新理念外语网络教学平台第四册Unit7测试答案 

Script: Now, al Qaeda and its Taliban allies no longer threaten Afghanistan, but just Pakistan itself.

正确答案: B 10. A) T B) F

Script: The author implies that the war should be made a partisan matter rather than for public concern.

正确答案: B

Section B

Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks with the exact words you have just heard. Finally, when the passage is read for the third time, you should check what you have written.

For almost thirty years, the World Trade Center stood more than 410 meters above New York City's financial center. The two towers of the Center were the tallest buildings in the city. They had more than 100 (11)_________________ . Then on the morning of September 11, two hijacked airplanes (12)_________________ the buildings.

Many people died immediately in (13)_________________ and fires. Others ran down countless steps in an effort to escape the buildings. Others waited for help in their offices. Then, one after another, both buildings fell. The collapse of the towers killed thousands of people. It also (14)_________________ or damaged surrounding buildings.

Engineers from the state of Illinois soon will (15)_________________ the collapse of the buildings for the Federal Emergency Management Agency. Their early study, however, shows that the buildings (16)_________________ up well. One tower (17)_________________ standing for about 47 minutes after the plane hit it. The other tower stayed up for about one hour and forty minutes after it was struck. The fact that the towers stayed up as long as they did (18)_________________ to escape.

Several experts have said no building could have resisted the attacks. The terrorists (19)_________________ the largest explosions and the hottest fires possible. So they loaded the planes heavily with fuel. The heat from the burning fuel weakened the steel structure of the towers. These fires burned far hotter than fires used to (20)_________________ . They also burned longer. The intense heat caused the upper levels of the buildings to fall. Then the lower levels also fell.

Script: For almost thirty years, the World Trade Center stood more than 410

meters above New York City's financial center. The two towers of the Center were the tallest buildings in the city. They had more than 100 levels. Then on the morning of September 11, two hijacked airplanes struck the buildings.

Many people died immediately in explosions and fires. Others ran down countless steps in an effort to escape the buildings. Others waited for help in their offices. Then, one after another, both buildings fell. The collapse of the towers killed thousands of people. It also wrecked or damaged surrounding buildings.

Engineers from the state of Illinois soon will investigate the collapse of the buildings for the Federal Emergency Management Agency. Their early study, however, shows that the buildings held up well. One tower remained standing for about 47 minutes after the plane hit it. The other tower stayed up for about one hour and forty minutes after it was struck. The fact that the towers stayed up as long as they did permitted many people to escape.

Several experts have said no building could have resisted the attacks. The terrorists meant to cause the largest explosions and the hottest fires possible. So they loaded the planes heavily with fuel. The heat from the burning fuel weakened the steel structure of the towers. These fires burned far hotter than fires used to test building materials. They also burned longer. The intense heat caused the upper levels of the buildings to fall. Then the lower levels also fell.

正确答案: levels

正确答案: struck

正确答案: explosions

正确答案: wrecked

正确答案: investigate

正确答案: held

正确答案: remained

正确答案: permitted many people

正确答案: meant to cause

正确答案: test building materials

Part II Reading Comprehension ( 25 minutes )

Section A

Directions: In this section, there is a passage with several blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. You may not use any of the words in the bank more than once.

A) raining B) screams C) smoldering D) coincidence E) denounced F) just for once G) digest H) invincibility I) untrustworthy J) entombed K) blotted out L) collective M) finger-pointing N) flourished O) vulnerable

21. ______________________

正确答案: C

22. ______________________

正确答案: H

23. ______________________

正确答案: B

24. ______________________

正确答案: K

25. ______________________

正确答案: J

26. ______________________

正确答案: G

27. ______________________

正确答案: O

28. ______________________

正确答案: M

29. ______________________

正确答案: E

30. ______________________

正确答案: A

Section B

Directions: There are several passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice.

Passage One

Questions 31 to 35 are based on the following passage.

After the terrorist attack on the World Trade Center, structural engineers are trying hard to solve a question that a month ago would have been completely unthinkable: Can building be designed to withstand catastrophic blasts inflicted by terrorists?

Ten days after the terrorist attacks on the twin towers, structural engineers from the University at Buffalo and the Multidisciplinary Center for Earthquake Engineering Research (MCEER) headquartered at UB traveled to ground zero(被毁现场) as part of a project funded by the National Science Foundation. “Our objective in visiting ground zero was to go and look at the buildings surrounding the World Trade Center, those buildings that are still standing, but that sustained damage,” said M. Bruneau, Ph. D. “Our immediate hope is that we can develop a better understanding as to why those buildings remain standing, while our long-term goal is to see whether earthquake engineering technologies can be married to existing technologies to achieve enhanced performance of buildings in the event of terrorist attacks,” he added.

Photographs taken by the investigators demonstrate in startling detail the monumental damage inflicted on the World Trade Center towers and buildings in the vicinity. One building a block away from the towers remains standing, but was badly damaged. “This building is many meters away from the World Trade Center and yet we see a column there that used to be part of that building,” explained A. Whittaker, Ph. D. “The column became a missile that shot across the road, through the window and through the floor.”

The visit to the area also revealed some surprises, according to the engineers. For example, the floor framing system in one of the adjacent buildings was quite rugged, allowing floors that were pierced by tons of falling debris to remain intact. “Highly redundant ductile framing systems may provide a simple, but robust strategy for blast resistance,” he added. Other

strategies may include providing alternate paths for gravity loads in the event that a load-bearing column fails.

A. Reinhorn, Ph. D. noted that “Earthquake shaking has led to the collapse of many buildings in the past. It induces dynamic response and extremely high stresses and deformations in structural components. Solutions developed for earthquake-resistant design may be directly applicable to blast engineering and terrorist-resistant design. Part of our mission now at UB is to transfer these solutions and to develop new ones where none exist at present.”

31.

The question raised in the first paragraph is one _________________. A) that was asked by structural engineers a month ago

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

正确答案: C 32.

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

正确答案: D 33.

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

正确答案: A 34.

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

A) floors in the adjacent building remain undamaged

B) some floor framing systems demonstrate resistance to explosion C) simple floor framing systems are more blast resistant



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