更多"Many people catch a cold in the spr"的相关试题:
[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
[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]Dress warmly, （）you’ll catch a cold.
A. or else
B. or rather
C. in no way
D. on the contrary
[填空题]______ (这样的大雨天无论是谁在外面行走) will catch a cold.
[单项选择]I catch cold now and then.
A. always
B. occasionally
C. constantly
D. regularly
[单项选择]An American scientist has found that many images of dinosaurs may be wrong. For years, pictures of the ancient creatures have shown their nose openings near the top of the head. The new study suggests the dinosaurs’ nostrils were just above the mouth.
Dinosaurs used their nostrils to breathe, smell and control their body temperature. The new theory could help explain how the huge creatures were able to survive by using their sense of smell to find food, a mate and possible enemies.
Lawrence Witmer of Ohio University in Athens, Ohio led the study. The publication science reported his findings.
Many of the early dinosaur remains recovered by scientists were from huge creatures called sauropods. Scientists believed that sauropods must have lived in water because their bodies were so huge and their necks were so long.
Nostrils high on the head would have permitted the dinosaurs to breathe while partly under water. The discovery of a sauropod head bone in 1884 added supp
A. Biology textbook.
B. Scientific report.
C. Science fiction.
D. Essay.
