20xx春牛津譯林版英語九下unit 4《life on mars》（grammar）(文件)
【正文】 ______________ Could I leave school early today? Can I join you/go with you? Could I bring my dog? (6) You are in the library at lunchtime. You ask the librarian if you are allowed to eat your lunch in the library. ________________________________ (7) You are on the bus again. It is stuck in traffic. You ask the driver to let you off between stops. _________________________________ May I eat my lunch here? Could/May I get off here? III. Complete the following sentences by using object clauses. 1. Earth is being more and more crowded and polluted. Most people believe ___________________ _________________________________ 2. Humans need water, food and air to survive. Everyone knows _____________________ _____________________ that Earth is being more and more crowded and polluted. that humans need water, food and air to survive. 3. Gravity will be a problem for settlers on Mars. I don?t think _______________________ ___________________________ 4. We may even live in a dome with ten bedrooms. Do you think _______________________ ___________________________________ that gravity will be a problem for settlers on Mars. that we may even live in a dome with ten bedrooms? 5. The plants on Mars will produce food, water and oxygen. Scientists tell us _______________ _____________________________ __________ that the plants on Mars will produce food, water and oxygen. IV. Correct the mistakes in the following sentences. 1. I don?t know if will the students arrive on time. I don?t know if the students will arrive on time. 2. Daniel is still not sure he wants to go to Mars. Daniel is still not sure if/whether he wants to go to Mars. 3. Simon wants to know that if we need to wear special boots on Mars. Simon wants to know if we need to wear special boots on Mars. 4. Daniel is wondering that there are shopping malls on Mars. Daniel is wondering if there are shopping malls on Mars. 5. The students want their teacher to tell
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