Page220-3 ( Key: E - the number of Blacks ... are...是否应该是 is; 另 the number of Blacks attending college 和 the number of Blacks who are attending college 有什么区别?)
In the last ten year, the dropout rate among Black high school students fell substantially over the pastdecade, while the number of Black who attend college is more tan twice what it was.
A.
B. fell substantially over the past decade, while the nmber of Blacks who attend college is more than twicewhat it was
C. has fallen substantially, while the number of Blacks jattending college has more than doubled
D. has fallen substantially over the past decade, while the number of Blacks attending college is more than twice what it was at that time
E. has fallen substantially over the past decade, while the number of Blacks who are atttending college are more than double what they were
Page 222-7 ( key: B 为什么不能选D. aim at doing sth 地用法在字典上也有啊??反而是aim to do没有)
Violence in the stands at soccer matches has gotten so pronounced in several European countries that some stadiums have adopted new rules that aim to indentify fans of visting teams and that seat them in a separate area.
A.
B.to idnetify fans of visiting teams and seat them
C. to identify fans of visiting teams for seating
D. at identifying fans of visiting teams so as to seat them
E. at identifying fans of visiting teams and that seat them
Page233-9 ( key: E 题目不难,可正确句意理解不好。句末的with but 哪里修饰哪里搞不清楚)
The first trenches that were cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence for centrally administrered complex societies in northern regions of the Middle East that were arising simultaneously with but independently of the more celebrated city-states of southern Mesopotamia, in what is now southern Iraq.
A.
B. that were cut into a 500-acre site at Tell Hamoukar, Syria, yields strong evidence that centrally administered complex societies in norhtern regions of the Middle East were arising simultaneously with but also
C.having been cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence that centrally administered complex societies in northern regions of the Middle East wre arising simultaneously but
D. cut into a 500-acre site at Tell Hamoukar, Syria, yields strong evidence of centrally administered complex societies in northern regions of the Middle East arising simultaneously but also
E. cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence that centrally adnimistered complex societies in northern regions of the Middle East arose simultaneously with but
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