题目内容

【题目】阅读课文节选，完成练习。

鱼的肚子里一般都有一个鳔。鳔有什么用处呢?原来，这个小小的鳔能够帮助鱼浮上来，也能够帮助鱼沉下去。鱼要浮上来的时候，鳔里慢慢地装满了气。鳔胀大了，鱼摆来摆去，就浮上来了。鱼要沉下去的时候，鳔里的气慢慢地放出来。鳔缩小了，鱼的身体略微变小，鱼摆来摆去，就沉下去了。

1．写出下列词语的反义词。

沉——( ) 慢慢——( ) 缩小——( )

2．“鳔”能够帮助鱼________，也能够帮助鱼________。当鱼要浮上来的时候，鳔里________。鱼要沉下去的时候，鳔里的气就________。

【答案】1.沉——(浮) 慢慢——(迅速) 缩小——(放大)

2.浮上来 沉下去 慢慢地装满了气 慢慢地放出来

【解析】

练习册系列答案
相关题目

【题目】根据实际情况回答问题：70%

（1）Can a hen swim ? , .

（2）What do you do ? .

（3）Do cats like sleeping ? , .

（4）What do we call a baby goose ? We call .

（5）Do you want to learn something interesting ? Yes , .

【题目】仿写。 —What can you see?
—I can see an apple.
—What colour is it?
—It's red.

【题目】How does he go to school? ______ subway.

A. No B. On

【题目】阅读，判断下列句子与短文内容是否一致，对的 打“ √ ”，错的打 “ ×”。

Li Qing and Li Ping are twins.They’re thirteen.They live with their uncle and aunt in Guangzhou.Their uncle has a son.His name is Li Hai.Li Qing, Li Ping and Li Hai study at Yucai Primary School, but they’re not in the same class.

Li Hai’s parents are teachers.They teach Chinese at Yucai Primary School.They work hard.All their students like them.

The three children go to school together.They eat their lunch at the school canteen.After school, they often play ping-pong together.

（1）Li Qing and Li Ping are brothers.

（2）Li Qing and Li Ping are Li Hai’s cousins.

（3）Li Qing, Li Ping and Li Hai are classmates.

（4）Li Hai’s parents work at the same school.

（5）Li Hai, Li Qing and Li Ping have lunch at school.

【题目】用an 或a 填空。
① bag ② big bag ③ orange

【题目】Tom’s mother teaches English. What does his mother do?

A. She is a policewoman.

B. She is a teacher.

C. She goes to work by car.

【题目】She long hair.

A.have B.is C.has

【题目】 阅读课文节选，完成练习。

小花鹿把新鲜空气装进大葫芦，带到城里，卖给了一位老奶奶。过了几天，老奶奶高兴地对小花鹿说：“吸了你的新鲜空气，我的气喘病好多了。我要把这个好消息告诉大家。”

1．用“_____”画出老奶奶说的话。数一数，老奶奶一共说了________句话。

2．口头填空。

老奶奶的气喘病好多了的原因是________________________。

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网