第1题：
第2题：
A prosperity that had never been seen before appears in the countryside.
The idea that you can do this work well without thinking is quite wrong.
It is true that he has made a very important discovery in chemistry.
His suggestion is that we should keep moving forward without hesitation.
第3题：
the way sleep deprivation affects health.
the link between sleep and heart diseases.
the hormones and chemicals changes in the body.
the importance of sleep for good health.
第4题：
第5题：
that
which
whom
whose
第6题：
Foreign visitors in the US.
Foreign investors.
Exporters of America.
American visitors to other countries.
第7题：
第8题：
第9题：
第10题：
enlightened
cultivated
qualified
nourished