leaving
to leave
to be left
being left
第1题:
Passage Four
The atmosphere and oceans are not the only parts of the environment being damaged. Rain forests are being quickly destroyed as well, and their survival is questionable. E. O. Wilson, a biologist at Harvard, calls the depletion(枯竭、耗尽)of rain forest areas "the greatest extinction since the end of the age of dinosaurs(恐龙)."
Unlike some environmental issues, rain forests' depletion has fortunately received significant public and media's attention. Despite the opposition to the cutting down of rain forests, the problem continues. Every year, Brazil chops down an area of forests the size of the state of Nebraska. In addition to the Amazon's rain forests, many other forests are being cut down as well.: In Indonesia, Zaire, Papua-new Guinea, Malaysia, Burme, the Philippines, Peru, Colombia, Bolivia, and Venezuela, rain forests that were once great have been lost.
According to some estimates, 50 million acres of rain forest are cut down every year. The United Nations says the figure is closer to 17 million acres. The World Wildlife Fund says that every minute,25 to 50 acres are cut down or burnt to the ground.
The world's growing population has been a primary reason of rain forests' destruction. More people need land to live on and wood products to consume. Limiting population growth may be the first in a series of steps that would alleviate the destruction of the rain forests.
48. In the opinion of the author, ______are being destroyed terribly at present.
A. the oceans
B. the atmosphere
C. the rain forests
D. all the above
此题为细节题。从文章的第一段可以看到,作者认为现在大气层、海洋和热带雨林都面临毁灭的威胁。
第2题:
A、will leave
B、is to leave
C、is to be left
D、has left
第3题:
When ( ) the airport, she waved again and again to us.
A、leaving
B、left
C、having left
D、having been leaving
第4题:
Paul will leave for London next Tuesday. -But unless he( ) next Monday, he’ll be late.
A. leaves
B. will leave
C. left
D. has left
第5题:
I felt somewhat disappointed and _______, until something occurred which attracted my attention.
A、leaving
B、was about to leave
C、left
D、had been leaving
第6题:
His parents _______ the US for ten years.
A、have been
B、have gone to
C、have been to
D、have been in
第7题:
Which statement about general average is TRUE ________.
A.Damage to a ship must have been incurred while the ship and/or its machinery was being used for its intended purpose
B.Property must have been sacrificed or an expenditure of money incurred
C.The loss or damage to deck cargo due to heavy weather constitutes general average
D.Of the ship,the freight,and the cargo interests,only one need be involved
第8题:
第9题:
第10题:
The sailors should do unmooring work when ()the harbor.
第11题:
Which of the following is a sign that a computer has been infected by a worm?()
第12题:
to stop
to have stopped
to have been stopped
to have been stopping
第13题:
Which the following statements is TRUE according to the passage?
A. The United Nations says about 50 million acres of rain forests are cut down every year.
B. Luckily people and the mass media all paid special attention to the depletion of rain forests.
C. The author thought the oceans' survival is questionable.
D. People have stopped cutting down rain forests because of the opposition of most people.
此题为三误一正的细节题。见第二段的第一句Unlike some environmental issues,rain forests’depletion has fortunately received significant public and media attention。
第14题:
A、to not have left
B、to have not left
C、not to have left
D、not have left
第15题:
_________the heavy rain, we stayed at home.
A: But for
B: Due to
C: Owing to
D: As to
第16题:
A. of
B. in
C. for
D. with
第17题:
There are three days ________ before the task is finished.
A、leave
B、to leave
C、left
D、leaving
第18题:
Which of the following would be considered downflooding on a fishing vessel as defined in regulation?
A.Vessel heels until water enters a hatch
B.Vessel in collision floods through a damaged area above the waterline
C.Vessel takes on water due to the hatches being left open in heavy rain
D.Vessel takes on water by the propeller shaft due to failure of the stern gland
第19题:
第20题:
第21题:
第22题:
We were all surprised when he made it clear that he()office soon.
第23题:
Vessel heels until water enters a hatch
Vessel in collision floods through a damaged area above the waterline
Vessel takes on water due to the hatches being left open in heavy rain
Vessel takes on water by the propeller shaft due to failure of the stern gland