[单项选择]

W: The lecture starts in two minutes. You should have gotten up early this morning.
M: No. The train was delayed by an accident.

What is the woman complaining about（）
A. That the man is late.
B. That they should have a class.
C. That he must speak for him.
D. That the train was delayed.

[简答题]Question: Summarize the lecture and illustrate two types of product utility.

[单项选择]Today’s lecture is about two powerful natural forces, one destructive, yet the other productive.
Tornado (龙卷风) is a typical example of destructive forces in nature. Forces other than damaging winds are also at work inside tornadoes. Sometimes as twisting, screaming wind passes over house, the walls and the ceiling burst apart as if a bomb had gone off inside. This explosion is caused by the low air pressure at the center of a tornado.
The pressure at the center of a tornado is usually 13 pounds per square inch. However, inside the house the air pressure is normal, about 15 pounds per square inch. The difference of 2 pounds per square inch between the inside and outside pressure may not seem like much. But suppose a tornado passes over a small building that measures 20 by 10 feet. On each square inch of the building, there is 2 pounds of pressure from the inside that is not balanced by air pressure outside the building. On the ceiling, that adds up to an unbalanced pressu
A. force of tornado increases the air pressure in a building
B. air pressure at the center of a tornado is as strong as over 172,000, pounds
C. weight of a tornado can crush a building’s roof when it passes overhead
D. air pressure inside a tornado is less than air pressure inside a building

[填空题]
In this section you will hear a mini-lecture. You will hear the lecture ONCE ONLY. While listening, take notes on the important points. Your notes will not be marked, but you will need them to complete a gap-filling task after the mini-lecture. When the lecture is over, you will be given two minutes to check your notes, and another ten minutes to complete the gap-filling task on ANSWER SHEET ONE. Use the blank sheet for note-taking.
{{B}}SECTION A{{/B}}
Complete the gap-filling tusk. Some of the gaps below may require a maximum of THREE words. Make sure the word (s) you fill in is (are) both grammatically and semantically acceptable. You may refer to your notes.