新滬教牛津版八年級上冊英語 Unit 3 period 4 教學(xué)課件

1、Module 2 Science and technologyUnit 3 putersPeriod 4Period 4 Grammar學(xué)習(xí)目標(biāo)1 學(xué)習(xí)使用形容詞的比較等級比較事物。2 能夠準(zhǔn)確地使用形容詞的比較級和最高級對事物進行比較。3 培養(yǎng)歸納語法規(guī)則的能力和交流過程中的合作精神。 Will puters make our lives better?Revision and introduction plete the article.The first puters were _ than cars, but now they are be ing _ and _. Computers

2、 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 parative of adjectivesWhen we pare two people or things, we

3、 can use the parative of adjectives. betterbetterHow do we form the parative of adjectives?The first puters were _ than cars, but now they are be ing _ 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 pas

4、t, computers were _ expensive, but now they are much _. cheaperclevererfastersmallerbiggermorebetterbetter-ermorethanthe parative of adjectives 比較級形式例詞單音節(jié)形容詞大多數(shù)單音節(jié)形容詞+ -erhigh higher small smaller 以-e結(jié)尾+ -rlarge larger wide wider一個元音 + 一個輔音雙寫輔音字母，再加-erbig bigger hot hotter雙音節(jié)形容詞以-y或-ly結(jié)尾去掉y，再加-ierha

5、ppy happiersilly sillier以非重讀元音、/l/或/R(r)/結(jié)尾+ -er(-r)clever cleverersimple simpler以-ful，-less，-ed，-ing結(jié)尾more + 形容詞原級careful more careful boring more boring多音節(jié)形容詞含三個或三個以上音節(jié)more + 形容詞原級difficult more difficultpopular more popularmore expensivelighter plete the conversation below and on page 40 with the

6、 parative 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)CanadaChinaHong KongShanghaithe Yellow

7、 Riverthe Yangtze RiverHainan IslandTaiwan IslandMountain TaiYellow Mountain(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 b

8、een done for you.The red laptop is the smallest among/of the three.When we pare more than two people or things, we use the superlative of adjectives. Grammar B The superlative of adjectives￥6,000￥4,600￥7,500The red laptop is the smallest among/of the three,but it is _. the most expensive How do we f

9、orm the superlative of adjectives?-estmostthethe superlative of adjectives最高級形式例詞單音節(jié)形容詞大多數(shù)單音節(jié)形容詞+ -esthigh highest small smallest以-e結(jié)尾+ -stlarge largest wide widest一個元音 + 一個輔音雙寫輔音字母，再加-estbig biggest hot hottest雙音節(jié)形容詞以-y或-ly結(jié)尾去掉y，再加-iesthappy happiest silly silliest以非重讀元音、/l/或/R(r)/結(jié)尾+ -est(-st)clev

10、er cleverest simple simplest以-ful，-less，-ed，-ing結(jié)尾most + 形容詞原級careful most careful boring most boring多音節(jié)形容詞含三個或三個以上音節(jié)most + 形容詞原級difficult most difficultpopular most popularDavid: Id like to see some of your cameras.Salesman: Certainly. This is the most expensive model. This is the cheapest model. T

11、his is the newest and lightest model. abcB1 David is shopping for a camera. Look at the photos and write the letter of the correct model after each statement.(1)_(2)_(3)_Tony: Did they show you any cameras?David: Yes. The (1)_model is (2)_. The (3)_model costs (4)_. The (5)_model was made in (6)_. T

12、he (7)_model weighs (8)_.expensive light old smallsmallest99.8 mm x 56.4 mm x 24.5 mmmost expensiveoldestlightest3,5892010170 gB2 David told his friend Tony about his shopping trip. plete Davids sentences with the superlative of the adjectives from the box.S1: Which is the biggest, the Earth, the Mo

13、on or the Sun?S2: The Sun is the biggest.the Earth, the Moon or the Sun? (big) a bee, a butterfly or an ant? (small) iron, silver or gold? (valuable) a bear, a whale or an elephant? (heavy) a spaceship, a plane or a train? (fast) Ask and answer questions using the following information. The first one has been done for you.Homework 熟記形容詞的比較級和最高級的構(gòu)成方式。 以下各組事物中，你最