[填空题]We can cut down global warming pollution by increasing our reliance on renewable energy source such as______.

[填空题]A-- global warming B -- air pollution
C -- littering D -- illegal hunting
E -- greenhouse effect F -- the polar icecaps melt
G -- acid rain H -- forest coverage
I -- sandstorm/dust storm J -- over-fishing
K -- destruction of natural habitats L- desertification
M -- to dump poisonous/harmful substances
N -- solar energy O -- renewable sources
P -- tropical rainforest Q -- bio-diversity
R -- economic growth and environmental conservation
S -- severe climate change T -- waste-water treatment plant

( ) 温室效应 ( ) 酸雨

[填空题]You can cut things with it.

[填空题]People can cut things into pieces with it.

[单项选择]

Believe it or not，optical illusion can cut highway crashes.
Japan is a case in point．It has reduced automobile crashes on some roads by Rearly 75 percent using a simple optical illusion．Butst．ripes,called chevrons(人字形)，painted on ther rads make drivers think that they are driving faster than they really are，and thus drivers slow down.
Now the American Automobile Association Foundation for Traffic Safety in Washington D．C. is planning t。repeat Japan’s success．Starting next year，the foundati。n will paint cheyrons and。ther pattems of stripes on selected roads around the country to test how well the patterns reduce highway erashes．
Excessive(too great)speed plays a major role in as much as one fifth of all fatal traffic accidents， according to the foundation．To help reduce those accidents，the foundation will conduct its tests in areas where speed-related hazards(danger)are the greatest curves，exit slopes，traffic circles，and bridges．
Some studies
A. thev should avoid speed．related hazards
B. they are driving in the wrong lane
C. they should slow down their speed
D. they are coming near to the speed limit