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en child—childrenfoot feet toothteeth(2) 其他形式:mousemice child – children 口訣:男孩女孩們的腳踩住老鼠的牙.4. 、woman變復(fù)數(shù)時(shí),構(gòu)成復(fù)合名詞的兩個(gè)名詞全都要變成復(fù)數(shù)形式,如果時(shí)其他詞,變復(fù)數(shù)時(shí)只需要把后面的名詞變成復(fù)數(shù)形式。man teacher men teacherswoman teacherwomen teachersboy student boy students 課堂練習(xí)/課后練習(xí)一、用括號中所給單詞的正確形式填空。 are many _____(picture) on the wall.2. We are new _______ (student) in Yucai Middle school.3. These _______(key) are on the table.4. I like eating_________(tomato).6. Those _______(leaf) are yellow. are many_________ (piano) in the room. 二.把下列可數(shù)名詞變成其相應(yīng)的復(fù)數(shù)形式。 2. day _____ 3. pencil ___ _ 4. book _____5. bus ______ 6. box ______ 7. watch ______ ______9. baby ______ 10. family______ 11. key ______ ______ 13. wife ______ 14. knife ______ 15. half ______ 16. shelf ______ ______ ______ 19. roof(屋頂)