Module 5 A Lesson in a Lab grammar倍数的表达课件

课件31张PPT。Module 5
A lesson in a labGrammar 1Discuss in groups of three. Make sentences about the comparative sizes of the pairs. Use the words in the brackets .Winter in HarbinWinter in Beijing-20℃-5℃（cold/coldness）Mount Tai Mount Qumolangma1521m8848m(high/height)Diameter (直径）
Earth=1 Jupiter=11(big/size)Example:A: The Yangtze River is about three times as long as the Songhua River.B: The Yangtze River is about three times longer than the Songhua River.C: The Yangtze River is about three times the length of the Songhua River.Mount Tai Mount Qumolangma1521m8848m(high/height)A:Mount Qumolangma is about six times as high as Mount Tai.B:Mount Qumolangma is about six times higher than Mount Tai.C:Mount Qumolangma is about six times the height of Mount Tai.Winter in HarbinWinter in Beijing-20℃-5℃（cold/coldness）A:Winter in Harbin is four times as cold as in Beijing.B:Winter in Harbin is four times colder than in Beijing.C: Winter in Harbin is four times the coldness of
winter in Beijing.1.Practice(6m)Mars is __________________ the earth. (big)
Jupiter is _________________from the sun than the earth. (far)half as big asfive times furtherCan you write more sentences comparing the planets?Diameter直径
Earth=1 Jupiter=11(big/size)A:Jupiter is eleven times as big as the earth .B:Jupiter is eleven times bigger than the earth.C:Jupiter is eleven times the size of the earth.2.Rules(6m) First study the sentences and make a conclusion of the comparative structure of adjectives.The brown house’s windows are twice as wide as those of the white house.
My handwriting is not half as good as yours.
This room is three times as large as that one.
小结: (1) A is five times as large as B.
The white box is four times deeper than the black box.
This road is twice longer than that one.
The plane flew nine times higher than the kite.
小结: (2) A is five times as large as B.
The red building is twice the height of the grey building.
Our school is three times the size of yours.
The street is four times the length of that one.小结: (3)
A is five times the size/ length/ height /width /depth of B. Grammar1 – 4.Practice(10m) Make sentences about the comparative size of the pairs in Part 2 on Page 43.Answers:2. Winter is four times colder in Harbin than in Beijing.
Winter is four times as cold in Harbin as in Beijing.
3. Mount Qumolangma is about six times higher than Mount Tai.
Mount Qumolangma is about six times as high as Mount Tai.
4. My aunt’s house is twice as large as my house.
My aunt’s house is twice larger than my house
5. Tom weighs over twice as heavy as Lily.
Tom is over twice heavier than Lily.
The old woman is about ________as old as her granddaughter.Or we can say:The old woman is about ____________ older than her granddaughter.The old woman is about ten times the age of her granddaughter.ten timesten times②倍数+形容词比较级+than …③倍数+the (size, height, length, weight, width, depth, age) +of …Conclusion:Grammar 21.It’s becoming bigger and bigger.2.She is more and more beautiful.3.The higher it flies,the smaller it appears.A:Which of these structures is used to say that something is changing?B: Which of these structures is used to say that things change/are changing together?C:Which structures repeat the same adjectives/adverbs?Sentence 1.2.3Sentence 3Sentence 1.21.It’s becoming bigger and bigger.
2.She is more and more beautiful
3.The higher it flies,the smaller it appears.Answer the questions:Pair work: Look at the passage and conclude the sentences structure. In the National Day holidays, I went back to my hometown to see my uncle. He was very happy to see me and said I was growing ______________ .(tall)I was surprised to see that my hometown was getting ___________________(beautiful) and the farmers were ______________.(rich) Seeing my amazed look ,Uncle smiled and said ,“The more money you make , _______you spend.”(much)After lunch , I decided to return. Uncle asked me to work hard. He said , “The harder you work at your lessons, _______you will do in them.” taller and tallermore and more beautifulricher and richerthe morethe bettermore and more+多音节形容词和部分双音节形容词
eg .more and more beautiful单音节或部分双音节形容词/副词的比较级+单音节或部分双音节形容词/副词的比较级
eg.taller and taller1).“越来越……”2).“越……,越……”The +形容词/副词的比较级+主+谓, the +形容词/副词的比较级+主+谓ConclusionComplete the sentences with the words in the box in suitable comparative forms.warm healthy/long more/more more/less big Example: Air pollution is getting worse and worse.1. people are, they will live.
2. we recycle, we waste.
3.The planet is getting .
4.According to scientists, the universe is getting a .
5. you practise, fluently you will speak.
6.I found it difficult to solve the problem.The healthierthe longer The morethe lesswarmer and warmerThe morethe moremore and moreA little tallerMuch tallerPair work:Look at these sentences.Underline the comparative expressions and circle the adverbs used to modify the comparative expressions. 1.Come a bit closer.2.We need rather more than that.3.It weighs a little more than before.4.It’ll be a lot heavier than magnesium.5.Is it any heavier?6.We need a piece which is (very) much bigger than that. a bit rathera littlea lotany(very) much程度副词+形容词或副词的比较级.Conclusion:Pair work:Fill in the blanks, using much, a little, a lot, a bit, any…A).Tom has been ill for several days. Is he getting better?anyB).Native speakers speak English faster than I do.muchC).I weigh heavier than my cousin, but he is stronger than I am. a bita lotGroup work:add some words to make complete sentences ,using degrees of comparison.1.this room/three times/large/that one
2.winter/come/get/cold
3.this book/a lot/interesting/that one
4.the girl/become/beautiful
5.the busy/mum get/the happy/she is.1.this room/three times/large/that one
1.This room is three times as large as that one
Or:
Or:
2.winter/come/get/cold
2.
3.this book/a lot/interesting/that one
3.
4.the girl/become/beautiful
4.
5.the busy/mum get/the happy/she is
5This room is three times larger than that oneThis room is three times the size of that one Winter is coming,it’s getting colder and colderThis book is a lot more interesting than that one
The girl is becoming more and more beautifulthe busier my mum gets,the happier she is.一、Structures of comparison structures ( 形容词或副词各级别句式) 1.1) as + adj./ adv. + as.
2) as + adj. + a + n. + as
3) as + many / much + n. + as
2. not as/so + adj./ adv. +as
3. the -er form + than
4. the + -est form 二、Times structures倍数句型 1. A is five times larger than B.
2. A is five times as large as B.
3. A is five times the size/ length/ height /width /depth of B. 三、Some other structures 其他句型1. -er form + and + -er form
2. the + -er form, the + -er form, 1.PAGE47 Grammar 2:Activity2Homework2.PAGE91 Grammar:Activity1,2See you!