1、 【精品】Unit7 Lesson24 练习及解析北京课改版四年级英语下册一、按要求写单词。1.lose (过去式 )_ 2.leave (过去式)_3. on the playground（汉语） _ 4.be careful (汉语)_5. key to my house(汉语)_【答案】1.lost 2. left 3. 在操场上 4. 小心 5. 我家的钥匙【解析】1.lose 的过去式是 lost2.leave 的过去式是 left3.on the playground 在操场上4.be careful 小心5. key to my house 我家的钥匙二、根据句意及首字母填写单词
2、。1.Whats the m_?2.I lost the key t_ our house.3.I l_ my schoolbag on the playground.4.You should be more c_ next time.5. You l_ sad.【答案】1. matter 2.to 3.left 4.careful 5. look【解析】1. 怎么啦？Whats the matter?固定用法。2. 我丢了我们家的钥匙。the key to.意为: 的钥匙。3. 我把我的书包忘在操场上了。left 是 leave 的过去式，意为：忘了带。4. 下次你应当更加小心些。be mo
3、re careful 更加小心。5. 你看起来很难过。look 看起来，系动词。三、单项选择。1.I lost the key _our house.A. to B. at C. for2. What happened _the boy?A. to B. on C. in3. Let me _.A. checks B. check C. to check4.I left my schoolbag _the playground.A. in B. at C. on5. You should be more _next time.A. careful B. carefully C. care【答案
4、】1.A 2. A 3. B 4. C 5.A【解析】1. 此句意是：我把我们家的钥匙丢了。the key to意为的钥匙。2.此句意是：那个男孩发生了什么事？What happened to sb.?某人发生了什么事？3. 此句意是：让我检查一下。Let 后跟动词原形，应选 B。4.此句意是：我把我的书包忘在操场上了。on the playground 在操场上。5. 此句意是：下次你应当更加小心些。be more careful 更加小心。四、根据句意，选词填空。left look to happened matter1.I l_ my schoolbag on the playgroun
5、d.2. Whats the _with you?3. I lost the key _our house.4.What _to the boy?5. You _sad.【答案】1.left 2.matter 3.to 4.happened 5. look【解析】1. 此句意是：我把书包忘在操场上了。left 是 leave 的过去式，意为：落下，忘了带。2. 此句意是：你怎么啦？Whats the matter with you?固定用法。3. 此句意是：我把我们家钥匙丢了。the key to意为的钥匙。4. 此句意是：这个男孩发生了什么事？What happened to sb.?某人发
6、生了什么事？5. 此句意是：你看起来很难过。look 看起来，系动词。五、根据要求完成句子。1. It is in your schoolbag.(写出一般疑问句 )_2. I left my schoolbag on the playground. (对画线部分提问)_3.You should be more careful next time.(写出否定句)_4. Whats the matter with you?(写出同义句)_5.lost, our, to, I, the, house, key(.)(连词成句)_【答案】1.Is it in your schoolbag?2.Whe
7、re did you leave your schoolbag?3.You shouldnt be more careful next time.4. Whats wrong with you?5. I lost the key to our house.【解析】1.此句变为一般疑问句时要将动词 is 提到句首，并且第一个字母要大写。2.此句画线部分是 on the playground, 所以提问时要用 Where, 提问时要借助于助动词did, 后面的动词用原形，另外要将第一人称的 I 变为第二人称的 you, my 变为 your, 应为Where did you leave your
8、schoolbag?3 此句变为否定句时要在 should 后加 not。4. 此句意是：你怎么啦？与之意思相近的是 Whats wrong with you?5.根据所给词可组成句子为：I lost the key to our house.我丢了我们家的钥匙。六、根据对话内容判断正误，对的用 T，错的用 F。Mum: You look sad, Baobao. Whats the matter?Baobao: I lost the key to our house, Mum. Im sorry.Mum : Well, is it in your schoolbag?Baobao: Let
9、me check.Mum : Whats the matter now?Baobao: I left my schoolbag on the playground.Mum: Again? You should be more careful next time.( )1. Baobao looks happy.( )2. Baobao lost the key to his house.( )3. He is sorry to his mum.( )4. Baobao left his schoolbag in the classroom.( )5.Mum asked him to be more careful next time.【答案】1. F 2.T 3.T 4. F 5.T【解析】1.根据对话中 You look sad, Baobao.可判断此句是错误的。2. 根据对话中 I lost the key to our house.可知此句是正确的。3. 根据对话中 Mum. Im sorry.可知此句是正确的。4. 根据对话中 I left my schoolbag on the playground.可判断此句是错误的。5.根据对话中 You should be more careful next time.可判断此句是正确的。
