Grade 11 - Unit 11: Sources Of Energy

Make conditional sentences for the following situations.

1. The war will spread everywhere if we don’t stop it.

 Unless

2. All our beautiful forests will be destroyed if we do nothing to preserve them.

 Unless

3. If he hasn’t got a ticket, they won’t let him in.

 Unless

4. If it doesn’t rain, we will have no water to use.

 Unless

5. These flowers will die if nobody waters them.

 Unless

6. Do your exercises or you will be punished.

 Unless

7. The building is too high. He can’t climd up.

 If

8. That house is too expensive. I can’t buy it.

 If

9. He didn’t work hard last term, he lost his job.

 If

10. Mary didn’t have money with her. She couldn’t buy that present.

 If

11. There was a test yesterday. You didn’t know that, so you didn’t study.

 If I had known that

12. Your friend was in the hospital. You didn’t know that, so you didn’t visit her.

 If I had

13. I’ve never met your friend. You didn’t know that, so you didn’t introduce me.

 If I had

14. It was cold yesterday, so I didn’t not go for a walk.

 If it

15. I am tired so I can’t cycle to work.

 If I

 

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Choose one word whose underlined part is pronounced differently. A. comment B. solar C. ecologist D. fossil A. with B. tooth C. both D. tenth Choose one word whose stress pattern is different. A. renewable B. infinite C. alternative D. potential A. consumption B. resource C. recipient D. pesticide A. maintenance B. geothermal C. satisfaction D. prohibition Choose the one best answer to complete each sentence. Oil, coal and natural gas are ________. A. nuclear energy B. fossil fuels C. plentiful D. infinite We try to make full use of our local________. A. ecology B. potential C. economics D. geothermal Scientists have done researches on ________ activiries of the world’s volcanoes. A. sport B. ecological C. geothermal D. geodetic Vietnam is rich in ________ , such as coal, apatite, bauxite, etc. A. natural resources B. seas C. land D. fish Some people think nuclear power is the only real________. A. alternation B. energetic C. alternative D. fossil fuel Do you know the girl ________ a long white dress? A. wears B. to wear C. wear D. wearing The house________ 40 years ago is still in good condition. A. which built B. to build C. built D. building I like the food________ by my mother. A. was cooked B. cooked C. which cooked D. cooking Linda was the last student________ at the oral exam. A. to be asked B. asking C. asks D. to ask The man________ the bank is a millionaire. A. is entering B. entering C. to be entered D. enters Put the verb into the correct tense: My parents let me (go) ________ out without (say) ________________ anything. George (not, complete) ________________ the assignment yet. Janet and Betty (play) ________________ tennis with Jack and me every afternoon. Tom used to (go) ________________to a lot of parties when he was a student. Last night, he (apologize) ________________ me for (arrive) ________________ late. My grandfather (die) ___________ after he (be) ________________ ill for a long time. I (ask) ________________ him (take) ________________ you to school tommorow. My sister (write) ___________ the first article when she (be) ____________ 14 years old. I (find) _____________ this old photo when I (look) ________________ for my passport. When we (arrive) ________________ at the meeting, the first speaker (just, finish) ________________ speaking and the audience was clapping. Make conditional sentences for the following situations. The war will spread everywhere if we don’t stop it. @ Unless All our beautiful forests will be destroyed if we do nothing to preserve them. @ Unless If he hasn’t got a ticket, they won’t let him in. @ Unless If it doesn’t rain, we will have no water to use. @ Unless These flowers will die if nobody waters them. @ Unless Do your exercises or you will be punished. @ Unless The building is too high. He can’t climd up. @ If That house is too expensive. I can’t buy it. @ If He didn’t work hard last term, he lost his job. @ If Mary didn’t have money with her. She couldn’t buy that present. @ If There was a test yesterday. You didn’t know that, so you didn’t study. @ If I had known that Your friend was in the hospital. You didn’t know that, so you didn’t visit her. @ If I had I’ve never met your friend. You didn’t know that, so you didn’t introduce me. @ If I had It was cold yesterday, so I didn’t not go for a walk. @ If it I am tired so I can’t cycle to work. @ If I Tag questions Her name is Linda Martin, ________________? You often have bread and meal for breakfast, ________________? He never drink wine, ________________? I think she is a good teacher, ________________? No salt is needed, ________________? Read the passage and answer the following questions: Scientists are now looking for cheaper way to use solar energy to heat air and water. Many buildings are using solar energy to heat their water now. Solar unit on the roofs of buildings collect the energy and use it to heat watwer. Although these units are still very expensive, more and more people are buying solar hot water heaters. Universities and colleges give solar energy courses where students learn to build their own solar collectors. They are also many books that explain the construction of solar collectors. In the future, there will be more and more solar collectors, especially in the sunny desert areas of the world. What are the scientists doing now? @ Are solar units cheap or expensive? @ Where do students learn to build their own solar collectors? @ Do you think solar energy is expensive? @ Why do(n’t) you think so? @ ------THE END------

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