Unit 7 How do things change？ 单元词汇变形与句型转换（专项训练）-2025-2026学年沪教版英语四年级下册

沪教版四年级下册 Unit 7 How do things change? 词汇变形与句型转换专项训练 一、用所给单词的适当形式填空 1. Ice can ____________ (melt) into water. 2. The sun ____________ (heat) the water every day. 3. Water can ____________ (freeze) in winter. 4. The chocolate ____________ (melt) quickly in the sun. 5. We ____________ (mix) sugar and milk to make sweet food. 6. The steam ____________ (come) from the hot water. 7. There are three states: solid, ____________ (liquid) and gas. 8. I ____________ (put) the ice cream in the freezer. 9. The plastic ____________ (be) hard and cold. 10. The children ____________ (shake) the bottle to mix the juice. 11. The water ____________ (turn) into ice in the fridge. 12. We can ____________ (heat) the water to make it hot. 13. The mixture ____________ (taste) sweet. 14. The door is ____________ (open), so the wind comes in. 15. I want ____________ (make) ice cream with my sister. 16. There is some ____________ (cream) in the bowl. 17. The ____________ (freeze) weather makes the lake turn into ice. 18. She ____________ (add) some salt to the soup. 19. The chocolate ____________ (be) my favourite snack. 20. We ____________ (have) a science lesson about changes today. 二、句型转换 1. Ice can melt into water.（对划线部分提问） ___________ can ice ____________? 2. The sun heats the water every day.（改为一般疑问句） ____________ the sun ____________ the water every day? 3. Water can freeze in winter.（改为否定句） Water ____________ ____________ freeze in winter. 4. I put the ice cream in the freezer.（对划线部分提问） ____________ ____________ you put the ice cream? 5. We mix sugar and milk to make sweet food.（改为一般疑问句） ____________ you ____________ sugar and milk to make sweet food? 6. The chocolate melts quickly in the sun.（改为否定句） The chocolate ____________ ____________ quickly in the sun. 7. He heats the water to make it hot.（用now改写句子） He ____________ ____________ the water to make it hot now. 8. The water turns into ice.（改为同义句） The water ____________ ____________ ice. 9. We have a science lesson about changes today.（改为一般疑问句） ____________ you ____________ a science lesson about changes today? 10. She adds some salt to the soup.（改为否定句） She ____________ ____________ any salt to the soup. 答案 一、1.melt 2.heats 3.freeze 4.melts 5.mix 6.comes 7.liquid 8.put 9.is 10.shake 11.turns 12.heat 13.tastes 14.open 15.to make 16.cream 17.freezing 18.adds 19.is 20.have 二、1.What ;do 2.Does; heat 3.can；not 4.Where do 5.Do; mix 6.doesn't melt 7.is heating 8.freezes into 9.Do; have 10.doesn't add 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $