1、Section Grammar比较等级Module 5 A Lesson in a Lab语 境 自 主 领 悟先观察原句1.The book is as interesting as that one.2.The physics lesson was a lot more interesting than the chemistry lesson.3.The earth is twice as large as the moon.4.The earth is fortynine times larger than the moon.5.The stone bridge is twice th
2、e length of the wood one.6.Its getting brighter and brighter！7.The closer you are,the more youll see.语 境 自 主 领 悟后自主感悟1.例句 1 为同级比较，其结构为：_。2.例句 2 为比较等级，其结构为：_。3.例句 3、4、5 为倍数表达法，其结构分别是：(1)倍数as_as;(2)倍数_than;(3)倍数the_of.4.例句 6、7 是比较级的特殊句式：其中例句 6 的结构是“_”；例句 7 的结构是“_”。as形容词原形as 比较级than.形容词原形形容词比较级名词比较级and
3、比较级the比较级，the 比较级语 法 精 要 点 拨 一、比较级的基本用法 1同级比较：.as形容词/副词as.“和一样”；否定式为：.not as/so形容词/副词as.“和不一样；不如”Tom runs as fast as Mike.汤姆和迈克跑得一样快。Wealth is not so important as health.财富不如健康重要。名师点津 在此句式中，若形容词原级后面跟单数可数名词，则应注意冠词与形容词的位置关系，即 as形容词a/an单数名词as“和一样”。He is as clever a boy as his brother.他是和哥哥一样聪明的男孩子。2比较级
4、：形容词/副词比较级than.表示“比更”。My computer is more expensive than hers.我的电脑比她的贵。Robert jumps higher than any of the others.罗伯特比其他任何人跳得都高。名师点津 (1)使用比较级时比较的对象应该相同。为了简洁起见，可用that 代替前面出现的不可数名词或可数名词单数，those 代替可数名词复数。正：The weather of Shanghai is warmer than that of Beijing.误：The weather of Shanghai is warmer than B
5、eijing.上海的天气比北京的天气暖和。(2)比较双方如果一方在程度或数量上超过另一方时，可在比较级前加上副词修饰语。常见的有：much,a little,a bit,a lot,far,by far,even,still,rather,any(疑问句、否定句或条件状语从句),a great deal 等。She drives still much more carefully than her husband.她开车比她丈夫认真多了。This movie is far more interesting than I expected.这部电影比我原想的有意思得多。Are you feeli
6、ng any better today?你今天感觉好些了吗？即时演练 1 单句改错(每小题仅有一处错误)Do you mind if we stay a bit of longer today？_ It is even cold today._ But it doesnt mean they can do it some better than the rest of us._ A bike runs much more slowlier than a motorbike._ 删去of coldcolder someany slowlierslowly 二、比较级的特殊结构 1the比较级(主
7、语谓语),the比较级(主语谓语)表示“越，越”The more you study,the more you know.学得越多，懂得越多。2比较级and比较级，表示“越来越”It becomes warmer and warmer when spring comes.春天来了，天气越来越暖和了。My hometown is getting more and more beautiful.我的家乡变得越来越美丽。3the形容词/副词比较级of.表示“两者之中比较的一个”This is the bigger of the two rooms.这是两个房间中较大的一个。The younger o
8、f the two brothers is a teacher.两兄弟中较年轻的那个是一名老师。4“否定词比较级”表示最高级含义 I cant agree with you more.我再同意你不过了。I have never seen a more interesting book.这是我所看过的最有趣的一本书。5no比较级than“和一样不”not 比较级than“不如”This book is no more interesting than that one.这本书和那本书一样没趣。This book is not more interesting than that one.这本书不
9、如那本书有趣。即时演练 2 单句语法填空 He has never spent a _ worrying day._(many)and more foreigners have been to the Great Wall.The _(hard)he worked,the more he got.more More harder 三、倍数表达法 1倍数as形容词或副词的原级as.Asia is about four times as large as Europe.亚洲大约是欧洲的四倍大。2倍数形容词或副词的比较级than.This road is twice longer than that
10、 one.这条路比那条路长两倍。3倍数the性质名词(size,height,depth,length,width)of.This stone tower is twice the height of the wood one.这座石塔是那座木塔的两倍高。4倍数as many/much 名词as.We have produced three times as many computers as we did last year.我们生产的计算机是去年的三倍多。即时演练 3 单句语法填空 Paper produced every year is three times _(heavy)than
11、the worlds production of vehicles.My uncles house in the downtown area is much smaller than ours,but its twice _ expensive.This room is twice the _(long)of that one,but it is much narrower.heavier as length 语 法 应 用 落 实.单句语法填空 1According to a review of evidence in a medical journal,runners live three
12、 years _(long)than nonrunners.2Corn uses less water _ rice and creates less fertilizer(化肥)runoff.3He screams the _(loud)of all.4There could be an even _(high)cost on your health.longer than loudest higher 5Even _(bad),the amount of fast food that people eat goes up.6Sixteen years _(early),Pahlsson h
13、ad removed the diamond ring to cook a meal.7If you feel stressed by responsibilities at work,you should take a step back and identify(识别)those of _(great)and less importance.worse earlier greater 8I have always enjoyed all the events you organized and I hope to attend many _(many)in the coming years
14、.9Finally，that hard work paid off and now the water in the river is _(clean)than ever.10The _(hard)you try to beat him,the more likely you will get hit.more cleaner harder.单句改错(每小题仅有 1 处错误)1Ive worked with him for some time and have found he is more excellent teacher than Mike._ 2Im not satisfied wi
15、th her answer at all.It couldnt have been bad._ 3I like Rose and Mary,but I think Rose is nicer of the two._ more前加a badworse nicer前加the 4The TV set sold in this store is more cheaper than the one sold in that store._ 5The more you practice,and the better result you will get in the exam._ 6I think i
16、ts too expensive.Id like a cheap one._ 7The more difficult the problem is,the much careful you should be._ moremuch或去掉more 去掉and cheapcheaper muchmore 8The restaurant wasnt half as better as that restaurant we went to._ 9Professor Wang has written some short stories,but he is well known for his plays._ 10The weather isnt good enough for an outing,is it?Not at all.We cant have a worst day at this time of the year._ bettergood wellbetter worstworse Thank you for watching!