第3课时Grammar
预习目标
1．根据单词表，预习课本第11～12页的单词，能根据音标正确拼读这些单词。
2．通过预习初步了解形容词比较级和最高级的用法和构成方法。
预学热身
◆通过预习，了解本课时的单词、短语、句型（英汉互译）。
1.worse.adj._______ 2.worst adj. _______
3.height n. _______ 4.weight n. _______
5．sec. abbr．(＝second) _______ 6．competition n._______
7．_______n.测试，考查 8. _______n.游泳者
9.______________比……更有趣 10.______________最贵的电脑
11.______________最慢的游泳者
12. Simon is taller than Sandy._________________________________________________
13. Peter is the heaviest of the six students._______________________________________
◆自主探究，请带着下面这些问题阅读教材。
1．你能写出下列形容词的比较级和最高级吗？
①important ②slim ③pretty ④nice ⑤bad
2．形容词最高级前应和什么单词连用？
教材导读
1．height n.高，高度
探究点：height的形容词和副词形式是什么？
[指点迷津] height的形容词和副词形式都是high。
His daughter's height is about 1.5 metres.
他的女儿约为1.5米高。
It is the highest mountain here.
它是这儿最高的山。
He jumps higher than I．
他只有一米高，但却能跳得很高。根据汉语提示完成句子
His_______ is one metre9 but he can jump very_______．
2. weight n.重量
探究点：weight的动词形式是什么？
[指点迷津] weight的动词形式是weigh。
用weigh的适当形式填空
①- What is your_______?
- It's about 55 kilograms.
②The stone_______ two tons.
3．swimmer n．游泳者
探究点：swimmer的动词形式是什么？
[指点迷津] swimmer的动词形式是swim。
用所给动词的适当形式填空
The_______ (swim) comes from the USA.
4．Comparative and superlative adjectives形容词的比较级和最高级
探究点一：什么时候用形容词的比较级和最高级？如何构成？
[指点迷津](1)大多数形容词有三个等级：①原级，即原形；②比较级，表示“较……”或“更……一些”的意思；③最高级，表示“最……”的意思。
(2)形容词比较级和最高级的构成方式见下表：
写出下列形容词的比较级和最高级
①important_______ _______ ②hot_______ _______
③busy_______ _______ ④popular_______ _______
⑤sad_______ _______ ⑥fine_______ _______
⑦exciting_______ _______ ⑧thin_______ _______
探究点二：形容词的比较级和最高级有何用法？
[指点迷津] 在没有作任?比较时，用形容词原级；将两个人或事物进行比较时用形容词的比较级＋than;将两个以上的人或事物进行比较时用the＋形容词的最高级＋比较范围。
He is very tall.
他很高。(没有作任何比较用形容词原级tall)
He is taller than I．
他比我高。(两者进行比较时用形容词的比较级taller＋than)
He is the tallest of us three.
他是我们三个人中最高的。（两者以上进行比较时用形容词的最高级the tallest＋比较范围）
用所给单词的适当形式填空
⑨My room is_______(big).
⑩My brother is_______ (strong) than me.
(11)This pair of trousers is_______(expensive) in the shop.
热身练习
A．根据句意、首字母或汉语提示完成句子。
1．Tom is the fastest of all the_______（游泳者）．
2．-I feel even w_______ now.
- You should go to see the doctor.
3. His daughter is about l.3 metres in h_______.
4. I'm preparing for the coming English t_______.
5. - What's your son's w_______?
- It's 50 kilograms.
B．用所给单词的适当形式填空。
1. Sandy is_______ (thin) than any other girl in her class.
2. Millie is a_______ girl. She always does her homework_______.(careful)
3. Mary is_______ (friend) student in our class.
4. My mother is always_______ than others. She is_______ in my family. (busy)
5. What makes you_______ (happy) today than yesterday?
6. Take more exercise, then you'll be_______ (health) than before.
C．单项选择。
( )1. Liuzhou is_______ than Shanghai.
A. small B. smaller C. smallest
( )2. Of all the flowers, I think rose is_______.
A. beautiful B. too beautiful
C. more beautiful D. the most beautiful
( )3. The population problem may be _______one of the world today.
A. the most B. most difficult
C. the greatest D. more interesting
( )4. She sang a song I believe I can_______ fly in Yangzhou English Classics Reading Contest. I have never heard a_______ voice than that before.
A. good B. well C. better D. best
( )5. -I think Science is more interesting than Art.
-I disagree. I think Art is_______ Science,
A. interestinger than B. the interesting than
C. interestingest than D. more interesting than
( )6. - Whose home is_______ away from school in our class?
- Liu Mei's.
A. farther B. far C. the farthest D. near
( )7. The weather in Guiyang in summer is_______ than that in Tongren. They're different.
A. cool B. cooler C. hot D. hotter
( )8. To live a green life, we should try to save______ energy and produce_______ pollution
A. more; less B. less; more
C. more; fewer D. most; least
D．根据汉语提示完成句子。
1．我想选择吴东做我的朋友。
I want ______________my friend.
2．刘翔是世界上最受欢迎的体育明星之一。
Liu Xiang is_____________________ sports stars in the world.
3．你叔叔比你爸爸胖吗？
_______ your uncle______________ your father?
参考答案
预学热身
◆1．(bad的比较级)更差，更糟，更坏 2．(bad的最高级)最差，最糟，最坏 3．高，高度4．重量 5．秒 6．竞赛，比赛；竞争 7．test 8．Swimmer 9. more interesting than… 10. the most expensive computer(s) 11. the slowest swimmer 12.西蒙比桑迪高。 13.彼得是六个学生中最重的。
◆ 1. ① more important; most important ②slimmer; slimmest ③prettier; prettiest ④nicer; nicest⑤worse; worst 2．形容词最高级前应和the或形容词性物主代词连用。
教材导读
1.①height; high 2.①weight ②weighs 3. swimmer 4.①more important; most important②hotter; hottest ③busier; busiest ④mort popular; most popular ⑤ sadder; saddest ⑥finer; finest ⑦more exciting; most exciting ⑧thinner; thinnest ⑨big ⑩stronger (11)the most expensive
热身练习
A. 1. swimmers 2.worse 3.height 4.test 5．Weight
B. 1. thinner 2. careful; carefully 3. the most friendly 4. busier; the busiest
5. happier 6．healthier
C．1~5. BDCCD 6~8. CBA
D. 1. to choose Wu Dong as 2.one of the most popular 3. Is; fatter than