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sterday, last week, an hour ago, in 1982等。 2.在表示過去某個時(shí)間里發(fā)生的動作,用動詞的過去式構(gòu)成。 livelived例如:is/amwas arewereecame telltold interested B. play。版網(wǎng)%]15【2012山東濟(jì)南】53. Kevin will give less homework to his students if he ______ a teacher. A. bees B. bee C. became D. being16【2012湖北襄陽】39. —It’s difficult for village children to cross the river to school. —I think a bridge _____over the river. A. should be built B. will build C. is built D. was built 17【2012江蘇徐州】9. I know a little about Thailand, as I there three years ago.[來源:zzst*ep.~^] A. have been B. have gone C. will go D. went18. We all know that the earth _____ round the sun.A. goes B. went C. is going D. is going【課后作業(yè)】Life in the future will be different from life today. Between then and now many changes will happen. But what will the changes be?The population (人口) is growing fast. There will be many people in the world and most of them will live longer than people live now.Computers will be much smaller and more useful, and there will be at least (至少) one in every room. And puter studies will be one of the important subjects in schools then. People will work fewer hours than they do now and they will have more free time for sports, watching TV and travel. Traveling will be much cheaper and easier. And many more people will go to other countries for holidays.There will be changes in our food, too. More land will be used for building new towns and houses for all the people. Then there will be less room for cows and sheep, so meat will be more expensive. Maybe no one will eat it every day. Instead t