In the atmosphere, carbon dioxide allows the sun’s rays to enter but prevents the heat from escaping．According to a weather expert’s prediction, the atmosphere will be warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate．If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several meters and severely flooding coastal cities．Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere．
In the past, concern about a man－made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet．But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming, in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels．Satellite pictures show that large areas of Antarctic ice are already disappearing．The evidence suggests that a warming has taken place．This fits the theory that carbon dioxide warms the earth．
However, most of the fuel is burnt in the northern part of the earth, where temperatures seem to be falling．Scientists conclude, therefore, that up to now natural influences on the weather have exceeded those caused by man．The question is：Which natural cause has most effect on the weather?
One possibility is the behavior of the sun．Astronomers at one research station have studied the hot spots and “cold” spots, that is, the relatively less hot spots, on the sun．This seems to have a greater effect on the distribution of the earth’s atmospheric pressure, and consequently on wind circulation(循环)．The sun is also variable(可变的)over a long term．Its heat output(输出)goes up and down in cycles．The latest trend being downward is on the way．But that is only a imagination．
(1)
The carbon dioxide in the atmosphere would _________．
[ ]
A．
prevent the sun’s rays from reaching the earth’s surface
B．
mean a warming up in the Arctic
C．
account for great changes in the climate
D．
raise the temperature of the earth’s surface
(2)
The article was written to explain _________．
[ ]
A．
the greenhouse effect
B．
the solar effects on the earth
C．
the solar weather
D．
the causes affecting weather
(3)
Although the fuel is greater in the northern part, temperatures there seem to be falling．This is _________．
[ ]
A．
mainly because the carbon dioxide is rising
B．
possibly because the ice caps in the poles are melting
If you have a watch, don’t repair it! I know it 1 ．Once I had a beautiful watch．And this watch 2 perfect time．But one night it happened that I forgot to 3 it up．Next morning I went to a watchmaker as I wanted my perfect watch to 4 by the exact time．The watchmaker examined my watch and said：“The regulator(校准器)is to be pushed up 5 your watch is four minutes 6 ．”
I tried to stop him, tried to 7 him understand that my watch kept perfect time, but he did not listen to me and pushed the regulator．
My beautiful watch began to gain time．It 8 faster and faster day by day．By the end of the second month it 9 all the clocks and watches of the town far behind．
What did I have to do? To take it to another watchmaker to be regulated．I expected him to regulate the watch immediately 10 he asked me to come in a week’s time．When at last I took my watch from him it began to 11 down．And I began to be late for trains, business appointments and even missed my dinners．
Now I went to 12 watchmaker．While I waited for him to repair my poor watch, he 13 it to pieces and said that he could finish this work 14 three or four days．I could do nothing but 15 ．That time my watch went for half a day and then stopped．
So I kept 16 my watch from one watchmaker to another for a considerable period of time．
And as a result of it the cleverest man in the world could not 17 the time by my watch．The thing was getting 18 ．My watch had 19 two hundred dollars originally but I paid for repairs more than two hundred．At last I decided to buy 20 watch, which I did．
(1)
[ ]
A．
for reality
B．
for truth
C．
for certain
D．
for certainty
(2)
[ ]
A．
kept
B．
told
C．
observed
D．
struck
(3)
[ ]
A．
turn
B．
wind
C．
pick
D．
put
(4)
[ ]
A．
be turned
B．
be taken
C．
be put
D．
be set
(5)
[ ]
A．
as
B．
as if
C．
when
D．
if
(6)
[ ]
A．
fast
B．
slowly
C．
faster
D．
slow
(7)
[ ]
A．
get
B．
persuade
C．
make
D．
explain
(8)
[ ]
A．
gained
B．
lost
C．
went
D．
won
(9)
[ ]
A．
had remained
B．
had left
C．
had stayed
D．
had fallen
(10)
[ ]
A．
however
B．
and
C．
but
D．
therefore
(11)
[ ]
A．
go
B．
walk
C．
slow
D．
take
(12)
[ ]
A．
the third
B．
the second
C．
the first
D．
the fourth
(13)
[ ]
A．
broke
B．
took
C．
tore
D．
cut
(14)
[ ]
A．
after
B．
before
C．
over
D．
in
(15)
[ ]
A．
to agree
B．
agree
C．
agreeing
D．
agreed
(16)
[ ]
A．
taking
B．
bringing
C．
carrying
D．
fetching
(17)
[ ]
A．
recognize
B．
tell
C．
know
D．
understand
(18)
[ ]
A．
seriously
B．
pleasant
C．
badly
D．
serious
(19)
[ ]
A．
spent
B．
took
C．
cost
D．
paid
(20)
[ ]
A．
another
B．
the other
C．
one
D．
one more
阅读理解
When someone has deeply hurt you, it can be extremely difficult to let go of your anger．But forgiveness is possible and it can be surprisingly helpful to your physical and mental health．Indeed, research has shown that people who forgive report more energy, better appetite(胃口)and better sleep patterns．“People who forgive show less anger and more hopefulness,”says Dr Frederic Luskin, who wrote the book Forgive for Good“So it can help save on the wear and tear on, our system and allow people to feel more energetic”
So when someone has hurt you, calm yourself first．Take a couple of breaths and think of something that gives you pleasure：a beautiful scene in nature, someone you love Don’t wait for an apology“Many times the person who hurt you may never think of apologizing”says Dr Luskin“They may have wanted to hurt you or they just don’t see things the same way．So if you wait for people to apologize, you could be waiting a very long time．”Keep in mind that forgiveness does not necessarily mean accepting the action of the person who upset you．Mentally going over your hurt gives power to the person who brought you pain．Instead, learn to look for the love, beauty and kindness around you．Finally, try to see things from the other person’s perspective(视角)．You may realize that he or she－was acting out of ignorance(无知)，fear－even love．To gain perspective, you may want to write a letter to yourself from that person’s point of view．
(1)
The text is mainly written to explain ________．
[ ]
A．
how to keep yourself from being hurt．
B．
how to stay mentally healthy．
C．
how and when to remain calm．
D．
why and how to pardon others
(2)
According to the writer, what is the right way to calm down after being hurt?
[ ]
A．
Try to figure out why you get hurt．
B．
Write a letter to the person who hurt you．
C．
Persuade yourself to accept what others have done to you．
D．
Think about pleasant things and forget about the hurt
(3)
Dr Luskin advises us not to wait for an apology after being hurt because ________
[ ]
A．
we are not patient enough
B．
we’d feel worse accepting others’apology．
C．
people seldom want to apologize
D．
people don’t mean it when they apologize．
阅读理解
In the atmosphere, carbon dioxide acts rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun's rays to enter but prevents the heat from escaping．
According to a weather expert' s prediction, the atmosphere will be 3℃warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate．If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several metres and severely flooding coastal cities．Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere(北半球), possibly resulting in an alteration of the earth's chief food growing zones．
In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet．But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming, in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels．
Satellite pictures show that large areas of Antarctic ice are already disappearing．The evidence available suggests that a warming has taken place．This fits the theory that carbon dioxide warms the earth．
However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling．Scientists conclude , therefore, that up to now natural influences on the weather have gone beyond those caused by man．The question is：Which natural cause has most effect on the weather?
One possibility is the variable behavior of the sun．Astronomers at one research station have studied the hot spots and "cold" spots(that is, the relatively less hot spots)on the sun．As the sun rotates(使旋转), every 27.5 days, it presents hotter or "colder" faces to the earth, and different aspects to different parts of the earth．This seems to have a considerable effect on the distribution of the earth's atmospheric pressure, and consequently on wind circulation．The sun is also changeable over a long term：its heat output goes up and down in cycles, the latest trend being downward．
Scientists are now finding shared relations between models of solar weather interactions and the actual climate over many thousands of years, including the last Ice Age．The problem is that the models are predicting that the world should be entering a new Ice Age and it is not．One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia(惯性)of the earth's climate．If this is right, the warming effect of carbon dioxide might thus be serving as a useful opposed balance to the sun's fading heat．
(1)
It can be concluded that a concentration of carbon dioxide in the atmosphere would ________．
[ ]
A．
mean a warming-up in the Antarctic
B．
raise the temperature of the earth' s surface
C．
prevent the sun's rays from reaching the earth's surface
D．
explain the cause of great changes in the climate in the northern hemisphere
(2)
The article was written to explain ________．
[ ]
A．
the greenhouse effect
B．
the solar effects on the earth
C．
the causes affecting weather
D．
the models of solar-weather interactions
(3)
Although the fuel consumption is greater in the northern hemisphere, temperatures there seem to be falling．This is ________．
[ ]
A．
mainly because the levels of carbon dioxide are rising
B．
partly due to changes in the output of solar energy
C．
possibly because the ice caps in the poles are melting
D．
only due to the effect of the inertia of the earth' s climate
(4)
On the basis of their models, scientists believe the opinion that ________．
[ ]
A．
the climate of the world should be becoming cooler
B．
the new Ice Age will be delayed by the greenhouse effect
C．
the man-made warming effect helps to increase the solar effects
D．
it will take thousands of years for the inertia of the earth's climate to take effect
(5)
If the assumption about the delay of a new Ice age is correct, ________．
[ ]
A．
ice would soon cover the northern hemisphere
B．
the greenhouse effect could work in favor of the earth
C．
the best way to overcome the cooling effect would be to burn more fuels
D．
the increased levels of carbon dioxide in the atmosphere could warm up the earth even more quickly
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