[填空题][A] They lack accurate information and prior experience.
[B] They copy the actions of their parents.
[C] They want to test whether parents will enforce rules.
[D] They are held to expectations that are beyond their developmental levels.
[E] They want to assert themselves and their independence.
[F] They experience different sets of expectations between school and home.
One of the most common expressions parents can be heard saying is, "I don’t understand why he’s/ she’s doing that." There are some very common reasons why children misbehave. It is extremely useful for parents to know these because if they can pinpoint the root cause of the misbehavior, they can be more successful at reducing it.
41. ______
Children’s main job is to figure out how their complex world works. In order to master the things they need to at each developmental level they will test their parents. They are literally trying to see where the boundaries are, or, if they exist

[填空题][A] They lack accurate information and prior experience.
[B] They copy the actions of their parents.
[C] They want to test whether parents will enforce rules.
[D] They are held to expectations that are beyond their developmental levels.
[E] They want to assert themselves and their independence.
[F] They experience different sets of expectations between school and home.
One of the most common expressions parents can be heard saying is, "I don’t understand why he’s/ she’s doing that." There are some very common reasons why children misbehave. It is extremely useful for parents to know these because if they can pinpoint the root cause of the misbehavior, they can be more successful at reducing it.
41. ______
Children’s main job is to figure out how their complex world works. In order to master the things they need to at each developmental level they will test their parents. They are literally trying to see where the boundaries are, or, if they exist

[填空题]At the international conference, the Chinese expert gave a report on world economy based on his recent investigation.

[单项选择]Careful testing is necessary before any more experiments can continue with the exploring submarine.
A. needful
B. in need of
C. necessity
D. of necessity

[填空题]Freud believed that in childhood some people experience deep feelings they arc ashamed of and these feelings often fade away into the unconscious mind, but may return in dreams in later life.

[填空题]Contrary to the prediction of some financial experts, ______(经济正在萎缩而不是在增长).

[简答题]1.Compare and contrast knowledge gained from experience with knowledge gained from books．
2.Explain which source is more important．

[单项选择]Everyone must have had at least one personal experience with a computer error by this time. Bank balances are suddenly reported to have jumped from $ 379 into the millions, appeals for charitable contributions are mailed over and over to people with crazy sounding names at your address, department stores send the wrong bills, utility companies write that they’re turning everything off, that sort of thing. If you manage to get in touch With someone and complain, you then get instantaneously typed, guilty letters from the same computer, saying, "Our computer was in error, and an adjustment is being made in your account."
These are supposed to be the sheerest, blindest accidents. Mistakes are not believed to be the normal behavior of a good machine. If things go wrong, it must be a personal, human error, the result of fingering, tampering a button getting stuck, someone hitting the wrong key. The computer, at its normal best, is infallible.
I wonder whether this can be true. Aft