[单项选择]Many apartments have doors with a security window so that one may ______ outside and observe visitors without being seen.


A. peer
B. peek
C. peel
D. pile

[单项选择]Many apartments have doors with a security window so that one may ______ outside and observe visitors without being seen.


A. peer
B. peek
C. peel
D. pile

[单项选择]Tom knocked on the doors of many houses because he liked to visit people.


A. Right.
B. Wrong.
C. Doesn’t say.

[填空题]Pentagon. Many have been held for more than three years and the______.

[单项选择]How many problems have remained unsolved


A. 4.
B. 14.
C. 18.
D. 25.

[单项选择]——How many elephants have you seen —— .
A. None
B. Nothing
C. Nn one
D. No

[单项选择]Many schools have bought computers for their students because of ______.


A. their wide variety
B. their wide use
C. the free choice of computers
D. the free choice of educational programs

[单项选择]How many years have they known each other


A. One year.
B. Ten years.
C. Eleven years.

[单项选择]Researchers in many countries have observed that middle class children as a group are more successful in the educational system than working class children. More of the former, for example, reach college. Professor Basil Bernstein of the University of London has argued that there is a link between social class and educational failure and that this link is language. In a series of papers published from 1958 to 1973 Bernstein has developed a theory of the "structure and process of cultural transmission," or socialization, part of which may be summarized as follows.
One characteristic of many (but not all) working class families is that the status of different members of the family is clearly defined; the authority of the father, for instance, derives from the fact that he is the father. This type of family Bernstein calls positional, and he contrasts it with the person-centered family type, more common (although not omnipresent) in the middle classes. In the latter, status, author
A. background
B. language use
C. status
D. intelligence

[填空题]Many cultures have different ideas about why people catch colds. For example, in the United States, some people think that you can catch cold if your (1) get cold. So, mothers tell little children to wear (2) boots in the winter. In other places, including parts of the Middle East, some people believe that strong winds cause colds. So, on trains and buses, people usually don’t like to sit (3) open windows. In parts of Europe, some people think that wearing wet clothes will give you a cold. They say that after you go (4) , you should quickly put on dry clothes. Today, scientists know that colds are caused by viruses. But the old ideas are still very strong, and many people still follow them to (5) getting ill.Many cultures have different ideas about why people catch colds. For example, in the United States, some people think that you can catch cold if your (1) get cold. So, mothers tell little children to wear (2)