《How safe is your home?》Safety PPT课件下载
第一部分内容:课前自主预习
单词闯关
1. 某些;某个________→(adv.)________
2.他(她、它)们自己__________
3.食盐________
4.剪刀________
5. 刀__________→(复数)________
6.高温;加热________
7.烧伤;烫伤;燃烧________→(过去式)__________→(过去分词)__________
8.prevent____________
9.poison____________
10.slip________
短语互译
1. 扑灭________________
2.小心;注意________________
3.从……摔下来________________
4. 把……单独留下________________
5. have a shower________________
6.baking soda ________________
7.hurt oneself________________
8.be sure to do sth. _______________
句型在线
1. 厨房和浴室是房子里最危险的两个房间。
The kitchen and the bathroom are ________ ________
________ ________ ________ in the house.
2.许多人由于从椅子上摔下来而伤到了自己。
Many people hurt themselves _______ _______ _______ chairs.
3.不要用水来扑灭厨房的火。
________ use water to ________ ________ kitchen fires.
4.用小苏打或食盐代替。
Use baking soda or salt________.
5.使用剪子和刀子要小心!
________ ________ ________ scissors and knives!
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How safe is your home?PPT,第二部分内容:课堂互动探究
词汇点睛
1 prevent v. 阻止;预防
[观察] Can people prevent certain accidents?
人们能阻止某些事故吗?
Nobody can prevent him from going there.
没有人能阻止他去那儿。
[探究] prevent 是及物动词,意为“________”,后面可接名词、代词作宾语。prevent…(from) doing sth.意为“阻止……做某事”,相当于stop…(from) doing sth.和keep…from doing sth.。
We must take steps to prevent the earth from being warm.
我们必须采取措施阻止地球变暖。
2 themselves pron. 他(她、它)们自己
[观察] They can make a living by themselves.
他们可以靠自己谋生。
[探究] themselves 是人称代词they 的________代词。
[拓展] oneself的常用搭配:
enjoy oneself 玩得高兴 hurt oneself 伤到自己 teach oneself自学
help oneself to…随便吃(喝)…… by oneself 靠自己
3 knife n. 刀
[观察] He wounded his arm while using the knife.
他用刀的时候把自己的手臂割伤了。
Be careful with knives! 小心用刀!
[探究] knife的复数形式是________。
记忆口诀
巧记以f(e)结尾的名词变复数规则:
树叶半数自己黄,妻子拿刀去割草,
架后窜出一只狼,就像小偷逃命忙。
leaf(树叶), half(一半), self(自己), wife(妻子), knife(刀子), shelf(架子), wolf(狼), thief(小偷), life(生命)这9个名词变复数时,都要变f(e)为ves。 其他的以f(e)结尾的名词则直接加s变复数。
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