Grammar1and2.ppt

1、外研版 高一年级 (必修1) Module 5,Read these questions aloud and say the answers.,What is 1 / 2 of 6,000,000? 2. How much is 35,246,000 plus 12,800,000? 3. What is 25% of 200,000,000?,3,000,000,48,046,000,50,000,000,4. How much is 260,408,396 and 5,284,700? 5. What is of 1,000,500,000? 6. What is 10% of 800,0

2、00,000?,750,375,000,265,693,096,80,000,000,degrees of comparison,A+倍数+形容词或副词的比较级+ than + B,A+倍数+the size/height/length/width,+ of + B,Review, A+倍数+ as +形容词或副词的原级+as +B,The earth is forty-nine times the size of the moon.,The earth is forty-nine times as large as the moon.,The earth is forty-nine time

3、s larger than the moon.,地球是月球的49倍大。,2.Make sentences about the comparative sizes of the pairs. Use the words in the brackets.,1.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 abo

4、ut three times the length of the Songhua River.,3. A: Mount Qomolangma is about six times as high as Mount Tai .,B: Mount Qomolangma is about six times higher than Mount Tai .,C: Mount Qomolangma is about six times the height of Mount Tai .,4.A: My aunts house is twice as large as my house.,B: My au

5、nts house is twice larger than my house.,C: My aunts house is twice the size of my house.,5.A: Tom weighs over twice as heavy as Lily.,B: Tom is over twice heavier than Lily.,C: Tom is over twice the weight of Lily.,2.A: Harbins winter is four times as cold as that of Beijing.,C: Harbins winter is f

6、our times the coldness of that of Beijing.,B: Harbins winter is four times colder than that of Beijing.,2.A: Winter is four times as cold in Harbin as in Beijing.,B: Winter is four times colder in Harbin than in Beijing.,C: Winter in Harbin is four times the coldness of that in Beijing.,1. Ten years

7、 ago the population of our village was _ that of theirs. (陕西2008) A. as twice large as B. twice as large as C. twice as much as D. as twice much as,【高考题展示】,2. At a rough estimate, Nigeria is _ Great Britain. (上海2005) A. three times the size as B. the size three times of C. three times as the size of

8、 D. three times the size of,e.g. Dick is as tall as his brother. The book is as new as that one. She is as pretty as her mother.,原级比较：两者程度相同。用句型as+形容词/副词+as表示, 否定名式为: not as/so+形容词/副词as,表示“不如，不一样”的含义。,The question is not as / so difficult as that one. My bike is not as / so good as yours.,表示A超过B。此时用

9、形容词和副词的比较级+than。,e.g. Our classroom is brighter than yours. Dogs run faster than rabbits. I dont think math is more important than physics.,表示A不如B。 句型：less+形容词 /副词原级。,e.g. Rabbits ran less fast than dogs. Jenny is less clever than her sister. It rains less often here in autumn than in spring.,New le

10、sson,When winter comes, the weather gets _(越来越冷了）,colder and colder,Finish the sentences using proper words and the structure,bright dark weak fat 1.when the sun rises, it is getting_ 2.when the sun sets, it is getting_ 3.After suffering a serious disease, he is getting_ 4.she likes eating sweet, an

11、d these days she is getting_,brighter and brighter,darker and darker,fatter and fatter,weaker and weaker,结论,要表达越来越 1)比较级+and +比较级(colder and colder) 2)思考？她变得越来越漂亮了！ She becomes more and more beautiful More and more +多音节形容词,“the + 比较级, the + 比较级结构” 表示 “越，就越“的意思。 妈妈越忙就越开心。 The busier my mum gets, the

12、happier she is.,一方随着另一方的变化而变化？,思考：你读的书越多，你获得的知识就越多如何表达？,The more books you read, the more knowledge you will get.,注意： 有时前一个the+比较级相当于条件状语从句，后一个the+比较级为主句，从句不可用将来时态。 e.g. 1)The harder you work at your lessons, the better you will do in them. 2)The more careful you are, the fewer mistakes you will mak

13、e in the experiment.,1. _ (healthy) people are, _ (long) they will live. 2. I found it _ difficult to solve the problem. 3. _ (hard-working) you are, _(good) you will study.,The healthier,the longer,more and more,The more hard-working,the better,Exercises 1,Exercises 2,I have become _and _in playing

14、 football. A .much, much interesting B. more ,more interested C. more, more interesting D. much, more interested,2.The _you work, the _points youll get in the exams . A. few/little B. fewer/fewer C. Less/fewer D. less/less,3 .The harder you work, _. A. the greater progress youll make B. the greater

15、youll make progress C. youll make the greater progress D . youll make greater progress,在形容词比较级前可以用一些副词来修饰： (1): a little, a bit，slightly, a little bit, some： 一点儿 (2): (very) much, a lot, a great deal, far, by far(放在比较级后),rather：得多，远比 (3): any（多用于疑问句，否定句）, even(更加）, still(还，还要), 等,e.g. The moon is mu

16、ch smaller than the earth. The result of the experiment turned out to be even better than expected. Speak a bit more slowly, please.,Underline the correct expression,1.This metal is more/a bit heavier than steel. 2.Lead is a lot/lot heavier than steel. 3.It is a little /lots of longer than before. 4

17、.Is it much/any heavier?,_,_,_,_,Exercises,1. You are standing too near the camera. Can you move _? A. a bit far B. a little farther C. a bit of farther D. a little far,2.You are driving too fast. can you drive _? A. more slowly a bit B. slowly a bit more C. a bit more slowly D. slowly more a bit,注意

18、,1.The new building is higher than the old one.,Those apples are bigger than these ones.,2.His shirt is more expensive than mine.,如果主语是物主代词+名词，那么后面要用 名词性物主代词。,比较级必须在同类中进行，即人与人比， 物与物比，而且比较结构前后的词语要对称， 特别注意在than或 as 之后不要漏掉可能出现 的替代词 that，those, one ,ones.,3. Mary is the tallest of all the students in our class .,在使用形容词最高