[单项选择]

Many people catch a cold in the springtime or fall. It makes us wonder if scientists can send a man to the moon, why can’t they find a cure for the common cold The answer is easy. There’re actually hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn’t a cure for each one. When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and causes a blockage in it. You feel terrible because you can’t breathe well. But your body is actually eating the virus. Your temperature rises and you get a fever. But the heat of your body is killing the virus. You also have a running nose to stop the virus from getting to your cells. You may feel miserable but actually your wonderful body is doing everything it can to kill the cold. Different people have different remedies for colds. In the United States and some other countries, for example, people might eat chicken soup to feel better. Some p
A. There are too many kinds of cold viruses for them to identify.
B. There is no cure.
C. They are too busy.
D. The virus is too small.

[单项选择]

Many people catch a cold in the springtime or fall. It makes us wonder if scientists can send a man to the moon, why can’t they find a cure for the common cold The answer is easy. There’re actually hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn’t a cure for each one. When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and causes a blockage in it. You feel terrible because you can’t breathe well. But your body is actually eating the virus. Your temperature rises and you get a fever. But the heat of your body is killing the virus. You also have a running nose to stop the virus from getting to your cells. You may feel miserable but actually your wonderful body is doing everything it can to kill the cold. Different people have different remedies for colds. In the United States and some other countries, for example, people might eat chicken soup to feel better. Some p
A. Blood becomes slow.
B. Temperatures decreases.
C. They show our body is fighting the virus.
D. Have a headache.

[单项选择]Many people catch a cold in the springtime and / or fall. It makes us wonder.., if scientists can send a man to the moon, why can’t they find a cure for the common cold. The answer is easy. There are literally hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn’t a cure for each one.
When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and brings congestion with it. You feel terrible because you can’t breathe well, but your body is actually "eating" the virus. Your temperature rises and you get a fever, but the heat of your body is killing the virus. You also have a runny nose to stop the virus from getting to your cells. You may feel miserable, but actually your wonderful body is doing everything it can to kill the cold.
Different people have different remedies for colds. In the United States and some other countries, for example, people might eat chicken soup to feel better. Some people
A. we don’t know how we get cold
B. we aren’t sure the exact kind of cold viruses
C. we don’t know when we will catch cold
D. we aren’t sure the exact scientific method

[填空题]______ (这样的大雨天无论是谁在外面行走) will catch a cold.

[填空题]If 5 frogs catch 5 flies in 5 minutes, how many frogs are required to catch 50 flies in 50 minutes

[单项选择]A. Catch the train. B. Hurry to catch the bus.
C. Sit next to the bus stop. D. Fix his torn sleeve.

[填空题]neither warm nor cold

[填空题]I can’t catch what you have said.
I can’t catch______ ______you have said.

[单项选择]Where did Jerry fall off
A. Car.
B. Ship.
C. Bike.