Module2 Science and technology Unit 3 Computers Grammar课件34张

课件34张PPT。八年级英语上册（上教版）Module 2 Unit 3 Computers！GrammarGUESStall猜一猜GUESSlongGUESSredGUESSwoodena _____ applea smaller /bigger /redder ......applea/an _____ cata/an _____ girlBush/Obama is ... Bush/Obama has ... BushObama Complete the article.The first computers were _____ than cars, but now they are becoming _____ and _____. Computers can calculate at a _____ speed than we can. Computers are not _____ than human beings, but they may be able to do a _____ job than us. In the past, computers were _____ expensive, but now they are much _____. cheaperclevererfastersmallerbiggermore Grammar A The comparative of adjectives2When we compare two people or things, we can use the comparative of adjectives. betterbetterHow do we form the comparative of adjectives?-ermorethanThe first computers were _____ than cars, but now they are becoming _____ and _____. Computers can calculate at a _____ speed than we can. Computers are not _____ than human beings, but they may be able to do a _____ job than us. In the past, computers were _____ expensive, but now they are much _____. cheaperclevererfastersmallerbiggermorebetterbetterThe sheep becomes bigger. The girl looks …… than before. 1.The prettier girl is my sister. 2. Elephant is bigger than other animals on land. 3. He looks nicer today. 4. We should keep our classroom cleaner today. 5. – How was your weekend ? --It was more wonderful . I had much fun. 发现王国形容词的比较级和最高级构成： a.单音节词在词尾加-er(比较级)或-est(最高级)以字母e接尾的词加-r或-st. 如例句_____ 。 b.以重读闭音节结尾的词末尾只有一个辅音字母应双写辅音字母再加er或est 如例句_____。 c.以辅音字母+y结尾的词变为i再加-er,或-est 如例句_____ 。 d .多音节词和多数双音节词在其前面加more 和most 如例句_____ 。 e.比较级的句型：A+be _____ ____ +B Let’s discuss!3和4215形比较级thanmore expensivelighterComplete the conversation below and on page 40 with the comparative of the adjectives from the box.heaviersmallerbigger S1: _____, Canada or China? (country/big) S2: _____.Which country is biggerCanada is bigger than ChinaAsk and answer questions using the following information. The first one has been done for you.(country/big)Canada China (city/big) (river/long) (island/large) (mountain/high)S1: _____,Cananda or China? (country/big) S2: _____.Which country is biggerCanada is bigger than ChinaAsk and answer questions using the following information. The first one has been done for you.She is one of the most popular models in the world.She is the most expensive (of all the models) in the world. Asia is the largest continent in the worldOceania is the smallest continent in the world.The red laptop is the smallest among/of the three.When we compare more than two people or things, we use the superlative of adjectives. Grammar B The superlative of adjectives3The red laptop is the smallest among/of the three, but it is _____. the most expensive How do we form the superlative of adjectives?-estmosttheDavid: I’d like to see some of your cameras. ... ...