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2. Read the text and choose the best answer.
The naturalment includes all natural (1). that are necessary for life: the air,
the oceans, the sun and the land. Because they are vital for life, these sourcest be
protected from pollution and conserved. Ecologists study their importance and how to use
(2)
According to ecologists, resources are divided into two groups (3) .... and non-
renewable. When a resource is used, it (4) some time to replace it. If the resource can be
replaced quickly and easily, it is called reseable. If it cannot be replaced quickly and easily.
it is called non-renewable. For example, grass for animals is (5) renewable resource. When
coms eat the grass, the resource is tied. If the soil is fertilized and protected more mass (5)
Coal, (7) is non-renewable because it takes millions of years to mice coal. All fossal
1. A. careful
3. A.
4.Ata
5.A.the
6. A. grom
7.A.
S.Af
rable resources
B.
B. car
B.D
B. spand
B.
B. will grom
B. therefore
B.
D. bety
D. caring
C. source
C. care
C.
D.
C. mica
C.m
D. to tak
D.x
C. p
D.
C. althoug
C. ail
D. bom
D. solar argy
3. Read the passage and answer the questions
It makes you about 16 hours to travel from New York to Bang Beside, you also have to wait
at the airport and sometimes you have to transfer onto a dit plana. If you add all of
that time, the trip will take at least 20 hours. But in the future strip might only take 2
hours. Nowadays, a prate company is developing something called ET3 which stands for
"evacuated tube transport technology. Here is how it works. A tube goes all way from New
York to Bang The tube is only afters wide Capsules use more through the be. Six
people can one capoule. The capsules use electricity instead of gasoline. The capsules com
anal about 6.500 Inmates per hour. That is much faster than airplane-most modern
Airplanes usually only y at about 500 ilometers per hour
So how is this possible? How can these capsules travel so fast? The answer is that there is no
air inside the nibe. When airplanes fly, they have to more through the air. The air slows the
airplanes down Because there is no air in the ET3 tubes the capsules are able to move at
very high speed. Besides, the capsules are quite light. They only weigh 153 ilograms
It is eating to think of how ET3 will change in the future. Maybe someday, you will be able
o have lunch in New York and diner in Bang
1. How long will it take to travel from New York to Beijing if you travel by ET3?
What does ETS stand for?
3. What does ET3 use to mengine?
4. How far does the most modem airplane usually By in one hour?
5. Why does ET3 calf