总结近五年亚洲与北美 托福 考试语法部分试题的基础上，为同学总结出错误率在60%以下的易错难题汇编，希望大家能汲取常见错误原因，从而有效地跳开托福考试中的出题陷阱.

　　1.[Melting] glaciers may [account the] rise [in sea level] that [has taken place] honing this century.
　　答对率：50%
　　答案：b

　　2.Anthropologist jane Goodall [has contributed] a [wealth information] concerning primate behavior [through] her [studies] of chimpanzees.
　　答对率：46%
　　答案：b

　　3.The [discovery] of gold in 1848 [transformed] San Francisco suddenly from a [quiet] port into one of the world s richest and most famous [city].
　　答对率：44%
　　答案： d

　　4.Allan Pinkerton,[founder] of [the famous] detective agency that bears [him] name,directed a Civil War espionage system [behind] Confederate lines.
　　答对率：38%
　　答案：c

　　5.The city of Kalamazoo, Michigan,derives its name from a Native American word……"bubbling springs."

　　A.meant
　　B.meaning
　　C.that is meant
　　D.whose meaning
　　答对率：46%
　　答案：b

　　6.Salt is manufactured in quantities that exceed those of most,……,other commercial chemicals.

　　A.of an not
　　B.not if an are
　　C.are not an
　　D.if not an
　　答对率：49%
　　答案： d

　　7.Contemporary film directors,some of [them] write the scripts for,act in,and [even] produce their own [motion] pictures, are [thereby assuming] ever more control of their art.
　　答对率：43%
　　答案：a

　　8.Petroleum [it is] composed [of] a complex[mixture]
　　of hydrogen and [carbon].
　　答对率：31%
　　答案：a

　　9.The air inside a house or office building often has higher concentrations of contaminants …… heavily polluted outside air.

　　A.than does
　　B.more
　　C.as some that are
　　D.like of
　　答对率：50%
　　答案：a

　　10.Emily Dickinson s garden was a place…… great inspiration for her poems.

　　A.that she drew
　　B.by drawing her
　　C.from which she drew
　　D.drawn from which
　　答对率：50%
　　答案：c