[填空题]"Accidental" discoveries seem to have made by chance but there has to be an observant person present who ______.

[填空题]"Accidental" discoveries seem to have made by chance but there has to be an observant person present who ______.

[单项选择]Physicists have made new discoveries that challenge our（）theories of the universe.
A. existed
B. adapted
C. accepted
D. established

[简答题]Recent developments in astronomy have made is possible to detect planets in our own Milky Way and in other galaxies. This is a major achievement because, in relative terms, planets are very small and do not emit light. Finding planets is proving hard enough, but finding life on Earth will prove infinitely more difficult. The first question to answer is whether a planet can actually support life. In our own solar system, for example, Venus is far too hot and Mars is far too cold to support life. Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve. Whether a planet can support life depends on the size and brightness of its star, that is its "sun". Imagine a star up to twenty times larger, brighter and hotter than our own sun. A planet would have to be a very long way from it to be capable of supporting life.

[单项选择]In Australia the Asians have made their influence ______in businesses, large and small.
A. feeling
B. feel
C. felt
D. to be felt

[填空题]Advances in medical technology have made it possible for people(live) _____ longer．

[简答题]

Directions:
You have made an appointment with Prof. Li, but failed to keep it. Write a letter to your teacher to
1) apologize for your failure to keep the appointment;
2) explain your reason to your teacher;
3) express your wish to make another appointment.
You should write about 100 words on ANSWER SHEET 2.
Do not sign your own name at the end of the letter. Use "Li Ming" instead.

[填空题]A word of encouragement might have made me respect rather than (hate) ______ him.

[单项选择]Science and new technology have made such rapid progress in agriculture that modern machines can do almost all farm work, and therefore have made it possible for farmers to pro- duce more food on the same amount of land. When people live in plenty, vegetables and fruits are becoming more and more popular. As a result more and more vegetables and fruits are in greater need.
Can orchard workers harvest fruits with machines as farmers to crops Yes, they can. Scientists have already invented many different fruit-harvesting machines. Now, let’s take cherry picking machine for example. The cherry-picking machine first shakes a cherry tree, then catches cherries in heavy sheets and pushes the fruit along belts. The cherries are then dropped into huge containers of water, in which they are washed clean, and look fresh and pretty when they are placed into plastic boxes which come along the belt one after another. All this work is finished within three minutes. In this way two orchard worke
A. When people have more money than is needed...
B. When people have quite a large amount of wealth...
C. When people no longer worry about not having enough for their daily needs of food or clothing ...
D. When people need a large number of daily needs...