3. D。细节题。根据倒数第 2 段得知Richard Jacobs with the other office workers开始离开了 79 层，但在 48 层时听说形势已得到控制，有几个人便又返回到了 79 层，大约 2 分钟之后他们的楼层被撞，据此选 D。

2. A。词义猜测题。根据…formal announcements inside the sound tower instructed people to stay put, assuring them that the building was sound and the threat was limited to the other tower 及其后的伴随状语所表达的意思 “向他们保证说这幢建筑物安然无恙并且威胁局限在另一塔”可知是要人们 “留下来”，据此选 A。

1. C。推断题。根据When the first jet struck World Trade Center at 8:48 a.m. on Tuesday…及And the 18 minutes before the next plane would hit were ticking off.…when the second jet crashed into the south tower… 可知第一架飞机撞击发生在上午8:48，第二架飞机撞击发生在18分钟之后，据此选 C。

4. Fewer people would have died if_______.

A. more announcement had been made

B. people hadn’t used the lifts

C. the incident had happened on a weekend

D. the people had obeyed the office rules

[答案解析]

本文描述了两架飞机先后撞击世贸大厦的情况及人们对此的反应。

3. Which floor was hit by the second jet?

A. the 91st floor　　　　　　　　　　　　　　　　 B. the 103rd floor

C. the 60th floor　　　　　　　　　　　　　　　　 D. the 79th floor

2. The underlined words “stay put” means_______.

A. stay in the building　　　　　　　　　　　　 B. leave at once

C. put everything back and then leave　 D. keep silent

1. From the passage, we know that the south tower was hit by the plane_______.

A. at 8: 30　　　　　　　　　　

B. 18 minutes earlier than the north tower

C. at around 9:06

D. at 8:48

3. B。词义猜测题。 根据第 1 行 …a new and comprehensive exam 和第 4 段…it is unlikely to soon gain the similarity of other already existing exams 可知 current 意思为“现实的，目前的”，故知 B 为正确答案。