SectionⅣGrammar动词不定式&but+动词不定式1.(教材P32)Scientistshavetriedmanywaysto__solve(solve)thisproblemandinChina,amasscampaignhasbeenstartedto__help(help)solveit
2.(教材P32)Theyareoftensothickthatyoucannotseethesun,andthewindissometimesstrongenoughto__move(move)sanddunes
3.(教材P32)Therewasnothingto__be__done(do)
ItwasthemostfrighteningandthemostdangeroussituationI’veeverbeenin
4.(教材P32)SandstormsinChinaappearto__have__increased(increase)inrecentyearsasaresultof“desertification”.5.(教材P32)Thestormssometimescontinuealldayandtrafficmovesveryslowlybecausethethickdustmakesitdifficultto__see(see).6.(教材P32)Whenasandstormarrivesinthecity,weatherexpertsadvisepeoplenotto__go(go)out
7.(教材P32)Thewindsareverystrong
It’sdifficultto__breathe(breathe)andthedustmakesmeill
8.(教材P32)To__prevent(prevent)itcomingnearer,the