摘要:( ) A. class B. Sunday C. Monday D. colour girl shirt skirt thirteen purple Thursday Saturday paper colour teacher eraser umbrella sweater open marker

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Three kids have been learning chemistry for only a few months. But they have already begun to challenge (挑战) a world famous scientist!

   Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator (酸碱指示剂). They want it to take the place of litmus (石蕊) paper.

"We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other."

   British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world.

   But when the kids did some experiments in class last winter, they saw that the litmus paper didn’t turn very blue with base matter. It's hard to get a clear result.

  Will there be a better indicator than litmus paper? The three kids decided to try and find out!

    How? They went to collect over 40 plants in parks, gardens and markets. Then they ground (研磨) leaves, flowers and stems (茎) to get the pigments (色素) from them.

   The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper!

"It's our first scientific journey, Huang said, "But it makes me want to try harder."

1. Whom did the three kids want to challenge?

A. Their chemistry teacher.     B. Their headmaster.

C. Robert Boyle              D. Thomas Edison

2. From the text, a red cabbage is a kind of ____.

A. plant  B. animal  C. paper  D. liquid

3.What is widely used as the acid-base indicator now?

A. red cabbage              B. litmus paper

C. any plant                D. any flower 

4.The story mainly tells us ____.

A. how to make litmus paper    B. about the three kids' spirit

C. scientists were wrong        D. the kids are heroes

 

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Everyone has worries. How do you deal with your worries? There is always something you can do to help yourself feel less worried. Sitting there worrying is no fun and it won't solve your problems.
Grades at school are often a top worry for kids. if you worry most about grades, ask yourself these questions:
●  Why are grades important? What do grades mean to me?
●  How do I get ready for class? Do I go over my notes even when there isn't a test?
●  Do I have a good place to do my homework?
●  Have I tried different ways of studying?
If your worry is about a fight you had with your friend, you might write down al! the things you could do-write a note to him or her, invite him or her to watch a basketball game, say sorry to him or her and so on. Once you have a list of things you could do, you can choose one thing that could get your friend back.
You can ask for help when you're worried. You can find someone to talk to, such as your parents, friends, and teachers.
(  )11. What do kids often worry most about?
 A. Their hobbies.                     B. Their homework.
 C. Their marks at school.               D. A fight with their friends.
(  )12. According to the passage, when you're worried, you'd better _______.
   A. work hard                        B. talk to someone
 C. get ready for class              D. write down your worries
(  )13. If you're worried about grades, DON'T ask yourself "_______".
 A. Why are grades important?           B. What do grades mean to me?
 C. How do I get ready for class?         D. Why not give up my studies?
(  )14. If you had a fight with a friend, you could _______.
A. invite him or her to watch a game      B. put the blame on him or her
C. try to make new friends              D. leave him or her alone
(  )15. What does the passage mainly tell us?
   A. Who is often worried.               B. When people are worried.
  C. How to deal with worries.      D. What kinds of worries people have.

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完形填空(共15小题;每小题1分,满分15分)

阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

Monday morning is an important time at our school. All of the students go to the playground. We listen to music, and we  1 the national flag go up.

  Usually, one student gives a talk on Monday mornings. One Monday last year, a boy gave the talk. He was   2 and excited! When I saw him, I wanted to have a try, too.

  Can I really do it?

  Last week, our teacher said our class should give the talk. My teacher   3 me, “I know you want to have a try. Next Monday morning, I want you to give the talk. Go and write something down.  4 for it, I’m sure you’ll do well.”

“Thank you.” I answered. It was such a great  5 for me! When I got home, I was excited. I wrote two pages for the talk. I read them again and again. When I read, I asked my parents  6 . I wanted to make my teacher happy.

Finally Monday morning came. I began to feel  7 .

When did I last give a talk to  8 many people? Never! This was my first time. Could I really  9 it? Maybe I couldn’t finish the talk.

When I got to school, we all went out to the playground. I  10 in front of everyone. I opened my mouth, but I couldn’t say anything.

“Take it easy,” I said to  11 . “Don’t be nervous. You can do it.”

Just then, I looked down at everyone. I saw about 1,000 eyes. They were all looking at me ! I couldn’t  12  stand up.

I took a look at their eyes more carefully. Their eyes seemed to say, “You can do it! Come on!   13 afraid, just talk!”

I took a big breath. Then I began to talk. It wasn’t hard. It was easy.

I don’t know 14 I finished my talk, but I tried my best to do it. I felt so good that day. I showed myself  15 everyone what I can do.

1.                A.watch          B.see            C.notice    D.look at

 

2.                A.surprised       B.proud          C.bored    D.careful

 

3.                A.spoke          B.asked for        C.said to    D.showed

 

4.                A.Look out        B.Come on        C.Take care D.Get ready

 

5.                A.chance         B.news           C.time D.message

 

6.                A.to do          B.to listen         C.to see    D.to play

 

7.                A.excited         B.happy          C.nervous  D.surprised

 

8.                A.after           B.such           C.before   D.so

 

9.                A.do            B.speak          C.talk  D.take

 

10.               A.sat            B.stood          C.jumped   D.ran

 

11.               A.me            B.myself         C.my class   D.my parents

 

12.               A.be able to       B.hardly          C.never D.even

 

13.               A.Not be         B.Don’t         C.Don’tbe  D.Not

 

14.               A.where         B.how           C.why  D.whether

 

15.               A.with           B.at             C.to    D.for

 

 

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