Unit 3

Grammar I

strong

Tom Betty Amy

thin

Can you make up sentences to compare( 比较） them? …-er than…

…the –est …

This cat is as lazy as that one.

This tree is __________that one.as big as

Conclusion 1:

A + be + Bas adjective as +

A 与 B 一样……

原级

1. 这本书和那本书一样有趣。This book is as interesting as that one.

2. 游泳和滑雪一样危险。Swimming is as dangerous as skiing.

3. 他和我一样细心。He is as careful as I (am).

4. 他听得和我一样认真。He listens as carefully as I.

Exercises:

100kg 500kg

This box is not as heavy as that one. so

This tree is ______________ that one.

not as big asso

Conclusion 2:

A + be + Bnot as adjective as+

A 不如 / 没有 B……

原级so

1. I am strong. He is stronger.

I am not as/so strong as he.2.Swimming is interesting. Climbing is more interesting.Swimming is not as / so interesting

as climbing.3.He listens as carefully as I. （否定）

He doesn’t listen as carefully as I.

delicious big healthycheap expensive …

同级比较 / 比较级的转换：

e.g.1) is not as healthy as . = The milk is healthier than the Coke . 2) The mooncake is not as big as the hamburger. = The mooncake is smaller than the hamburger. = The hamburger is bigger than the mooncake. 3) The banana isn’t as delicious as the watermelon. =The watermelon is more delicious than the banana . = The banana is less delicious than the watermelon.

多音节形容词的比较等级 比较级 : more +adj +than 比…更… less +adj +than 不如，没有… 最高级 : the most +adj 最… the least +adj 　 最不…The watermelon is more delicious than the banana . =The banana is less delicious than the watermelon

I think the pizza is the most delicious . Maybe candy is the least delicious.

Are the following sentences right/wrong?

1.You can swim so well as Tom.

Fcan’t

2. That story is the most exciting than this one.F

more/less

3. The Coke is less delicious than juice. T

4. I don’t like that movie because it is less interesting of the three . Fthe least

as

Which would you like to talk about?Model ：

A: Do you like the monkey or the goldfish?

B: I like both. I think the monkey is as lovely as the goldfish.

A: But I think the monkey isn’t as/so…as the goldfish.

B: And what do you think of…?

A: I think it is more / less …than …

B: Yes, it is the most/ least …of them.

Work in pairs and talk about the animals.

heavy , clever , quickly , slow, lovely, helpful, strong, interesting, dangerous…..