GWD 四语法1-3,8,16,39

3.For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle.

A.each a roof of poles and arrowweed

B.each a roof of poles and arrowweed that are being

C.with each being a roof of poles and arrowweed

D.with roofs of poles and arrowweed to be

E.with roofs of poles and arrowweed that are

为什么选A呢?arrowweed是什么词性?

8.Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system’s ability to deal with all other pollutants.

A.an especially serious pollutant because it diminishes the respiratory system’s ability to deal
 B.an especially serious pollutant because of diminishing the respiratory system’s capability of dealing

C.an especially serious pollutant because it diminishes the capability of  the respiratory system in dealing

D.a specially serious pollutant because it diminishes the capability of  the respiratory system to deal

E.a specially serious pollutant because of diminishing the respiratory system’s ability to deal

我选C,答案是A,想不通,我认为system’s ability 错了,无生命的东西不是不能加'S吗?

16.While digging in the Egyptian desert, huge fossil bones have been found by paleontologists, which appears to have been the second most massive dinosaur that ever lived.

A.huge fossil bones have been found by paleontologists, which appears to have been

B.huge fossil bones have been found by paleontologists, which appear to be from
C.it appears that paleontologists have found huge fossil bones that are from.

D.paleontologists have found huge fossil bones from what appears to be

E.paleontologists have found huge fossil bones, which are from what appear to be

答案是D,如果把E中的appear 改为appears是不是也是对的?

答案是D,如果把E中的appear 改为appears是不是也是对的?

39.In Japan, a government advisory committee called for the breakup of Nippon Telephone and Telegraph Company, the largest telephone company in the world, so it would be two local phone companies and one long-distance provider.