[单项选择]Why can we think of the asteroid 65 million years ago as one of our lucky stars

[单项选择]Why can we hardly depend entirely on foreign investment for support
A. Because the amount is too small to satisfy our needs.
B. Because governments are not interested in investing abroad.
C. Because the political situation of a government influences overseas investment policy.
D. Because foreign investments usually act according to international convention.

[单项选择]Why can' t we provide as many houses as needed


A. Because we cannot make the choice.
B. Because we do not have enough resources.
C. Because we do not have a free housing market.
D. Because education is more important than housing.

[单项选择]Why can't we divide film into various elements for analysis
A. Because these elements are interwoven with each other and cannot keep be separated without failing to appreciate a film as a whole.
B. Because films cannot be written down and it is inconvenient to analyse them.
C. Because films elements are too complicated.
D. Because films need not to be analysed in detail.

[单项选择]Why do we measure the distance in light-years instead of miles
A. Units of light-years sound better.
B. Using light-years reduced the number of figures used.
C. We used to measure distance in light-years long ago.
D. We do not make mistakes when we use light-years.

[单项选择]According to Brigid, why can't some children do well in school examinations


A. They don’t have proper education.
B. They don’t have enough encouragement.
C. Their parents are not responsible.
D. They are not good with words and numbers.

[单项选择]

When we think about happiness, we usually think of something extraordinary, a peak of great delight--and those peaks seem to get rarer the older we get.
For a child, happiness has a magical quality. I remember making hide-outs in newly cut hay, playing cops and robbers in the woods, getting a speaking part in the school play. Of course, kids also experience lows, but their delight at such peaks of pleasure as winning a race or getting a new bike is unreserved.
For teenagers, or people under twenty, the concept of happiness changes. Suddenly it’ s conditional on such things as excitement, love, and popularity. I can still feel the agony of not being invited to a party that almost everyone else was going to. But I also recall the great happiness of being invited at another event to dance with a very handsome young man.
In adulthood the things that bring great joy--birth, love, marriage--also bring responsibility and the risk of loss. Love may not last,
A. think of something extraordinary
B. experience delight at an old age
C. feel the magic quality of pleasure
D. enjoy what one has at the moment

[单项选择]It will be a few years before we can see electronic book for sale because ______.

[单项选择]We don’t think we can put the business through ______ you revise your terms and conditions.( )
A. unless
B. expect
C. only if
D. in addition

[单项选择]We have to think very carefully before we take any action, because it's a very {{U}}serious{{/U}} situation we have encountered.
A. ideal
B. favourable
C. good
D. severe