题目内容
（请给出正确答案）
The reason why colonists will probably live longer is that ________.
A．their hearts will suffer less strain than on the earth
B．they live in a less crowded and less polluted world
C．the days and nights on Venus are much longer than on the earth
D．the life on Venus will be more comfortable than on the earth
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更多“The reason why colonists will …”相关的问题
However, we Americans need to become more (4)_____ about the effects those pesticides on our food. More (5)_____, we need to think about what new (6)_____ is necessary to protect ourselves from a (7)_____ too rich in Pesticide residue. If we don't demand greater (8)_____ on pesticide use, we may be surprised, dismayed, and (9)_____ horrified by the consequence of its use.
On the most obvious level, farm workers who continue to use the pesticides (10)_____ their present rate will (11)_____ serious diseases. It's no (12)_____ that farmers (13)_____ to herbicides have a six times greater risk of getting cancer. (14)_____, children who live in homes where pesticides are used have an increased chance of getting childhood leukemia(白血病).
But the farmers are not the only ones (15)_____ risk. Consumers may also suffer serious side effects from daily (16)_____ of foods tainted(污染) by pesticides. Although scientists have yet to prove the link (17)_____, they are concerned that pesticide use may be one reason for the startling increase in various forms of cancer like breast and colon(结肠) cancers.
We need new legislation that (18)_____ stricter standards governing pesticide residues in food. Much of the current legislation is based on ignorance. Simply (19)_____, we allow high levels of carcinogens in our food because we don't know for sure that they do cause cancer in humans. Yet, why should we take the risk？ If there's a chance that a pesticide causes cancer, then it should be (20)_____ from use.
A．In spite of
B．Thanks to
C．Given
D．Provided
The reason why + 句子 ~~~ is that + 句子 (...的原因是...)
Nobody really knows the reason why we sleep.
A．Y
B．N
C．NG
He is opposed (to) the project (for the reason) why it is not (feasible) (for the time being).
A．to
B．for the reason
C．feasible
D．for the time being
Another reason why small countries are less involved in high-tech markets is that ______.
A．laziness
B．less creativity
C．the transportation costs of low-tech products
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