Unit 7 How do things change？(单元自测练习卷)-2025-2026学年沪教版英语四年级下册

Unit 7 How do things change？单元过关检测 一、读一读，选出画线部分发音不同的选项。(10分) (　　) 1.A.great B.grape C.tree (　　) 2.A.cream B.brush C.bread (　　) 3.A.dress B.train C.drink (　　) 4.A.play B.green C.grass (　　) 5.A.fly B.fruit C.frog 二、选择正确单词补全句子或对话。(15分) 1.Let's________(make / makes)some orange juice. 2.Can you________(give / gives)me a plastic bag？ 3.My sister________(mixes / is mixing)the sugar and cream now. 4.—Mum，shall________(me / I)wash the pot first？ —Sure！ 5.—The freezer door________(is open / open). —I close it. 三、请给物品进行分类，将序号写在对应横线上。(10分) 1.gas：__________ 2.liquid：__________　 　 3.solid：__________　 　. 四、午餐的时候妈妈给大家制作了一碗番茄鸡蛋汤。请读一读句子，给句子排序并选择相符的图片。(20分) A.B.C.D.E. ( ) Add the tomatoes and water to the pot.And heat the mixture. _____　 　 (　　) Now，add the eggs to the pot and mix them together. _____ (　　)First，wash the tomatoes and cut them. 　 　 _____　 　 (　　) Add a little salt and wait some minutes.Then you can have delicious soup. _____ 　 (　　) Then，crack (打) two eggs into a bowl and beat(搅拌) them. _____ 五、请将对应的原因和结果连线。(10分) Cause Effect 1.We eat some food. A.We can see some gases. 2.We heat some water. B.I feel cool. 3.Salt can speed up(加速) the melting of snow. C.We go out safely in winter. 4.I drink ice water. D.We are not hungry. 六、选择合适的句子补全对话。(15分) Longlong：Huahua，1._______ Huahua：A good question！I think ice cream can change.2._______ Longlong：You're right！3._______ Huahua：Yes！The solid wax(蜡) changes into a liquid. Longlong：4._______ Huahua：Wow！I love popcorn(爆米花). Longlong：5._______ Huahua：Let's watch these changes next time！ A.What things around you can change? B.When it’s hot,ice cream can melt. C.And corn turns into popcorn when we heat it. D.Candles can melt too. E.That’s interesting! Many things can change. 七、请根据图片选词，并用其适当形式填空，补全日记。(10分) soil liquid gas melt We have a magic picnic today！ My ice cream is a 1.________at first. But after 5minutes in the sun，it begins to 2.________. My juice stays a 3.________in the cup. When I open the thermos(保温杯)，I see some 4.________coming out. It is interesting to see these changes！ 八、Mike的爸爸给孩子科普了一些生活中的小知识。阅读短文，判断句子正(T)误(F)。(10分) When Mike and his family make ice cream，Dad puts salt and ice in the big bag.Mike asks，“Why？” Dad says“It's science(科学)！” Ice melts at 0℃.But when we add salt to ice，the salt lowers(降低) the freezing point of the ice.The ice around the bag gets even colder，maybe 10℃or lower！This super-cold ice mixture can take heat(热量) away from the cream mixture in the bag very quickly.So the cream mixture quickly freezes into ice cream. We also use salt to speed up the melting of ice on roads in winter. It makes the ice melt quickly so that cars can drive safely.Salt is very useful！ (　　) 1.Salt makes ice melt at a higher temperature. (　　) 2.The ice and salt mixture can get colder than 0℃. (　　) 3.We also use salt to make ice on roads in winter. (　　) 4.The passage is about why salt is used when making ice cream. 参考答案 一、CABAA 二、1.make 2.give 3.is mixing 4.I 5.is open 三、1.A 2.B C 3.D E 四、2D；4E；1B；5C；3A 五、1D；2A；3C；4B 六、ABDCE 七、1.solid 2.melt 3.liquid 4.gases 八、FTFF 1 学科网（北京）股份有限公司 $