题目内容

________ is a kind of extreme sports（极限运动）.

[　　]

A．Bungee jumping

B．running

C．jump high

答案：A
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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."
【小题1】 Whom did the three kids want to challenge?
A．Their chemistry teacher.B．Their headmaster.
C．Robert BoyleD．Thomas Edison
【小题2】 From the text, a red cabbage is a kind of ____.
A．plantB．animalC．paperD．liquid
【小题3】What is widely used as the acid-base indicator now?
A．red cabbageB．litmus paper
C．any plantD．any flower
【小题4】The story mainly tells us ____.
A．how to make litmus paperB．about the three kids' spirit
C．scientists were wrongD．the kids are heroes

The size and shape of your ears show your character more than any other part of the face. Other parts of the face change shapes as we get older, but ears do not change their shapes. They only change in size.
Reading people’s character from their ears is a very old science. In the past people thought that a person’s ears with color was dangerous. They also thought that the shape of the ears showed if a person was musical or not. Today，too many people believe that the size and shape of the ears help you know if a person is musical.
Ears are all different，and each different thing has a meaning. Next time you look at a person，see if his or her ears are large，medium-size，or small. Look at the lobes（耳垂）.Do they stick to the face? Ears that are always red mean that a person may get angry easily. Ears that are always cold and nearly white color mean that a person has a nervous character.
【小题1】When a baby is born, ________.

A．his/ her ears are red
B．his/ her ears will not change all the life
C．his/ her ears will not change in shape
D．he/ she will get large ears
【小题2】Reading people’s character from their ears is ____________.
A．only for music
B．an old idea
C．very new
D．a good way to talk with others
【小题3】When one’s ears are red, it means________.
A．he is a kind manB．he is very happy
C．he may get angry easilyD．he drinks too much
【小题4】If you look at someone’s ears, the right way is________.
A．to look at his face, ears and nose
B．to look at the size, color and shape
C．to look at his mouth, eyes and nose
D．to look at the hair, eyes and color
【小题5】Which may be the best title of the article?
A．Looking at a person in the right wayB．Ears and colors
C．The change of ears D．Ears and characters

Here is a menu for fast food restaurant. The prices are in American money, called dollars and cents. There are 100 cents in a dollar.

 
small
large
 
small
large
Main meals
 
 
Drinks
 
 
Hamburger
1.80
2.30
Coca Cola
0.80
1.00
Chicken burger
1.90
2.40
Tea
0.70
0.90
Vegetable burger
1.80
2.30
Coffee
0.80
1.00
Side dishes
 
 
Sweets
 
 
Fries
0.90
1.10
Ice cream/ Chocolate
1.20
1.60
Salad
1.00
1.20
Jam
0.50
  /
【小题1】From the menu, how much does a small hamburger cost?
A．One hundred and eighty dollars.
B．Two dollars and thirty cents.
C．Eighty cents.
D．One dollar and eighty cents.
【小题2】If you have only three dollars, what can you buy?
A．A large salad and a large ice cream.
B．A large chicken burger and a small cup of tea.
C．A small vegetable burger and a large chocolate.
D．A large hamburger and a small cup of coffee.
【小题3】Jam is a kind of _____.
A．main mealsB．side dishesC．sweetsD．drink
【小题4】Which is not mentioned in the menu?
A．CoffeeB．FriesC．HamburgerD．Wine
【小题5】A thirsty boy will probably ask for_____.
A．coca colaB．saladC．friesD．a chicken burger

In America, street dancing is a great outdoor sport for young people to do with a group of friends. Many people bring their radios out onto the streets, and then wait for others to join in.

Step 1

Wear comfortable clothes. Also wear comfortable running shoes that allow (允许) you to jump easily. Dancing needs a lot of movements, so it is smart to take care of your feet.

Step 2

Get some music that you can dance to and bring a radio or a CD player.

Step 3

Invite some friends to street dance. Put some music on and start dancing to it. Use your feet as much as possible and make quick movements.

Step4

Put your arms up to the right, and then move them quickly to the left while turning your body. This will make others start street dancing.

Step5

Try different movements if possible. Street dancing is all about free-style dancing. You can enjoy yourself while getting exercise by street dancing.

1.Street dancing is a kind of      sport for young people.

A．indoor            B．outdoor           C．ball              D．difficult

2.The underlined word “movements” means      in Chinese.

A．转动             B．活泼             C．迁移             D．方向

3.If you want to street dance, you don’t need to       .

A．wear comfortable clothes

B．have a radio or a CD player

C．invite some friends

D．ask your parents to dance with

4.Which of the following is NOT right?

A．Young people like to street dance.

B．When you street dance, you need music.

C．You must be careful with your arms while moving.

D．Move your arms quickly while turning your body.

5.The best title for the passage may be       .

A．How to street dance

B．Young people and street dancing

C．How many steps for street dancing

D．Street dancing in America

 

We all enjoy the beautiful show of colours as leaves change each autumn. But did you ever wonder how and why this happens?

Leaves are nature’s food factories. Plants take water from the ground through their roots and take carbon dioxide (二氧化碳) from the air. Plants use sunlight to turn water and carbon dioxide into glucose (葡萄糖). Glucose is a kind of sugar, which plants use as food for energy and growing.

The way plants turn water and carbon dioxide into sugar is called photosynthesis that means “ putting together with light”. A chemical called chlorophyll helps photosynthesis. It gives plants their green colour. As summer ends and autumn comes, the days get shorter and shorter, and trees “know” to begin getting ready for winter.

During winter, there is not enough light or water for photosynthesis. Trees rest during this time and live on the food they store during the summer. They begin to shut down their food-making factories.

As the green chlorophyll disappears from the leaves, we begin to see yellow and orange leaves. Small amounts of these colours have been in the leaves all along. We just can’t see them in the summer, because they are covered up by the green chlorophyll.

The bright reds and purples we see in leaves are made mostly in autumn. In some trees, like maples (枫树), glucose is caught in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn turn this glucose into a red colour. The brown colour of trees like oaks (橡树) is made from waste left in the leaves.

It is the mixture of all these things that makes the beautiful colours we enjoy during autumn.

1.The word “chlorophyll” in the third paragraph means _______ in Chinese.

A．叶绿素           B．氧气             C．胡萝卜素         D．蛋白质

2.The leaves of the trees in autumn turn yellow because of the short of _____.

A．water and carbon dioxide

B．glucose and energy

C．sunlight and water

D．sunlight and carbon dioxide

3.The way that _______________________ is called Photosynthesis .

A．plants change water and carbon dioxide into sugar

B．plants turn water and carbon dioxide into sugar with the help of sunlight

C．plants use glucose as food for energy and growing

D．chlorophyll is a great help

4.Which of the following is NOT true?

A．When autumn and winter come, the days get shorter and shorter.

B．During winter trees rest and live on the food they store during the summer.

C．During winter small amounts of yellow and orange colours are kept in the leaves all the time.

D．Trees begin to stop making food in summer.

5.This passage tells us __________________.

A．all the plants can grow well with the strong sunlight

B．there are all kinds of plants on the earth

C．all the colours of the leaves aren’t made from chlorophyll

D．maples and oaks have the same reason as other trees for the change of colours

 

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