Unit 3 Lesson 16 课件2023-2024学年冀教版九年级英语上册

Unit 3 Lesson 16 How Safe Is Your Home? 学习目标 预习检测 知识梳理 课堂总结 学习 导航 重点探究 当堂检测 新课导入 Watch a video. 1.掌握本课单词:prevent, certain, burn, slip, put out 等 2.掌握祈使句的用法 3.了解家里存在的安全隐患并且知道如何防范危险 学习目标 预习检测 1.The naughty boy always makes his sister ____. A. cry B. crying C. cries D. to cry 2.—They go to school early in the morning. —________. A. So do Tom. B. So Tom do. C. So does Tom. D. So Tom does. A C 3.We all introduced_______before the meeting started. A.ourself B.us C.ourselves D.we 4.Jenny put her new phone onto the table_______. A.careful B.care C.careless D.carefully 5.It's not easy ____ English well in a short time. A.to learn B.learn C.learning D.learns C D A 知识梳理 1.Can people prevent certain accidents? prevent为及物动词,意为“阻止,预防”,常用结构prevent sb. from doing sth.意为“阻止某人做某事”,与stop sb. from doing sth.用法相同。 2.So be careful! careful为形容词,意为“小心的,仔细的”,其副词形式为carefully,意为“小心地,仔细地”;名词形式为carefulness,意为“小心,仔细,认真”。 3.Many people hurt themselves by falling off chairs. ◆hurt oneself意为“伤着自己”。hurt themselves表示“伤到他们自己”,其中themselves是反身代词。 ◆fall off意为“掉下来”,强调“从什么地方掉下来”,相当于drop/fall down from,后面接名词作宾语。 4.Don’t use water to put out kitchen fires. ◆这是一个否定形式的祈使句。以动词原形开头的祈使句变为否定形式时,多在动词原形前加don’t。 ◆use sth. to do sth.意为“用某物做……”,to do不定式表目的。 ◆put out意为“扑灭,熄灭”,是由“动词+副词”构成的动词短语,后接代词作宾语时,代词要放在put与out中间。 ◆和fire相关的短语:catch fire(着火),make a fire(生火),discover a fire(发现火情),light/start a fire(点火),put out the fire(灭火),set fire to sth.=set sth. on fire(放火烧……),be on fire(失火,在着火)。 5.Use baking soda or salt instead. instead为副词,意为“代替,反而,却”,instead of也表示“代替”。 【辨析】instead,instead of instead常位于句末,译作“而是”,instead of常位于句中,译作“而不是”。 6.Be careful with scissors and knives! be careful with意为“小心,谨慎……”。 7.It’s easy to slip and fall on a wet floor. 不定式作主语时,往往用it作形式主语,而将不定式放在后面。这句话中的主语是to slip and fall on a wet floor,It是形式主语,is是系动词,easy是表语。 8.Be sure to keep the bathroom floor dry after you have a shower or bath. ◆be sure to do sth.意为“务必/切记去做某事”,常用于祈使句中,表示说话人向对方提出