理工类---B级

Air Pollution Cloud Measured on Both Sides of
Pacific


1. The haze of pollution mentioned in the first
paragraph is a cloud


A. of moisture over Calgary, Canada.
B. developing over pacific Ocean.


C. of industrial pollutants.
D. of desert dust and hydrocarbons.


2. one of the Prices's findings (Paragraph2.
about the particles of the air is that


A. they contain more pollutants than normal particles.


B. they move much faster in high altitudes than in low
altitudes.


C. they are finer and lighter than normal particles.


D. their ability to reflect light is much stronger.


3. What did Price not do during her research?


A. She rented a Beech craft.


B. She used her sensing equipmentaboard the Beech craft.


C. She collected samples of pollutants on the Northwest coast for
further tests.


D. She tested quantities of chemicals in the air.


4. According to the last paragraph, which of the
following statements about the two research teams
is true?


A. The two research teams whose findings Price correlates hers with
are based in Asia.


B. Price corrects some inaccurate data provided by the two teams
operating in Asia.


C. Price is working with the two research teams in Japan.


D. The two teams in Asia volunteer to correlate their findings with
Price's.

5.
Which of the statements is closest in meaning to
the sentence ".., we expect that sources in
Europe will contribute less than Asian sources."?


A.
Pollution is expected to be less serious in Europe than in
Asia.



B. Pollution is studied in more depth in Europe than in Asia.



C. Pollutants coming from Europe are not the main source of
pollution in North America.


D.
pollutants coming from Europe are the main source of pollution in
North America.

"Don't Drink Alone"
Gets New Meaning

1. Researchers have found that the risk of cancer
in the mouth and neck is higher with people


A. who drink alcohol outside of meals.


B. who drink alcohol at meals.


C. who never drink alcohol at meals.


D. who drink alcohol at bars and pubs.
2.
Which of the following is NOT the conclusion made
by the researchers about "drinking with meals"?


A. It has a lower risk of cancer than drinking without food.


B. It may also be a cause of cancer.


C. It increases by 20 percent the possibility of cancer in all
sites.


D. It does not eliminatecancer risk at any of the sites.
3.
Approximately how many drinks do the
lowest-intake group average per day?


A. 3 drinks.

B. 8 drinks.


C. 20 drinks.

D. 56 drinks.
4.
Which cancer risk is the lowest among all the
four kinds of cancer mentioned in the passage?


A. Oral cancer.

B. Laryngeal cancer.


C. Pharyngeal cancer.

D. esophageal cancer.
5.
According to the last paragraph, tissue's lower
exposure to alcohol


A. explains why inflammation triggers cancer.


B. accounts for why food can coat digestive-tract tissues.


C. is the reason why food can scrub alcohol off tissues.


D. reduces the risk of laryngeal cancer.

Listening Device Provides Landslide Early
Warning
1. What does "Such natural disasters" in the
first paragraph refer to?

A Sudden, heavy
rainfall.
B
Earthquakes.

C Water
erosion.
D
Landslides.
2. Which of the following statements is true
of landslides?
A
The initialmovement is hard to spot.

B They start
with a movement of a few particles of soil or rock.

C They can be destructive in a
matter of hours or minutes.

D All of the above.
3. Why do researchers develop a new device to
monitor signs of landsides?

A Because the new device can
measure the site directly.

B Because the
new device can be sunk into boreholes or fixed above ground.

C Because the common methods .can cause false
alarms.

D Because the
common methods are useless.
4. Which of the following statements is NOT
true of the device, according to Paragraph 4?

A It is filled in with gravel.

B It consists of a steel pipe.

C It is dropped into a borehole filled in with
gravel.

D It is connected to a sensor on the surface.
5. According to the context, what does the
word "positives" in the fifth paragraph mean?
A
Positive electric
charges.
B
Evidences.
C
Warnings.
D
Predictions.

Putting Plants to Work


1. What does the writer say about plants
concerning solar energy?

A
Plants are the real experts in producing solar energy.

B
Plants have been used to produce solar energy.


C
Plants have been using solar energy for billions of years.


D
Plants have been a source of solar energy.
2.
Why do some scientists study how plants convert
sunlight carbon dioxide, and water into sugars
and starches ?

A
Because they want algae to produce sugars and starches.

B
Because they want green plants to become a new source of
energy.

C
Because they want to turn plant sugars to a new form of energy.

D
Because they want to make photosynthesis more efficient.
3.
According to the fifth paragraph, under what
conditions are algae able to use solar energy to make hydrogen?

A
When there is a lot of oxygen in the air. B When
there is no oxygen in the air.

C
When photosynthesis is taking
place.
D When enough starch is stored.
4.
Researchers have met with difficulties when
trying to make algae produce hydrogen
efficiently.


Which one of the following is one such difficulty？

A
It is not possible to remove sulfate from the environment.

B
It is not possible to work in an airfree environment to produce
hydrogen.

C
It is not easy to make sugars instead of hydrogen.

D
It is too slow for algae to produce hydrogen when the sulfate is
removed.
5.
What is NOT true of algae?

A
They are easy to
grow.
B They can be a very good fuel source.

C They are cheap to
eat.
D They can be used in many ways.

Hurricane Katrina


1. What is the eye of a hurricane?


A. A native
American storm god.


B. A
rotating form of tropical storm that can be 124 to 1240 miles in
diameter.


C. A calm
central region of low pressure between 12 to 60 miles in
diameter.


D. A storm
that can release as much energy as 10,000 nuclear bombs.
2.
Which of the following is NOT the "requirements"
mentioned in the second paragraph?


A. The
tropical waters are warm and calm.


B. The
sea-surface temperature exceeds 27ºC.


C. There are
thunderstorms over warm tropical waters.


D. The
atmosphere surrounding the sea is calm.
3.
Which of the following is the best explanation of
the word "drive" in the third
paragraph?


A. To guide,
control, or direct.