3、,butwhenyou'respeakingyoudon'thavetimetothinkaboutthecorrectgrammar.Don'tworry,that'scompletelynormal!Ifsomeoneexplains(解释)toyouexactlyhowtoswim,canyoujustgetinthewaterandswimwithoutpractising?Ofcoursenot!It'sjustthesamewithgrammar.Themoreyoupractise,thebetteryou'llbe. R
7、 B. 方便的 C. 私密的 D. 有耐心的(4)Whatcanweknowfromtheexample"howtoswim"inPara.3?A. Practisingisthekeytolearninggrammar.B. It'shardtolearnswimmingandgrammar.C. Learningswimmingneedstherightway.D. It'sdanger