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

单词拼写

根据下列句子及所给单词的首字母，在答题卷上按题号写出各单词的完全形式（每空限填一词）。

1.He has many t________ on how to finish the work well.

2.R________ the letter from John in America made me happy.

3.There is a s________ in England: It’s the thought that counts.

4.Many ads are a________ specifically at teenagers.

5.In Japan, it’s rude to p________ at anyone with your chopsticks.

6.People in Japan and America b________ differently at the dinner table.

7.If you go to a city on vacation, you’d better buy a travel g________.

8.Hangzhou is the c________ of Zhejiang province.

9.The professor is studying both ancient and m________ history.

10.It’s best to water plants either e________ in the morning or late at night.

I read an article about London in a m  1.    yesterday.

London is one of the c  2.    with a long history in Britain. It is also the b  3.city in Europe. You can find some of the best theatres and m  4.  of the world there, such as the National Theatre, the National Gallery(画廊) and so on. You may visit many places of i  5.   there. Most of the old and f  6.   buildings are o 7.     the north bank of the River Thames. On the south bank, there are some fine m  8.   buildings.

If you want to k    9.   the people there better, you should learn more about the l  10.   and the culture（文化） as well.

The food in Britain is very different (1)             our Chinese food. For example，they eat a lot of potatoes. They like to eat them every day. They eat bread for breakfast and usually for one other meal. They eat their bread (2)             butter, maybe cheese or jam, things we don’t eat much in China. Cheese and butter are made from milk. They drink a lot of milk, too. They drink the milk cold or hot, and they put it in their tea. They put sugar in their tea, as well. They are the world’s (3)             (big) tea drinkers. They like Chinese tea, but they drink mostly strong black tea from India and Sri Lanka. They don’t eat much rice. For their main meal they like meat or fish with (4)             (potato)and one or two vegetables. They serve all these together. After the main meal they always have something (5)             . They call this dessert（甜点心）. They don’t have Jiaozi in Britain.