[单项选择]The experts' study on the problem of erosion can ______


A. warn people whose homes are in danger
B. provide an effective way to slow it down
C. help to prevent it from worsening
D. lead to its eventual solution

[单项选择]The experts study on the problem of erosion can______.


A. warn people whose homes are in danger
B. provide an effective way to slow it down
C. help to its eventual solution
D. lead to its eventual solution

[单项选择]Complicated as seems the problem, it can be solved in only ten minutes with an electronic computer.（）
A. 尽管这个问题看起来很复杂，但它只能用计算机在十分钟之内解决。
B. 虽然问题似乎很复杂，但用计算机十分钟就能解决。
C. 因为这个问题很复杂，用计算机解决它需十分钟。
D. 用计算机解决复杂的问题只需十分钟。

[单项选择]

Experts say children can begin learning a second language in preschool, and should begin be- fore the age of ten to take advantage of young children’s natural ability to acquire language. This advantage is lost by the time most children encounter a foreign language in the classroom, in middle school or high school.
Dr, Noble Goss, an assistant professor of Spanish’ and German at Harding University in Arkansas, says, as a father of bilingual (双语的) children (My wife is Mexican), I know that not only it is easy for children m learn one or more languages, but they have an amazing way of separating them out more successfully than you would think.
If a child hears two languages early, he accepts both equally. But if given a chance to speak both, can they be fluent in both
Not everyone agrees that early childhood is the only time to start a language, however. Reeves, the chairman and founder of the Center for Performance Assessment in Denver,
A. children have a special talent to learn a language
B. it will take a very long time to master a language
C. the linguistic ability will be weakened as one grows up
D. children have all amazing way to separate two languages