It was a cold winter day. I rushed down the busy road towards the bus stop. Taxis passed m
【C1】
A.and
B.but
C.so
D.or
【C1】
A.and
B.but
C.so
D.or
The body needs fat to keep it ___________ the cold during the long winter months.
[A] between
[B] from
[C] for
[D] out
The underlined word "hibernation" in paragraph 2 means ______.
A. a sleep to avoid eating
B. a temperature in a cold weather
C. a sleep in the cold season
D. an animal to practice sleep in winter
A.the longer
B.the longest
C.a longer
D.a long
The original home of the President needed to be rebuilt______.
A.because John Adams' wife did not like it
B.because it was cold in winter even with 50 fireplaces
C.because it had burned down during the war
D.because George Washington was not willing to live in it
A.He enjoyed the snow in winter
B.He had bitten the master’s children in the leg
C.He felt hot in the house
D.He grew too big for the master to keep
Which is the main topic of this passage?
A.Modem ideas are beginning to influence the Eskimos.
B.Why are the Eskimos able to live in Arctic regions?
C.The Eskimos are adaptable.
D.Eskimos' way of life has not changed very much.
The houses we live in are very __1__. They keep us from being cold in the winter and hot in the summer. In the winter they keep out of the snow. They also keep out the wind. Even if it is blowing outside, we are nice and warm inside. In the summer houses keep the hot sun from us.When it rains, they keep us from getting wet.Houses are also places __2__ we feel safe. People can’ t get at us or our things. Houses give us a place to be together with our families and friends. Mothers and fathers __3__ their children there. The children play there. The family eat and sleep under the same roof.Houses are different in many ways. They are made of different things.Some houses are made of wood. Some are made of stones. Sometimes more than one thing is used to make a house.Houses come in different __4__. Some houses have only one room. Some houses have more than one room. Big buildings found in cities have a great many rooms. They hold many families. The rooms in which each family lives are called an apartment. Houses are different in the ways they are __5__. Houses in tropic countries can be lightly built. In places where it rains much of the time, houses must keep out the water.take care( “注意”,“当心”,“留心”)
(1)__1__
A.expensive
B.important
C.huge
Passage One
Animals have different ways of protecting themselves against wintertime weather. Some animals grow heavy coats of fur or feathers, while others dig into the ground to find a warm wintertime home.
Some animals spend the winter in a deep sleep because by going to sleep they avoid the time of the year when food is scarce and the temperatures are low. Their sleep is known as hibernation.
There is much about hibernation that puzzles scientists. For example, they are wondering how hibernation came into being. Some scientists have explored the possibility that animals release a chemical that starts them hibernating.
One thing that scientists are certain about is that animals hibernate only when it is cold. Hibernation is a seasonal practice.
Some animals that fall into a wintertime sleep are not true hibernators because they spend only a part of the cold season asleep. Bears, for example, can easily be awakened from their winter nap. They are not true hibernators.
Sometimes it is difficult to determine whether a particular animal is a true hibernator. For example, some mice hibernate, but others do not. The same is true of bats. Some of them hibernate. Others do not.
36. Hibernation is a seasonal practice. This means it ______.
A. takes place only during a particular season
B. occurs only during the night
C. is a daily practice
D. only happens when a species becomes over-populated