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

 

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

 

In a school some trouble was caused by the students. They are very naughty and didn’t obey the school rules.They often fought with each other and they didn’t forgive each other. One day a new teacher came to this school. When he heard that, he came up with a good idea.

He told each of his students to bring a clear plastic bag and a bag of potatoes to school. For every person they didn’t want to forgive in their lives, they chose a potato, wrote the person’s name on it, and put it in the plastic bag.

Some of their bags were very heavy. They were then told to carry this bag with them everywhere for one week. They would put it beside their bed at night, on the seat when sitting in a car or on a bus, and next to their desk at school. Days of carrying the bags around with them made students get to know what a weight they were carrying in their minds. And they had to pay attention to it all the time so they didn’t forget it or leave it in embarrassing (令人难堪的) places. As time passed by, the potatoes went bad and smelt nasty.

Too often we think of tolerance as a gift to other people, and it clearly is for ourselves! If we choose to keep our sadness and hatred (仇恨) in our hearts, we will have to carry them around all our lives. After that, the students got on well with each other and didn’t fight anymore. Learn to forgive , and you will be happier at the same time.

1.The new teacher asked the students to bring ________ to school.

A．a clear plastic bag of potatoes

B．a clear plastic bag and a potato

C．some clear plastic bags of potatoes

D．a clear plastic bag and a bag of potatoes

2.They wrote the person’s name on the potato, who________.

A．they liked                             B．they didn’t forgive

C．hated them                            D．liked them

3.The underlined word “tolerance” means________.

A．感恩             B．宽容             C．仇恨             D．悔恨

4.From this passage we can know that ________.

A．we should learn to forgive

B．we should know something about potatoes

C．we shouldn’t use plastic bags

D．we should take potatoes to school

5.Which of following is NOT true?

A．Tolerance is a gift for other people and ourselves.

B．Carrying a bag of potatoes made the students embarrassed.

C．The students had to take bags of potatoes with them everywhere.

D．The students had to take bags of potatoes with them for about two weeks.

 

Plant scientists consider them as fruit. Most other people think of them as vegetables. Whatever you call tomatoes, there are many different kinds of this popular and healthy food.
There are two groups of the plants. Small tomato plants grow to about one meter. They can be planted rather close together. Some short kinds do not require special care and are often gotten crop by machines. Large tomato plants can grow over two meters tall. They also produce larger fruits.
People who grow only a few plants can place wire cages around each one. The cage can be made of wire fence material. The cage helps the plant grow taller and produce a better crop.
Tomatoes often need extra calcium (Ca), or the fruits may be ruined. Add lime to the soil can solve this problem. Dry lands may also ruin the fruits. Tomatoes need water regularly. The soil should never dry out completely. Dried grass or leaves placed around the plant can help hold water in the soil and stop the growth of unwanted plants.
Tomatoes are native to South America. The tomato is a member of the potato family. The leaves of the plant are poisonous, like the leaves of its relatives. Before the 18^th century, people grew tomatoes only as pretty plants. They called the bright red fruit a “love apple”, but would not eat it.
【小题1】Which of the following is right about the small tomato plants?
A. They can grow to about 2 meters.          
B. They can’t be planted close together.
C. Some of them don’t require special care.
【小题2】People place wire cages around the plant in order to ___________.
A. protect the plant from being taken by others.
B. help the plant grow taller and produce a better crop
C. keep the plant from being eaten by animals
【小题3】The underlined word “ruin” probably means “___________”.
A. grow         B. destroy              C. stop          
【小题4】 People often give tomatoes extra calcium by ___________.
A. adding lime to the soil                    B. watering the plant regularly
C. putting dried grass around the plant 
【小题5】What can we learn from the passage?
A. Tomatoes are native to North America.
B. The leaves of the plant can also be eaten.
C. Americans began to eat tomatoes from the 18^th century.

B）根据短文内容及首字母提示，填写所缺单词。

Be a potato, but be the best

A young college student thought that he chose the wrong major (专业) at a common college, so he drank every day and didn’t study at all. He b  1    more and more discouraged.

But he was never a  2    from Professor Yang’s biology (生物) class. He liked the course. Besides, Yang’s class was so i  3    that he always listened carefully, never caring about w  4    the other students were paying attention or not in class.

    Once he put a note in the homework he handed in, saying: “Professor, it is said that today’s college students are c  5    than potatoes. Do you agree?”

That day Professor Yang sent for him after class. When he came, he f  6   the professor at a table with food on it. They drank happily over their meal.

When they became half drunk, the professor took out a small potato that was sprouting (发芽的). “Do you know how much this c  7  ?” he asked the young man. “It’s soft but poisonous. N  8   will take it even if it’s free. ” He then threw the potato away.

The professor then showed him another potato. It was half the s  9   of a football and perfectly round. “This potato is organic (有机的). It is not only large and fresh but also free of pollution. People are in need of such k  10    of potatoes and they’re quite expensive.”

The young man was impressed by what he’d heard. “Be such a potato,” said the professor.