11.In the United States [among] 60 percent [of the space] on the pages of newspapers [is reserved] for [advertising].

　　答对率：47%

　　答案：a

　　12.Scientists believe that by [altering] the genetic composition of plants it is possible to develop specimens that are [resisting] to [disease] and

　　have [increased] food value.

　　答对率：50%

　　答案：b

　　13.The American anarchist Emma goldman infused her spirited lectures, [publishes],and demonstration [with a] passionate [belief] in the freedom

　　of [the] individual.

　　答对率：36%

　　答案：a

　　14.[Being] the biggest expanse of brackish water [in the] world,the Baltic Sea [is of] special [interesting] to scientists.

　　答对率：44%

　　答案：d

　　15.While studying the [chemistry] [of human body],Dr.Rosalyn Yalow won a Nobel Prize for the research she [conducted on] the [role of] hormones.

　　答对率：37%

　　答案：b

　　16.The early railroads were........the existing arteries of transportation: roads,turnpikes,

　　canals,and other waterways.

　　A.those short lines connected

　　B.short lines that connected

　　C.connected by short lines

　　D.short connecting lines

　　答对率：50%

　　答案：b

　　17.During the flood of 1927,the Red Cross,......out of emergency headquarters in Mississippi,set up temporary shelters for the homeless.

　　A.operates

　　B.is operating

　　C.has operated

　　D.operating

　　答对率：44%

　　答案：d

　　18.Minoru Yamasaki is an American architect [which] works [departed from] the austerity [frequently] associated [with] architecture in the United States after the Second World War.

　　答对率：37%

　　答案：a

　　19.Jane Addams.social worker,authoe,and [spokeswoman] for the peace and women's suffrage [movements],[she received] the Nobel Peace Prize in 1931 for her [humanitarian] achievements.

　　答对率：50%

　　答案：c

　　20.Bromyrite crystals [have] a diamond-like luster and are usually [colorless],but they [dard] to brown when [exposed] to light.

　　答对率：44%

　　答案：c