英语倍数表达法省公共课一等奖全国赛课获奖课件.pptx

倍数表示法第1页times as+adj./adv.+asThis bridge is 4 times as long as that one.In water,sound can travel nearly 5 times as fast as in air.Last year,Micky earned twice as much as his brother.第2页times+that/(the+n.)+ofThe mass of a hydrogen is 1840 times that of an electron.The earth is 49 times the size of the moon.The new runway for jet planes is 4 times the length of the one constructed 15 years ago.Size,length,weight,amount第3页times+比较级+thanThe productivity has been 4 times greater than usual.Some computers can work 500,000 times faster than any human being.第4页Double,triple,quadrupleThe efficiency of the machines has been more than tripled.第5页表增加动词+to+timesLast year profits rose to three times.Increase,raise,rise,go up第6页表增加动词+by+times.This year the value of our industrial output has increased to twice that of last years.The output has gone up by five times.第7页As much/many/large+again+asThe lab under construction will be as large again as the old one.第8页Half as much/many/large+again+asWheel A runs half as fast again as wheel B.第9页ExercisesThe area of Beijing City is about_ that of New York.a.Four times as much asb.As four times large as c.As four times greater thand.Four times as big as 第10页Last year,Mr.Smith earned_his brother.Last year,Mr.Smith earned_his brother.a.Twice as moreTwice as moreb.More twice thanMore twice thanc.Twice as much asTwice as much asd.Twice as more as Twice as more as The population in many Alaska cities has The population in many Alaska cities has _doubled in the past three years._doubled in the past three years.a.Large thanLarge thanb.As great asAs great asc.More thanMore thand.As many asAs many as第11页Staying in a hotel costs_renting a room in Staying in a hotel costs_renting a room in a dormitory for a week.a dormitory for a week.a.Twice thanTwice thanb.Twice as much as Twice as much as c.As much twice asAs much twice asd.As much twiceAs much twice1._30%of market has been occupied by that _30%of market has been occupied by that steel trading company.steel trading company.a.As great asAs great asb.As more as As more as c.As high as As high as d.As much asAs much as第12页The Earths gravity is about _ the moons.a.6 times stronger b.As strong as 6 timesc.Stronger than 6 timesd.6 times as strong as第13页