题目内容
（请给出正确答案）
A.Hello.Have a nice dinner
B.So, youre having dinner
C.How much do you have for dinner
D.How do you enjoy it
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更多“When you see an American frien…”相关的问题
A.tidy
B.neat
C.intidy
D.untidy
_ of her smile. When you're not looking at her, she seems to be smiling; when you look at her, she stops.
A、barrier
B、misfortune
C、prospect
D、mystery
A.carries
B.is carrying
C.will be carrying
D.has carried
Deer leave the high ground and come down from the mountains before a storm. If you see this, you can be sure that there will be a storm within two days. When you see large numbers of sea crabs on a sandy beach, it is time to leave. A change in air pressure over the water warns the crabs that a storm is coming. To escape the stormy sea pounding the shore, they leave the water and seek shelter on land.
Birds are especially good weather indicators because they also show the effect of a pressure drop in many ways. For example, some birds become easily annoyed and will fight over a piece of bread. Other birds sing just before a storm. It seems they know they won’t get another chance for an hour or two. Birds also seek shelter before a storm. You will sometimes see birds resting in trees or staying closely together on a wire near a building. This is a good storm signal.
Seabirds sit out a storm on land. Anytime you see seagulls sitting on the ground in large groups, reluctant to fly, it is not a very good day to go sailing. It is unusual to see large groups of birds flying overhead in the summertime. Watch for other weather signs if you see this. You should also stay alert if you see migrating birds flying in the wrong direction. These birds may be flying ahead of a storm. And if you can’t see a bird anywhere, look out! They may have flown to a different place because a violent storm is coming in their direction.
1.What’s the main idea of the passage？
A.How to pay close attention to important clues in nature.
B.How to become prepared for any kind of weather.
C.How to predict weather changes by wildlife.
D.What to do when we see the weather signs.
2.When a storm is surely coming in two days,（）.
A.some birds become easily annoyed and fight with each other
B.deer leave the high ground and come down from the mountains
C.large number of sea crabs move on a sandy beach
D.field mice come out of their holes and run around
3.What wildlife indicates particularly well that a storm is coming？
A.Seagulls.
B.Sea crabs.
C.Field mice.
D.Birds.
4.How can you know it’s not a good day to go sailing？
A.Migrating birds are flying in the wrong direction.
B.You can’t see a bird anywhere.
C.Seagulls are sitting on the ground in large groups.
D.Birds are flying overhead in the summertime.
5.What does the want to say？
A.Wildlife is a good helper to predict the weather.
B.Wildlife is more efficient in predicting the weather.
C.People need to find out about the weather change.
D.Get prepared before a violent storm is coming.
填句补文
Biological Clock
When the sun rises on a warm and sunny day, you can see some flowers open up. When they close late in the afternoon, other flowers open.
Biological rhythms(生物节律), like the opening and closing of flowers, happen all over nature. But not all of them are daily rhythms. Some, like the beating of our heart, happen every second. （1）Scientists use the term biological clock to describe the timing that controls biological rhythms. （2） In some animals it is probably controlled by the brain. In plants and other living things that have no brain, it must be something else.
The migration of animals happens when a signal is sent out. For example, when days become shorter, birds leave the northern parts of the world and fly south where it is warm. （3）Humans also have biological clocks that control their daily rhythms. When people travel by plane from one continent to another, they often cross many time zones. Their internal clocks don’t seem to work correctly. We call this jet lag(时差). （4）People who work night shifts also have problems with their biological clocks. They may not be as active as people who work during the daytime.
Biological clocks control many rhythms of life. （5） Doctors are looking for new ways to make travelling more comfortable and medical treatment more effective.
A. But where can you find it？
B. This makes them feel tired.
C. In the summer they fly back to have babies.
D. We are learning more and more about them.
E. Biological clocks can be adjusted.
F. Other rhythms are based on months, seasons or years.
Water ___3___ almost everywhere. Even in the driest part of the would there is some water in the air. You can not see it or feel it when it is part of the air. The water ___4___ seas and rivers is a liquid. The water in the air is not a liquid but a gas.
Clouds are made of water. They may ___5__ made of very small drops of water. Water, you have found,is very useful, so we must save water.
1)、A.ourselves
B.is found
C.be
D.in
E.no
2)、A.ourselves
B.is found
C.be
D.in
E.no
3)、A.ourselves
B.is found
C.be
D.in
E.no
4)、A.ourselves
B.is found
C.be
D.in
E.no
5)、A.ourselves
B.is found
C.be
D.in
E.no
"My money has finished and my friends have gone," said the young man. "What will ___3___ to me now？"
"Don't ___4___, young man," answered Nasreddin. "Everything will soon be all right again. Wait, and you will soon feel much happier."
The young man was very glad. "Am I going to get rich again then？"
"No, I ___5___ mean that," said the old man. "I meant that you would soon get used to being poor and having no friends."
1)、A.happen
B.didn't
C.nothing
D.all the
E.worry
2)、A.happen
B.didn't
C.nothing
D.all the
E.worry
3)、A.happen
B.didn't
C.nothing
D.all the
E.worry
4)、A.happen
B.didn't
C.nothing
D.all the
E.worry
5)、A.happen
B.didn't
C.nothing
D.all the
E.worry
