2019_2020学年高中英语Module5ALessoninaLabSectionⅢGrammar——比较等级教案（含解析）外研版.docx

Section Grammar比较等级语 境 自 主 领 悟先观察原句后自主感悟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 the length of the wood one.6.Its getting brighter and brighter！7.The closer you are, the more youll see.1.例句为同级比较，其结构为：as形容词原形as。2.例句为比较等级，其结构为：比较级than.。3.例句为倍数表达法，其结构分别是：(1)倍数as形容词原形as; (2)倍数形容词比较级than; (3)倍数the名词of.4.例句是比较级的特殊句式：其中例句的结构是“比较级and比较级”；例句的结构是“the比较级， the 比较级”。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：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 Beijing.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 feeling any better today? 你今天感觉好些了吗？即时演练1单句语法填空Do you mind if we stay a bit longer (long)today?It is even colder (cold)today.But it doesnt mean they can do it_any better than the rest of us.A bike runs much more_slowly(slowly) than a motorbike.二、比较级的特殊结构1the比较级(主语谓语), 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 of 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.这本书不如那本书有趣。即时演练2单句语法填空He has never spent a more worrying day.More(many) and more foreigners have been to the Great Wall.The harder(hard) he worked, the more he got.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 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 heavier(heavy) than the worlds production of vehicles.My uncles house in the downtown area is much smaller than ours, but its twice as expensive.This room is twice the length (long) of that one, but it is much narrower.单句语法填空1As spring is coming, the day is becoming longer and longer(long)2The warmer the weather is, the better (well) the crops will grow.3The number of people present at the concert was much smaller(small) than expected.There were many tickets left.4The more powerful(power) the car is, the more difficult it is to handle.5The Tower of London is three times the height (high) of the church tower.6Britain is the larger (large) of the two islands, and it is divided into three parts.7There are three times as many girls as boys in our class.8Are you pleased with his performance? Well done! It