If I ask you to shut your eyes and gave you a piece of apple to eat, would you be able to tell me what it is just by tasting it? Of course, you could. Your tongue is covered with tiny “taste buds” which help you know what different foods taste like. Do you know that foods would taste different if you did not have a nose? This experiment shows how important your nose is when you taste things.

What You Need:

• a friend to help

• small pieces of any food like carrot, orange, banana

• small pieces of apple, raw(生的) potato, and onion

What You Do:

There are actually three different experiments. You and your friend should take turns to try them on each other.

Experiment 1:

Have your friend close her eyes and open her mouth.

Give her a piece of the food and ask her to taste it.

Then, ask her what she thinks it is. She will probably guess correctly.

Experiment 2:

While your friend has her eyes closed, give her a piece of the raw potato. At the same time, hold a piece of apple right under her nose. Ask her to eat the potato (but don’t call it by name) and tell you what she thinks it is. She will say it is a piece of apple!

Experiment 3: (for the brave)

Take a piece of raw onion. You don’t have to close your eyes this time. Squeeze your nose closed with your other hand so that no smells can get into your nose. Now take a nibble of the onion. Surprise! As long as you hold your nose, you will not be able to taste the onion.

The Science Secret

You already know the science secret. Your nose and your tongue work together to make food taste the way it does. Your tongue, however, can taste only certain flavors like salty, bitter, sour, and sweet. All of the other “tastes” are actually “smells,” and you need your nose to “taste” them. Oh, and you might use this science secret the next time you are told to eat something you don’t like the taste of. If you hold your nose while you eat it, you won’t “taste” it at all.

1.According to this article, what could a reader know about food?

A. People hold their noses to eat onions.           

B. If you can smell potatoes, you will taste apples.

C. People need a sense of smell to taste some food.  

D. If you close your eyes, food will taste better.

2.What is the most likely reason Experiment 3 is called “for the brave”?

A. You keep your eyes open.                           B. You have to eat a raw onion.

C. You have to squeeze your nose.                   D. You do the experiment alone.

3.What’s the best title of the passage?

A. Your Eyes Knows                               B. Your Nose Knows  

C. Your Mouth Knows                             D. Your Tongue Knows

Everybody likes to have a good time, but do you know that laughing is very good for your health? Scientists believe that laughing can help your body fight illness. Because of this, an Indian doctor opened the first laughter club in 1995.
Now there are more than 1,000 laughter clubs around the world. A laughter club is a place where you can go to laugh in your way for happiness and good health. Steve Wilson, the man who took laughter clubs to America, said, “We laugh with each other, but never at each other. At first, the laughter exercise feels a bit false. But soon the laughter becomes real.”
Laughter is very important when we communicate with other people. It helps us make friends and understand each other better. We can laugh with people all over the world. It is the same in any language. So never be afraid to laugh. It’s good for your health.
Fill in the blanks according to the passage. Only one word for each blank.
Laughing can make us happy and (76)      .The first laughter club (77)      opened in 1995. Now there are (78)      1,000 laughter clubs all over the world. We can go to a laughter club to laugh for our health, but remember (79)      to laugh at each other. Laughter is an international language. It is (80)      to each other’s understanding. Let’s laugh with people around us.

请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子通顺。

1. China is one of the       countries in the world.

2. When feeling           , you can wear white.

3. Do you know that a bull has four           ?

4. To tell you the __________, I lost the present May give me yesterday.

5. She just wants to make ___________ look pretty.

根据句意和首字母或汉语提示写出单词。（每小题1分，共10分）
1. It’s _____________(考虑周到的)of your parents to bring you some medicine.
2. The woman often ___________(争论)with her husband .
3. We’re proud that China has_________(成功 )sent up another spaceship in to the sky.
4. He is a h___________ teacher, he can make us laugh.
5. Do you know that the powerful red  ___________(平衡) the colour of white.
6. An honest person should keep his p_________.
7. I p__________ camping to hiking in the past.
8. The leaders always make great___________(决定) to make our country more beautiful.
9. He ___________（建议）you to do more exercise. It’s a piece of good __________（建议）.

提示作文。(12分)

每年中学生意外伤害或者死亡事故频发，给许多家庭带来永久的伤痛。作为中学生，我们要如何有效地自我保护，免受伤害？请以“How to keep safe”为题，写一篇80字左右的短文,开头已给出，不计入字数。除了所给的以下四个要点要写上，还要补充1-2点个人建议。

要点如下：1. 遵守交通规则，不闯红灯，不骑电动车(electric bicycles)。

2. 不到河里游泳，要在成年人(adult)陪伴下到游泳池游泳。

3. 要在父母允许后才能和朋友外出。

4. 在学校和同学友好相处，不争吵、不打架，有事情向老师求助。

Do you know that many dangerous things will happen if we are not careful enough? As a student, how to keep safe is very important. _________________________________________

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