新概念英语第一册第20课【课文讲解】

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替换练习:

(1)Look at his shoes. They are clean.
(2) Look at her hands. They are dirty.
(3)Look at the postmen. They are hot.
(4)Look at the women. They are cold.
(5)Look at the men. They are fat.
(6)Look at the hairdressers. They are thin.
(7)Look at the shoes. They are big.
(8)Look at the shoes. They are small.
(9)Look at the doors. They are open.
(10)Look at the doors. They are shut.
(11)Look at the cases. They are light.
(12)Look at the cases. They are heavy.
(13)Look at grandfather and grandmother. They are old.
(14)Look at the children. They are young.
(15)Look at the hats. They are old.
(16)Look at the hats. They are new.
(17)Look at the boy and the girl. They are short.
(18)Look at the policemen. They are tall.
(19)Look at the trousers. They are short.
(20)Look at the trousers. They are long.