[单项选择]A. In a laboratory.
B. In a library.
C. In a hotel.
D. In a coffee shop.

[简答题]Hot spot

[填空题]Its so hot today.

[单项选择]Hot air accompanied by high relative humidity feels warmer than（　）.
A. it actually is
B. actually it is
C. is it actually
D. is actually it

[单项选择]
Extremely hot weather is common in many parts of the world. Although hot weather just makes most people hot, it can cause medical problems--and death.
Health experts say that since the year 1900, extremely hot weather has killed more people in the United States than any other natural event. One year--the unusually hot summer of 1980--heat caused about 1,700 deaths in the United States. In 1995, more than 600 people died in a similar heat wave in one city--Chicago.
To measure extreme heat, government weather experts have developed the Mean Heat Index. It measures the average of how hot it is felt all day on an extremely hot day. Experts say it is the total heat of a hot day or several hot days that can affect health. Several hot days are considered a heat wave. Experts say heat waves often become deadly when the nighttime temperature does not drop much from the highest daytime temperature.
The most common m
A. About 1700.
B. Nearly 1900.
C. Around 1100.
D. Over 600.

[填空题]

Heat Is Killer

Extremely hot weather is common in many parts of the world. Although hot weather just makes most people feel hot, it can cause serious medical problems-even death. Floods, storms, volcano eruptions and other natural disasters kill thousands of people every year. (46) . Experts say heat may be nature’s deadliest killer. Recently, extreme heat was blamed for killing maore than one hundred people in India. It is reported that the total heat of a hot day or several days can affect health. (47) Expels say heat waves often become dangerous when the nighttime temperature does not drop much from the highest daytime temperature. This causes great stress on the human body.
(48) Stay out of the sun, if possible. Drink lots of cool water. Wear light colored clothing made of natural materials; avoid wearing synthetic clothing. Make sure the clothing is loose, permitting freedom of movement. And

[简答题]Digital cameras are hot. Every photography lover, it seems, either has a new digital camera or is thinking about getting one. If you’re in the latter category, you’ll find that it’s easy to be confused by the array (展示,摆设) of choices available.

[填空题]Unlike hot dogs, hamburgers are a favorite picnic food.