Have you ever tried making music with glasses or bottles filled with water? I bet your favorite band hasn’t. Experiment with your own special sounds by turning glasses of water into instruments, make some cool music and find out how it works.

What you’ll need:

Five or more drinking glasses or glass bottles. Water. Wooden stick such as a pencil. If possible, you’d better do it in a small but empty room with a long table in.

Instructions:

Line the glasses up next to each other and fill them with different amounts of water. The first should have just a little water while the last should be almost full, and the ones in between should have slightly more than the first.

Hit the glass with the least amount of water and watch the sound, then hit the glass with the most water, which makes the higher sound?

Hit the other glasses and see what noise they make. See if you can get a tune going by hitting the glasses in a certain order.

What’s happening?

Each of the glasses will have a different tone when you hit with the pencil. The glass with the most water will have the lowest tone while the glass with the least water will have the highest. Small vibrations (震动) are made when you hit the glass, and this creates sound waves which travel through the water. More water means slower vibrations and a deeper tone.

1.What’s needed in the experiment according to the passage?

A. Five bottles of water. B. Seven drinking glasses

C. A big and empty room. D. A pencil and a wooden stick.

2.According to the passage , the purpose of the experiment is to get __________.

A. a tone. B. a tune. C. some vibrations. D. some water

3.Which glass can have the lowest tone when you hit it in the experiment?

A. The one with no water. B. The one with the most water.

C. The one with the least water. D. The one with half of the water.

4.Where is the passage the most likely to come from?

A. A Travelling Guide B. A Child Novel

C. A Fashion Magazine D. A Music Textbook.

There are many colors in nature. But do you know if a color has weight? I think you’ll say “no”. But I am afraid you are wrong. If you don’t believe, you may do a small experiment.

First, put two objects with the same weight into two boxes. Then cover the box. Third, wrap one box with a red piece of paper, the other with a white piece of paper. OK. Now hold the boxes with your hand one by one.It is certain that you will think the red one is a little heavier.

Why do you think so? A scientist found that different colors have different weight in a man’s mind. So he did many tests and at last he got the result. That is to say, every color has its own weight in our mind' and their order is the same. The heaviest color is red, then blue, green, orange, yellow and white.

The scientist told us that colors also have smell. Can you smell the color? Of course not. Then why did the scientist say so? That is because every color stands for a kind of light with a certain wavelength. It reaches our brain through sense organs.

According to this discovery, scientists say that people accept the colors they like, and refuse the colors they hate. So your body and mind will be healthy by using the colors you like. Or you’ll be nervous or even get ill. For example, if you stay in a room with red windows, wallpapers and furniture for two hours, you’ll feel you have been there for four hours. But if the room is blue, you’ll feel you have been there for only an hour. Another example, if a person walks out of a red room and into a blue room, his temperature will fall. That means our body temperature will change with different colors.

1.The purpose of the second paragraph is to tell us __________.

A. a red box is heavier than a white one B. a color has weight in one’s mind

C. white paper is lighter than red paper D. you can know the weight of a color by holding it

2.Why did the scientist say colors have smell?

A. Because people can sense the light from colors.

B. Because we can smell colors with our nose.

C. Because every color has its own sweet smell.

D. Because every color can give off light of the same length.

3.If a person walks from a blue room to a red room, his body temperature will __________.

A. rise B. fall C. stay the same D. change now and then

4.It can be implied from the text that __________.

A. colors have orders in weight

B. colors can change the weight of an object

C. people would stay longer in a room with red windows

D. colors can affect our mood and health

5.This passage is probably a __________.

A. book review B. fiction novel C. fairy tale D. science report

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网