Greenland is the largest island in the world. It is in the north of Europe（歐洲）. Near Greenland is another island. It is small. It is named Iceland. Do you think that Greenland is green and warm? Do you think that Iceland is white with ice?

　　If you do, you are wrong. Not many people live on the big island of Greenland. That is because Greenland is not green. It's white. Most of the island is covered with lots of ice. The ice covering Greenland is higher than the world's tall building. What about Iceland? Is it colder than Greenland? No, it isn't. Iceland has ice, but not so much as Greenland. Iceland has a lot of springs（泉）. They give out hot water and steam（水蒸氣）. The weather is not so cold as Greenland. And there are a lot of people living on it.

A．Iceland is not so large as Greenland.

B．It is warmer on Greenland than on Iceland.

C．There is much more ice on Greenland than on Iceland.

D．Greenland is covered with ice.

Reading Comprehension

　　People are wiser and can do more things than other animals because of their wonderful brains. We can talk, read, write, build houses, and invent things. Your brain has three main parts：the front brain, the hind brain, and the middle brain.

　　The front brain is the largest. It is gray outside and white inside. This is the part of the brain where you remember, think, and plan. With this part of your brain you make your arms and legs do what you want them to do. Here is where the messages from the eyes, ears, and nose let you see, hear, and smell. The hind brain is smaller than the front brain and is more like that of other animals. This part of the brain gives you balance and control of your muscles. You walk without tripping and skip without falling because the hind brain is doing its job. If it were not, you would lose your balance and fall over.

　　The middle brain is the smallest of all, but very important. It controls the beating of your heart, swallowing food, breathing, and other things you do without thinking. The middle brain is a small swelling where the brain joins the spinal cord——a large bundle of nerves in your backbone. The spinal cord is the main road to and from the brain. It comes into the middle brain bringing messages from all parts of your body. It also takes charge when some part of your body is in danger. If you touch a hot iron, the message to the spinal cord makes you pull your finger away even before you feel the pain of the burn. This is called a reflex. Never connect most parts of your body to the spinal cord.

1．The middle brain is ________.

[　　]

A．not as important as the front and the hind ones

B．more important than the two

C．as important as the two

D．more important than the hind one, but less important than the front one

2．Which brain controls your body when you run fast?

[　　]

A．The front.

B．The middle.

C．The hind.

D．Both A and C.

3．The spinal cord leads to your ________.

[　　]

4．Which part takes charge when you drink coffee?

[　　]

5．If you cut your finger, how can your brain know it?

[　　]

A．Your nerves will send the message to the brain.

B．Your heart will feel it and let your brain know.

C．When you see the blood, your eyes will send the message.

D．Your backbone will collect the message and send it to the brain.

Reading Comprehension

　　People are wiser and can do more things than other animals because of their wonderful brains. We can talk, read, write, build houses, and invent things. Your brain has three main parts：the front brain, the hind brain, and the middle brain.

　　The front brain is the largest. It is gray outside and white inside. This is the part of the brain where you remember, think, and plan. With this part of your brain you make your arms and legs do what you want them to do. Here is where the messages from the eyes, ears, and nose let you see, hear, and smell. The hind brain is smaller than the front brain and is more like that of other animals. This part of the brain gives you balance and control of your muscles. You walk without tripping and skip without falling because the hind brain is doing its job. If it were not, you would lose your balance and fall over.

　　The middle brain is the smallest of all, but very important. It controls the beating of your heart, swallowing food, breathing, and other things you do without thinking. The middle brain is a small swelling where the brain joins the spinal cord－a large bundle of nerves in your backbone. The spinal cord is the main road to and from the brain. It comes into the middle brain bringing messages from all parts of your body. It also takes charge when some part of your body is in danger. If you touch a hot iron, the message to the spinal cord makes you pull your finger away even before you feel the pain of the burn. This is called a reflex. Nerves conned most parts of your body to the spinal cord.

1．What is the main idea of the passage?

[　　]

A．How brains make people intelligent.

B．How your brain is connected with most parts of your body.

C．How the spinal cord in your body works.

D．How each part of your brain functions.

2．Which part takes charge when one is designing his research project?

[　　]

3．The spinal card leads to your

[　　]

4．What does the underlined word “that” in the second paragraph refer to?

[　　]

5．If you cut your finger, how can your brain know it?

[　　]

A．Your heart feels it and lets your brain know.

B．When you see the blood, your eyes will send the message to your brain.

C．Your backbone collects the message and sends it to the brain.

D．Your spinal cord collects the massage and sends it to the brain.