冀教版九年级英语Lesson16课件.pptx--（课件中不含音视频）

1、冀教九年级冀教九年级1.掌握下面的词汇：掌握下面的词汇：prevent,certain,themselves,baking,soda,salt,scissors,knife,poison,heat,burn,bathtub,slip2.学会珍惜爱护自己及他人的生命；学会学会珍惜爱护自己及他人的生命；学会在现实生活中保护自己。在现实生活中保护自己。prevent certain themselves baking soda salt scissors knife poison heat burn bathtub slipUseful words and expressionsprevent动词（

2、及物）动词（及物）(prevented;prevented;preventing)防止防止,预防预防Eg.Vitamin C is supposed to prevent colds.维生素维生素C被认为被认为能预防感冒。能预防感冒。动词（不及物）动词（不及物）(prevented;prevented;preventing)妨碍妨碍;阻止阻止heat作不可数名词，意为作不可数名词，意为“热、热度热、热度”。如：。如：The sun gives us light and heat.太阳给太阳给了我们光和热。了我们光和热。作及物动词，意为作及物动词，意为“使使温暖、加热温暖、加热”。如：如：Dan

3、ny heated the water just now and it is hot now.丹尼刚才把水加热了，现在水丹尼刚才把水加热了，现在水热了。热了。Many people hurt themselves by falling off chairs.短语短语by doing意为意为“通过通过、由、由于于”，在句中作状语，表示原因或方式。，在句中作状语，表示原因或方式。eg.Lisa learns English by listening and speaking.丽丽萨通过听和说学英语。萨通过听和说学英语。Its easy to slip and fall on a wet floor

4、.不定式作主语时，往往用不定式作主语时，往往用it作形式主语，而将作形式主语，而将不定式放在后面。这句话中的主语是不定式放在后面。这句话中的主语是to slip and fall on a wet floor,it是形式主语，是形式主语，is是系是系词，词，easy是表语。如：是表语。如：To hear your voice is so nice.=It is nice to hear your voice.听到你的声音真高兴。听到你的声音真高兴。To learn English well is very important.=It is very important to learn Eng

5、lish well.学好学好英语很重要。英语很重要。Discuss1.Now,do you know where the most dangerous rooms are?What are they?2.Talk about something that happened in your home.How did you save it?3.Do you think the safety tips are useful?Do you have any other good tips to prevent accidents at home?用适当的介词或副词填空。用适当的介词或副词填空。byoutat/onoffoutwithin