，从括号中选出正确的词填在横线上。1. We should ______ water to keep our planet clean. (save / protect) 2. Please ______ the trees, don't cut them down. (save / protect) 3. ______ energy, turn off the lights when you leave. (Save / Protect)
Which sentence correctly describes an environmental problem in the city? A. The streets are clean and beautiful. B. Smoke from factories makes the air dirty. C. We can plant more trees in the park. D. Rubbish bins help keep the city tidy.
英语课上，老师给出三个环保提示语： ① We should not waste water. ② We can use plastic bags to make other things. ③ We should turn off the lights when we leave. 下列哪个选项能按顺序正确概括这三句话的含义？ A. save—recycle—save energy B. recycle—save—save energy C. save energy—save—recycle D. save—save energy—recycle
根据中文提示完成句子：Look! The factory ___ ___ (make, 正在制造) a lot of black smoke. That's why the air is dirty.
根据中文意思补全单词：空气中细小的灰尘：d___
Tom 正在写关于城市环境问题的短文。下面哪一句能正确描述环境问题并给出合理建议？A. Our city is clean and beautiful, so we should throw rubbish everywhere. B. Smoke from cars makes the air dirty. We can take the bus to school. C. The river is dirty because fish swim in it. D. Rubbish makes the streets clean, so we like it.
用所给动词的适当形式填空：The streets look messy and dirty because some people ___ (throw) rubbish on the ground right now.
At a swimming pool, Mia reads two signs: “You must shower before you swim.” and “You mustn’t run near the pool.” She has not showered yet, and she is running. What two things must Mia do to follow the rules? She must ___ and ___.
补全表示“不能”的单词：Can I eat here? — No, you c__'t.
At the museum, Tom sees a sign that says "No pets". His friend asks: "Can I bring my dog in?" What should Tom say? A. You mustn't bring your dog in. B. You must bring your dog in. C. You must buy a ticket for your dog. D. You mustn't visit the museum.
Tom is at the library. He sees a sign that says "No eating or drinking". Which of the following is he NOT allowed to do there? A. Read books quietly B. Drink orange juice C. Sit on the chair D. Look at the signs
在图书馆入口看到标识“Keep quiet”。这个标识表示：我们必须 ___。
在公园里，你想坐在长椅上，管理员说可以。选出合适的对话。 A. Can I sit here? Yes, you can. B. Can I sit here? No, you can. C. Must I sit here? Yes, I can. D. Do I sit here? Yes, you do.
十年前，学校图书馆很小，里面的书不多，学生在教室里看书。现在，图书馆很大，书也多了，学生在图书馆里看书。哪句话正确？ A. The library was small before, but it is big now. B. The library is small before, but it was big now. C. There were many books before, but there are few books now. D. Students read in the library before, but they read in the classroom now.
选择正确的句子，将下列陈述改写为含 used to 的表达：Lily walked to school every day before, but now she takes the bus. A. Lily used to walk to school. B. Lily use to walked to school. C. Lily is used to walk to school. D. Lily didn't used to walk to school.
Goldilocks was very ___ after walking in the forest for a long time. She wanted to sit down.
Ben 想把下面的句子改写成一篇规范日记的开头（日期行＋天气行＋正文首句），已写好一部分，请补全空格（每空一词）。 改写素材：日期是10月2日，星期三；天气：多云（cloudy）；正文：I visit my grandma and we cook noodles together. 这件事是昨天发生的。 ____, 2nd October It ___ ___. I ___ my grandma and we ___ noodles together. （提示：日记需用一般过去时，且日期行应包含星期。）
In the past, Amy ___ TV in the evening. Now she reads books. A. watch B. watched C. watches D. watching