剑桥少儿英语二级A_Unit9(共24页).

as tall as a tree意为“如同树一样高。”本短 语结构中as…as…意为“和……一样”，表示同级 的比较。使用时要注意第一个as为副词，第二个as 为连词。其基本结构为：as+adj. /adv. +as。 e.g.As good as new. As soon as possible. 若有修饰成分，如twice，three times，half，a quarter等，则须置于第一个as之前。 e.g.Your bag is twice as big as mine.



C： （1）Which distance is shorter, from Hangzhou to Beijing or from Daqing to Beijing? （2）It’s shorter from Daqing to Beijing than from Hangzhou to Beijing. （3）Because it’s 1570km from Daqing to Beijing.
3．Ask and answer in pairs.
e.g.A： （1）Which distance is shorter, from Baoding to Beijing or from Tianjin to Beijing? （2）It’s shorter from Tianjin to Beijing than from Baoding to Beijing. （3）Because it’s 137km from Tianjin to Beijing.


D： （1）Which distance is shorter, from Qingdao to Beijing or from Baotou to Beijing? （2）It’s shorter from Baotou to Beijing than from Qingdao to Beijing. （3）Because it’s 832km from Baotou to Beijing.
9．Look, guess and say.
答案：They are the same.
答案：They are the same.
答案：They are the same.
答案：They are the same.



F： （1）Which distance is shorter, from Tonghua to Beijing or from Nanjing to Beijing? （2）It’s shorter from Nanjing to Beijing than from Tonghua to Beijing. （3）Because it’s 1160km from Nanjing to Beijing.

E： （1）Which distance is shorter, from Qinhuangdao to Beijing or from Shanhaiguan to Beijing? （2）It’s shorter from Qinhuagdao to Beijing than from Shanhaiguan to Beijing. （3）Because it’s 422km from Qinhuangdao to Beijing.
7．Look, match, write and say.
答案： （1）as red as an apple（2）as happy as a bird（3）as quiet as a mouse. （4）as white as snow（5）as cold as ice（6）as big as an elephant （7）as black as chocolate （8）as green as grass（9）as small as pea


4．Read, think and write. Who is who?
答案：从左到右Paul，Fred，Peter，Jim，John
5．Look and say.

Use the following words to talk about your classmates.
e.g.Jane is taller than Ann, but Tina is taller than Jane. Fred is stronger than Sam, but weaker than John. Can you make more sentences?
6．Read, think and do.


A is twice as old as B. 意为“A的年纪是B的两倍。” e.g.I am twice as old as he. A is half as old again as B. 意为“A的年纪比B大半 倍。” e.g.The husband is half as old again as his wife.


G： （1）Which distance is shorter, from Dezhou to Beijing or from Datong to Beijing? （2）It’s shorter from Dezhou to Beijing than from Datong to Beijing. （3）Because it’s 376km from Dezhou to Beijing.
B： （1）Which distance is shorter, from Yantai to Beijing or from Dandong to Beijing? （2）It’s shorter from Yantai to Beijing than from Dandong to Beijing. （3）Because it’s 1021km from Yantai to Beijing.
二、单元学习
1．Listen, look and talk. （1）New words and expressions.





Key sentences: Sally is taller than Ben. 莎莉比苯高。 152km=one hundred and fifty-two kilometers. 1169km=one thousand one hundred and sixtynine kilometres. 438km=four hundred and thirty-eight kilometres. 1021km=one thousand and twenty-one kilometres.
H： （1）Which distance is shorter, from Changsha to Beijing or from Mudanjiang to Beijing? （2）It’s shorter from Changsha to Beijing than from Mudanjiang to Beijing. （3）Because it 1593km from Changsha to Beijing.