[填空题](see) ______ from the hill, our school looks more beautiful.

[填空题](see)（）from the hill, our school looks more beautiful.

[填空题](see) ______ from the hill, our school looks more beautiful.

[填空题](see) ______ from the hill, the town looks beautiful.

[填空题](see) ______ from the hill, we found the park very beautiful.

[填空题](See)（）from the top of the hill, the village looks beautiful and quiet.

[填空题](see) （　）from space, our earth, with water covering 70% of its surface, appears as a "blue planet".

[简答题]Our life is nothing more than our time. To kill time is therefore a form of suicide. We are shocked when we think of death, and we spare no pains, no trouble, and no expense to preserve life. But we are too often indifferent to the loss of an hour or of a day, forgetting that our life is the sum total of the days and of the hours we live. A day or an hour wasted is therefore so much life forfeited. Our life is a brief span measuring some seventy or eighty years in all. But nearly one third of this has to be spent in sleep; some years have to be spent over our meals; some in making journeys on land and voyages by sea; some in merrymaking; some in watching over the sickbeds of our nearest and dearest relatives. Now if all these years were to be reduced from the term over which our life extends, we shall find about twenty or thirty years at our disposal for active work. Whoever remembers this can never willingly waste a single moment of his life.

[填空题](See) ______ from the top of the hill, the village is very beautiful.

[填空题](see)______from the top of the hill, we found the village very attractive.

[填空题](see) ______ from the top of the hill, we found the village very attractive.

[填空题]Fred: Shall we go and see our physics teacher Nancy:______

[填空题](See) _________from the top of the hill, the village is very beautiful.

[填空题]We can see with our

[单项选择]Scientists are learning more about our need for sleep. Most people sleep (26) eight hours each night. (27) people sleep more than (28) and others sleep as (29) as two or three hours each night. Scientists do not know exactly (30) some people sleep more than others. Dr. Ernest Hartman has a (an) (31) about this. He believes that the (32) of sleep depends on how a person (33) problems. He said people who need only a few (34) sleep usually are people who have much energy and make good use of (35) to get their work to be done quickly. (36) he said many people who sleep longer than normal do creative work and seem to need (37) dreaming time to find solution (38) emotional problems. Some scientists agree (39) this idea and others dispute.
To determine the (40) of the lack of sleep, scientists have put (41) through a set of psychological and pe
A. strengthened
B. enforced
C. reduced
D. weakened