热荐：托福语法考点和试题讲解(1)
2.Her work in genetics won United States scientist Barbara McClintock ---- - in 1983.
(A) was the Nobel Prize
(B) the Nobel Prize was
(C) the Nobel Prize
(D) for the Nobel Prize
选c(双宾语)
大家要注意双宾语的考法。动词后面直接接两个名词。而且看题干,已经有一个谓语动词,除非要填的部分中有从句引导词,否则不可出现BE动词,排除A.B.而D又明显错误,因 为Nobel Prize为B.M的双宾语。
参考译文：美国科学家B.M.在基因方面的研究工作为她自己赢得了1983年的诺贝尔奖.
这题可以多读两遍，有助于大家培养正确的语感
3.--- usually thought to end in northern New Mexico, the Rocky Mountains really extend southward to the frontier of Mexico.
(A) Despite
(B) To be
(C) While
(D) However 选c(连词)
分析：A.despite 为介词,后面要加名词形式的东东,e.g.Despite usually being thought to end in ...而这里的thought 是过去分词,不是动名词,所以不对。
参考译文：洛基山脉通常被认为是延伸到新墨西哥州的北边,但它实际上一直向南延伸到了墨西哥的边界。
6. Nebraska has floods in some years, _____.
(A) in others drought
(B) droughts are others
(C) while other droughts
(D) others in drought
选a(省略的用法)
省略是托福考试的一个难点。做这部分题需要我们对句子结构和省略方式有很好地掌握此题，原句为：Nebraska has floods in some years, and Nebraska has drought 。in other years. 并列从句省略，然后时间状语提前。
13.The lower ___ in a room, the more slowly our eyes focus.
(A) the level of lighting
(B) light level
(C) leveling of light
选a
一道极经典的题！这是一个the more,the more的考题，单考法狠刁。根据语感可以把题做对，下面我从语法上讲一下这道题the more,the more本身是一个倒装。如此句，正确的语序应该是if the level of lighting is lower in a room,our eyes focus more slowly，将lower和slowly提前。所以说，争议选项b是不对的。还原之后来看，b中单数可数名词level裸体了，所以不对。