问两个SAT的语法问题1.In18823therewereonlysevenfemaledoctorspracticinginFrance,whenin1903thenumberrisingto95.A.whenin1903thenumberrisingB.butby1903thenumberhadrisenC.itsnumberrisingin1903D.therein1903th

Question

问两个SAT的语法问题
1.In 18823 there were only seven female doctors practicing in France,【when in 1903 the number rising to 95.】
A.when in 1903 the number rising
B.but by 1903 the number had risen
C.its number rising in 1903
D.there in 1903 the number rose
E.however,in 1903 when the number had risen
Question:为什么选B不选D呢?
2.Some scientists believe that mentally stimulating activities may increase the number of brain cells 【available to replace if any are lost through aging.】A.available to replace if any
B.available to replace any that
Question:A和B的区别是?
注明：以上两个题目【】里的内容均为划线部分

Answer 1

1,第一题是因为前半段已经是这个完整句子了,用but转折也是连接两个具有完整结构的句子.
2,划线划多了吧,我就默认到any截止.if开头的通常为条件从句,或者解释problem,whether之类的（学名叫不上来）.选B,用that是修饰any (cells),说.能够增加脑细胞来取代那些老化死去的（旧）细胞.如果这里用if,那replace后面就没有宾语了.