英语人教版八年级下册第七单元unit7SectionB.ppt

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1、Unit 7 Whats the highest mountain in the world?Section BPeriod One预习检测：预习检测：用适当的介词或副词填空用适当的介词或副词填空1.The panda can stand _two legs.2.My pet dog eats half a kilo _meat every day.3._birth,little Tom was only 2 kilos.4.The little elephant is _ two years old.5.Do you think people will live up _ 200 years

2、?onofAt aboutto掌握倍数表达法掌握倍数表达法To learn new words:weigh,at birth,live up to问题引导下的再学习Compare facts about these two animals.Use the language in the box to help you make sentences.(1a)Example sentence:This elephant weighs many times more than this panda.(200 cm taller/shorter,weigh much more/less,eat muc

3、h more/less,eat many times more.)This panda is 200 cm shorter than this elephant.This elephant eats much more than this panda.This elephant weighs many times more than this panda这头大象比这只大熊猫重许多倍time在句中的意思是_,是_ (可数/不可数）名词，用来表示三倍及以上的倍数，表达倍数常用以下句型：1.A+谓语+.times+形容词或副词的比较级+than+B练习：这棵树比那棵高三倍。你的书包比我的大三倍倍，倍

4、数倍，倍数可数可数This tree is three times taller than that oneYour bag is three times larger than mine2.A+谓语谓语+.times+as+形容词或副词的原级形容词或副词的原级+as B练习：起居室是厨房的三倍练习：起居室是厨房的三倍3.A+谓语谓语+.times+the+计量单位计量单位（size/lengh/height/weight.)+of+B练习：你的蛋糕的大小是我的蛋糕的四倍练习：你的蛋糕的大小是我的蛋糕的四倍The living room is three times as large as t

5、he kitchenYour cake is four times the size of mine观察思考：观察思考：How much does it weigh?此句中此句中weigh是是_词，意思是词，意思是_He weighed the fruit.此句中此句中weigh是是_词，意思是词，意思是_Whats the weight of the little dog?此句中此句中weight是是_词，意思是词，意思是_动动 重量是重量是动动 称称.的重量的重量不可数名不可数名 重量，体重重量，体重拓展：拓展：weight常用于短语常用于短语lose weight“减肥减肥”Listen

6、 and check()the numbers you hear._ 100 _ 16 _ 20_ 20 _ 50 _ 120_ 0.1 _ 0.2 _ 1501bListen again and complete the sentences.1.At birth,a baby panda is about _ to _ kilos.2.At birth,a baby panda is about _ cm long.3.A baby panda is not black.It is _ and it has no _.4.A panda can live up to _ to _ years

7、.1c0.20.1pink1520teeth30观察1c,找出短语“出生时”_练习：我的女儿出生时重三公斤。“活到.岁”_练习：我希望我的父母能活到100岁at birthMy daughter weighted 3 kilos at birth.live up to.yearsI hope my parents can live up to 100 years.拓展：up to.“至多有.”练习：I can take _(至多有至多有)four people in my carup to课时重点回顾课时重点回顾weigh的用法的用法倍数表达法倍数表达法重要短语重要短语注注:另附另附word文

8、档。文档。点击此处链接点击此处链接达标检测达标检测1.我弟弟重大约四十公斤。我弟弟重大约四十公斤。My brother _ about _ _.2.刚出生时，一只熊猫重大约刚出生时，一只熊猫重大约0.1到到0.2公斤公斤_ _,a baby panda is about 0.1 to 0.2 kilos3.所有铅笔中这支铅笔最长。所有铅笔中这支铅笔最长。The pencil is _ _ _ _4.那头大象大约有那头大象大约有350厘米高。厘米高。The elephant is about _ _ _5.它每天吃十公斤食物它每天吃十公斤食物It eats _ _ _ food a day.we

9、ighs forty kilosAt birththe longest of all350 cm tallten kilos of合并句子。合并句子。1.Im thirteen.Jim is fourteen.(old)2.Mr.Green is 1.75m.Mr.Smith is 1.70m.(short)3.The red box is 2kg.The yellow box is 4kg.(heavy)4.My hat is 20 yuan.Alices hat is 30 yuan.Lucys hat is 50 yuan.(cheap)Im older than Jim.Mr.Smit

10、h is shorter than Green.The yellow box is heavier than the red box.My hat is cheaper than Alices hat and Lucys hat.1.Jim is very _.Li Lei is _ than Jim.(hungry)2.Kates mooncakes are _ of all.(nice)3.Your box is _ than mine.But his is _ of the three(heavy).4.Unit 2 is quite _.Unit 3 is _ than Unit 2.

11、(hard)hungryhungrierthe nicestheavierthe heaviesthardharderComplete the sentences with the right forms of the words.5.This TV play is _ than that one.(good)6.My mother is very _.She is _ in my family.(busy)7.Lingling gets to school _ than the others.(early)8.She speaks English _ in our class.(well)b

12、etterbusy the busiestearlierbest9.I think English is as _ as Chinese.(important)10.This picture is _ of the four.(beautiful)11.Lucy did _ than Lily.(bad)importantthe most beautifulworse翻译下列句子。翻译下列句子。1.刚出生时，熊猫宝宝大约有刚出生时，熊猫宝宝大约有15公分长。公分长。2.大象比这个熊猫要重许多倍。大象比这个熊猫要重许多倍。3.我的苹果要比妹妹的多三倍。我的苹果要比妹妹的多三倍。At birth,a baby panda is about 15 cm long.The elephant weighs many times more than this panda.My apples are three times more than my sisters.To preview the article in 2bTo preview the new words and expressions