Unit 3 第4课时 Grammar（同步课件）-八年级英语上册同步精品课堂（牛津译林版）

Unit 3 A day out Grammar How is Peter like ? Is he good at sports ? His future plan is to become a doctor ,right ? Lead in To learn to use as…as & not as…as To learn to use reflexive pronouns To learn the new words and expressions: itself, pull, rock, luckily, climber, keep secret to oneself Objectives itself pull rock luckily climber pron. 它自己 vt. & vi. 拉；拖；移开 n. 岩石 adv. 幸好，幸运的是 n. 登山者，攀爬者 Words review How is Peter like ? Is he good at sports ? His future plan is to become a doctor ,right ? Lead in Task 1 Linda Nancy Kate Linda is tall. Nancy is as tall as Linda. Kate is not as tall as Linda. =Kate is shorter than Linda. Part Four Learning for use (3min) T: We have learned how to use comparatives to compare two people or things. Now I’ll add another girl – Kate to them. How can we compare these three girls now? （我们已经学习了如何用形容词的比较级来比较两个人或事物。现在我再在她们当中加上另一名女孩Kate，那么我们现在如何来比较这三名女孩呢？） T: We can say ‘Linda is the tallest girl of the three.’（Linda是三个女孩中最高的。） / ‘Kate is the shortest girl of the three.’（Kate是三个女孩当中最矮的。） ￥ 1000.00 ￥ 1000.00 ￥ 500.00 The purple bag is _____________ the green bag. The green bag is expensive. as expensive as The white bag is ________________ the green bag. not as expensive as =The white bag is ____________ the green bag. cheaper than T: In the same way, let me add another bag to the two bags. How can we compare their price now? （同样，我在这两个包旁边再加上一个包。那么现在我们如何来比较它们的价格呢？） S: The green bag is …. T: Well, many students have found that we should add ‘-est’ to the adjective and use ‘the’ before it when we compare three things. （好，很多同学已经发现我们在表示三个事物的比较时，应该在形容词后面加上 ‘-est’并在其前使用定冠词the。) T: So we can say ‘The green bag is the cheapest one of all the bags.’ （所以我们可以说绿色的包是所有包中最便宜的。) T: But how can we talk about the purple one? Can we add ‘-est’ to ‘expensive’ too? （但是我们如何来谈论紫色的包的价格呢？我们也能在expensive’后面加上 ‘-est’吗？） Ss: No. We should …. T: OK. We know that ‘cheap’ is a short adjective while ‘expensive’ is a long adjective. （很好！我们知道cheap是一个短形容词，而expensive是