练习三

　　一.1.quietly 2.fit 3.popular 4.finishes 5.twelfth 6.word 7.twice 8.lost 9.medals 10.save

　　二.1.C 2.C 3.D 4.A 5.B 6.B 7.C 8.B 9.B 10.B

　　三.1.as the as mine 2.different from 3.Be careful with hurt 4.Make sure closed

　　5.hurt stay in hospital 6.lost their lives 7.should in danger 8.is getting smaller smaller

　　四.1.herself 2.theirs 3.me 4.themselves 5.them 6.yourself 7.us 8.Its 9.Our 10.his

　　五.best fit exercise learn alone took beautiful dangerous choose makes

　　六.1.D 2.B 3.A 4.D 5.D

　　练习四

　　一.1.feeding 2.feathers 3.close 4.readers 5.bored 6.languages 7.report 8. themselves 9.smell 10.organizing

　　二.1.in 2.about 3.on 4.from 5.as 6.of 7.of 8.on 9.for 10.in

　　三.1.the most popular 2.telling so much funny 3.saved out of ago 4.has problems

　　5.much pay for 6.good at telling so happy 7.protect won’t survive 8.live up to

　　四.1.finish 2.to speak 3.brushes 4.is 5.is flying 6.is having 7.watching 8.will reach 9.stops 10.to chat

　　1.B 2.A 3.A 4.B 5.C 6.D 7.A 8.D 9.B 10.C

　　六.exciting famous the-most-popular interesting cleaner more-beautiful the-nicest more