7.       in startling detail: 以令人吃惊的细节

8.       the floor framing: 楼板骨架

9.       allowing floors that were pierced by tons of falling debris to remain intact.: 那些被成吨的残片击穿的楼板得以完整无缺。

练习：

1.       The question raised in the first paragraph is one

A)       that was asked by structural engineers a month age.

B)         that is too difficult for structural engineers to answer even now.

C)       that was never thought of before the terrorist attack.

D)       that terrorists are eager to find a solution to.

2.       The project funded by the National Science Foundation

A)       was first proposed by some engineers at UB.

B)        took about two days to complete.

C)       was to investigate the damage caused by the terrorist attack.

D)       was to find out why some buildings could survive the blasts.

3.       The column mentioned by Dr. Whittaker

A)       was part of the building close to the World Trade Center.

B)        was part of the World Trade Center.

C)       was shot through the window and the floor of the World Trade Center.

D)       damaged many buildings in the vicinity of the World Trade Center.

4.       A surprising discovery made by the investigators during their visit to ground zero is that

A)       floors in the adjacent buildings remain undamaged.

B)        some floor framing systems demonstrate resistance to explosion.

C)       simple floor framing systems are more blast resistant.

D)       floors in one of the adjacent buildings were pierced by tons of debris.

5.       What Dr. Reinhorn said in the last paragraph may imply all the following EXCEPT that

A)       blast engineers should develop new solutions for terror-resistant design.

B)        blast engineering can borrow technologies developed for terror-resistant design.

C)       solutions developed for earthquake-resistant design may apply to terrorist-resistant design.

D)       blast engineering emergese as  a new branch of science.

 

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