冀教版九级英语 Unit 1 Lesson 4《Don't Smoke, Please》 课件 (.ppt

Lesson4：Don’tSmoke,Please!Keywords&phrases:
Beabletouse:smoke,harmful,public,law,whenever,risk,somebody;millionsof,asaresultof,second-handsmoke,takearisk,getintothehabitof,stayawayfrom
Tounderstand:disease,lung,harm,breathe,cigaretteWheneversomeoneoffersyouacigarette，youshouldalwayssayno.Don’ttakethatrisk.Everyonewantstoliveinacleanenvironmentandbreathefreshair.

Scanandmatch:(跳读连一连)（注：自己快速阅读，然后连线）Whyissmokingharmful?Learntobeareporteringroups.（两个人一组编对话：一个扮演小记者一个是中学生）
A:Excuseme.MayIaskyouaquestion?
B:OK.
A:Whyissmokingharmful?
B:BecauseSmokingisbadforyourhealth/Smokingpollutestheenvironment/
Itcancausediseasesoftheheartandlungs/
/Second–handsmokeisharmfultopeoplewhodon’tsmoke.A：Whatshouldwedo？
B：Nevertouchcigarettes./
Whensomebodytalksaboutsmokingchangethetopic./
Encourageyourfamilymemberstostopsmoking./
Eatmorefruitsandvegetables,domoreexercise,andformgoodhabits.Areyoufamiliarwiththesesentences?
Theyarefromthebookswehavelearned.ModalVerb—should
情态动词–shouldShould的用法：3.should表推测，暗含很大的可能。如：
It’s4:30.TheyshouldbeinNewYorkbynow.
现在是四点半，他们应该到达纽约了。
Threeweeksshouldsuffice.
三个星期应该足够了。4.should可在某些从句中，表虚拟语气。如：
Isuggestthatyoushouldstayhereasifnothinghadhappened.
我建议你应该待在这儿，好像什么事也没有发生。
Shewasterrifiedlesttheyshouldgoontalkingabouther.
她感到害怕，唯恐他们再说她的事。
Ifheshoulddropin,givehimmymessage.
他若来访，就将我的消息给他。5.should表感情色彩，常用在以why,how开头的疑问句中。如：
Whyshouldn’tyouinvitehim?
为什么你不邀请他？
Idon’tseewhyweshouldn’tmakefriends.
我不明白为什么我们竟不能成为朋友。
HowshouldIknow?我怎么知道？
Loveyourlifeandstayawayfromcigarettes.Makeaposter