⑵以Let開頭，可以表示建議和請求。女如Let'gotoschool.我們去學校吧！⑶Be動詞+形容詞，表示請求、建議或提醒對方。如：Bequiet!請安靜！Becareful!小心?、萅o+名詞/動名詞，是警示語，表示禁止，在公共場合經常見到。女如Nophotos!禁止拍照！Nosmoking!禁止吸煙!祈使句的否定形式祈使句的否定形式就是在句子開頭加“表示建議、勸告。祈使句的否定形式就是在句子開頭加“表示建議、勸告。女口：Climbthemountains!（改為否定句）練習：禁止停車Nopark)不要玩電腦游戲：playcomputergames.四、課堂總結及作業(yè)（1）按課本內容填空youbuythathat?—Iitattheshoppingmall.—It'snice.itexpensive?—No,itcheap,butthispairofsunglassescheaper.—You.Butcanyousee,Gogo?Icansee,Tony.—Let'sgothepark..Let'srun.—Comeon.I'mthanyou.—Hi,Gogo.Whatareyou?—I.（2）根據課本單詞及中文提示填空（讓）mehelpyou.Thatisinteresting.那個小丑真有趣.Thiscar（look）cool.翻譯am（think）我在思考.我要兩杯牛奶.Iwanttwo（glass）of（牛奶）（多少錢）be）your衣服）haveac，Icangetupat6am.Wheredidyou（buy）that（帽子）Don't（be）lateagain，Tony.不要再遲到了，托尼10.She能游泳）閱讀理解Peoplearebusyworkingeveryday.Theydonothaveenoughtimetodoexercise.Somanypeoplebecometoofatortoothin.Weneedtodoexercisetokeepfit.Therearemanykindsofexercise.Bendingandstretchinghelpsusmoveeasily.Beforeweplayballgamesorswim,weshalldobendingandstretchingexercisefirst.Thiskindofexerciseissometimescalledwarm-upexercise.Runningisalsogoodexercise.Ifwecannotrunfast,wecanjog.Joggingmeansrunningslowly.Again,beforewerunorjog,wemustdosomewarm-upexercise.Also,weshouldnotrunorjoginbusystreets.Itisnotsafeandtheairthereisoftendirty.()1.makesmanypeopletoofatortoothin.EatingtoomuchB.DrinkingtoomuchC.HavingnotimetodoexerciseD.Doingtoomuchexercise()2.Beforeweplayballgames,wemustfirst.A.swimB.runC.jogD.dowarm-upexercise()3.Whatdoesjoggingmean?A.Itmeansbendingandstretching.B.Itmeanswarm-upexercise.C.Itmeansrunningfast.D.Itmeansrunningslowly.()4.WhichofthefollowingsentencesisRIGHT?A.Peopleshouldn'tbebusyworkingB.Therearenotmanykindsofexercisetokeepfit.C.Joggingmeansrunningquickly.D.Busystreetsarenotgoodplacesforrunning.()5.WhichofthefollowingsentencesisWRONG?Peoplehavenotimetodoexercisebecausetheirworkisverybusy.Wecandosomewarm-upexercisetorunfast.Wecannotjoginbusystreetsbecauseitisdangerous.Weshalldobendingandstretchingexercisetowarm-upourbodybeforewedoexercise.(4)找出劃線部分單詞讀音與其他三個不同的單詞。()1.A.bedB.redC.plentyD.he()2.A.seaB.beeC.freeD.great()3.A.thirtyB.birdC.doctorD.w