课件16张PPT。第四课时Unit 1 How tall are you?Free talkHow old are you?
I’m _____ years old.
How tall are you?
I’m _____ metres tall.
How heavy are you?
I’m _____ kg.
What size are your shoes?
Size _____.thinnerheavierPresentationfatfattersmallerbiggerthinnerstrongerfunnyfunnierThe first boy is funny. The second boy is funnier.
原型 比较级tall tallershortshorterlong longer youngyoungeroldoldersmallsmallerstrongstrongerbigbiggerthinthinnerheavyheavierSummary总结归纳1)形容词+er
long→longer, strong →stronger, fast →faster
2)以不发音e结尾的+r
large →larger, nice →nicer, safe →safer
3)以一个辅音字母结尾的重读闭音节,双写末尾辅音字母,再 加+er
fat →fatter, thin →thinner, big →bigger
4) 以辅音字母加y结尾,变y为i + er
happy →happier, busy →busier, early →earlier,
funny →funnier , heavy →heavier
5) 不规则变化
good/well →bettertalltallerthinthinnerheavyheavier自主探究:你能发现形容词比较级的构成规律吗?nicenicerHeavy, heavier, the elephant is heavier.
Thin, thinner, the dog is thinner.
Small, smaller, the rabbit is smaller.
Big, bigger, the horse is bigger.
Long, longer, the train is longer.Let's chantGroup work选词填空。
1.—How old are you?
—I’m 13 years . (A. old B. older)
2.—How are you? (A. heavy B. heavier)
—I’m 45 kg.
3. My fish is bigger than . (A. Sarah’s B. Sarah)
4. heavier than your brother? (A. Whose B. Who’s)
5. — are your shoes? (A. What colour B. What size)
—I wear size 36 shoes.
Summary Words & phrases:
thinner
heavier
bigger
smaller
stronger
Homework 1. 完成《作业本》的练习。
2. . 与同伴一起用学过的比较级单词造句。