九年级英语上册Unit3SafetyLesson16HowSafeIsYourH

1、Less on 16:How Safe Is Your Home?【学习目标】知识目标：certa in, themselves, salt, scissors, knife, heat, burn;put out, bak ing sodaMany people hurt themselves by falling off chairs.Dontuse water to put out kitchen fires.Use bak ing soda or salt in stead.Be careful with scissors and kni ves!能力目标：Be able to use

2、 imperatives to express some safety tips.情感目标：Be careful with your safety in daily life.【重点及难点】祈使句的使用【导学过程】一、自主预习I.基础单词。I.阻止；预防_2.3._浴缸；浴盆_4.5.某些；几个_6.7.烘焙_8.9.毒药；毒物_10.II.食盐_12.13.刀_n.核心短语。摔下-_扑灭、熄灭 _滑倒_烧伤；烫伤；燃烧_他们自己_高温；炉灶_剪刀_苏打_代替、而不是_小心_川.检查单词及词组的读法并校正。2、合作探究Task 1：小组读课文弄懂文章大意，并找出课文中所涉及的短语和句型。Tas

3、k 2：小组讨论完成Lets do It 1.Task 3：小组讨论导学案上的Language Points.Task 4：完成Lets do It 2、3，核对答案，难点解析。Task 5：小组讨论Lets do It 4. Make a poster.三、交流展示Language Points:1. happen动词发生sth. happen to sb.某人发生了某事sb. happen to do sth.某人碰巧做某事E.g.你怎么啦？What happened to you?昨天我碰巧在街上遇到了一个朋友。I happened to meet a friend in the str

4、eet yesterday.他们那天碰巧外出吃饭。They happened to go out for dinner that day.2. be sure of与be sure to do的区别be sure of和be sure that一样，主语是人， 主语感到“有把握；确信” ；be sure to do的主语可以是人，也可以是物， 表示说话人推测“一定；必然会 例如：He is sure of his success./ He is sure that he will succeed.He is sure to succeed.他一定会成功。（说话人的看法）3. Many peop

5、le hurt themselves by falling off chairs.很多人从椅子上掉下来摔伤。fall off的意思是“（从）跌落；（从）掉下” 。例如：He fell off the ladder.他从梯子上摔了下来。fall off还有“离开；缩减”的意思。例如：o他确信他会成功。The students fell off one by one.那些学生一个一个地离开了My fathers business has fallen off since the end of 2013.42013年年底以来，我父亲的生意清淡了。4. Dont use water to put ou

6、t kitchen fires.（1） put out意思是“使熄灭；吹灭” 。和put相关的短语有：put up （搭起；举起；挂上；张贴）（穿上；戴上）5. Use baking soda or salt instead.;in stead of为介词短语，表示代替；作为.的替换” 。 例如：Jack was ill so I went instead.He didnt reply. Instead, he turned on his heel andleft the room.他没有回答， 反而转身离开了房间。We just had soup instead of a full meal

7、.我们没有吃全餐，只喝了汤。Now I can walk to work instead of going by car.现在我可以步行去上班，而不必开车了。6. Be careful with scissors and knives!使用剪子和刀子要小心！be careful with表示 “小心， 谨慎” ， 也表示 “吝啬” ；be careful of/about表示“关切；注意”。例如：He is usually careful with what he wants to say.他通常说话很谨慎。Why are you so careful with your money that

8、 you never buy anything for me?你为什么如此吝啬，从来不给我买东西？The kind lady is careful of/about the feelings of others.那位善良的夫人对别人的感情体贴入微。Grammar：语法点：Imperatives祈使句定义:用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句。祈使句因对象（即主语）是第二人称，所以通常都省略。祈使句的动词都为一般现在时，句末则使用句号来表示结束。例如：不要用水来扑灭厨房的火。，put off (推迟；延期)，put on(2)和fire相关的短语：catch fire (着火)

9、，make a fire (生火)，discover a fire (现火情)，light/start a fire (点火)，put out the fire (灭火)，set fire to sth. = setsth. on fire (放火)，be on失火；在着火）用小苏打或者盐代替。instead副词，意为“代替；反而；却”杰克病了，所以我去了。Go and wash your hands.（去洗你的手。命令）Be quiet, please.（Please be quiet.）（请安静。请求）Be kind to our sister.（对姊妹要和善。劝告）Watch your

10、steps.（走路小心。警告）Look out！Danger！（小心！危险！强烈警告，已如感叹句）Keep off thegrass.（勿践踏草坪。禁止）No parking.（禁止停车。禁止）No eating ordrinking.（禁止吃喝。 禁止）No littering.（禁止乱扔垃圾。禁止)表现形式 ：肯定结构:1.Do型（即：动词原形（+宾语）+其它成分）。如: Please have a seat here.请这边坐。 有的祈使句在意思明确的情况下,动词可省略。如：This way, please. = Go this way, please.请这边走。2.Be型（即:Be +

11、表语（名词或形容词）+其它成分）。如：Be a good boy!要做一个好孩子!3.Let型（即:Let+宾语+动词原形+其它成分）。如: Let me help you.让我来帮你。否定结构:1.Do型和Be型的否定式都是在句首加dont构成。如：Do nt forgetme!不要忘记我！Dont be late for school!2.Let型的否定式有两种:1“Dont + let +宾语+动词原形+其它成分”2“Let +宾语+ not+动词原形+其它成分”。如: Dontlethim go. / Let himnot go.别让他走。3.有些可用no开头,用来表示禁止性的祈使句。

12、如: No smoking!禁止吸烟!No fishing!禁止钓鱼!6四、当堂检测1.短语连线。1. put out A.2. be careful with B.3. leavealone C.4. be sure to do D.5. fall offE.n.句型展示。1.昨天早晨在这儿发生了一起交通事故。A _ _ _ here yesterday morning.2.大雨阻止他们继续干活。The heavy rain _ them _ working on.3.当心那些玻璃杯子。_ _ _ the glasses.4.露西不在这儿，问李莉吧。Lucy isnt here, ask L

13、ily _ .川.句型转换。1. He will take a bus there. He wont go by bike.（改为同义句）He will take a bus there_riding a bike .2. You should not break the traffic rules. （改为祈使句）_ _ the traffic rules.3. You should be careful with the knife. （改为祈使句）_ _ with the knife!五、作业布置1. Making a poster about staying safe at home.2. Preview Lesson 17.教学反思】务必/一定要做某事熄灭、扑灭从摔下小心、当心把单独留下参考答案：一、自主预习I.1. prevent2. slip3. bathtub4. burn5. certain6. themselves7. baking8. heat9. poison10. scissors