4. From this passage we know that we feel differently in different kinds of weather because _______.

A. our bodies deal with different kinds of weather in different ways to keep the same temperature

B. we feel tired and lazy in summer and lively in winter when we are outside in cold air

C. we have different emotions in different kinds of weather

D. the body temperature is always changing in different kinds of weather

答:1. A 2. D 3. B 4. A

28

Bicycle tour (旅行) and race

A bike tour and race will be held on August 26 and 27 (Sat&Sun) At 5:30 mm. , and the riders will leave Tian’anmen Square and ride the first 35 kilometres as a training leg. Then the next 55 kilometre leg, from Yanjiao to Jixian, will be the first competitive (竟争性的) part of the tour. The riders and their bikes will then be taken from Jixian to Changli.

The second racing leg of the tour will be from Changli to the seaside of Nandaihe, covering a distance of 20 kilometres. Saturday night includes the stay at Nandaihe and supper. Sunday morning is free for play at the seaside. At noon all the people and their bikes will be taken back to Beijing.

Cost: 200 yuan

Telephone, 4675027

Brazilian footballers

The Brazilian Football Club will play Beijing Guo’an Team at the Workers’ Stadium on August 26. The club has four national team players. Also coming is 1994 US World Cup star Romario who has promised to play for at least 45 minutes.

Ticket prices: 60, 100, 150 yuan

Time/Date: 4:30 p.m., August 26 (Sat.)

Telephone, 501 2372

Rock climbing

The Third National Rock Climbing Competition will be held on August 26-27 at the Huairou Mountain-climbing Training Base. More than 10 teams from Baijing, Wuhan, Dalian, Jilln and other places will take part in it. A Japanese team will give an exhibition climbing. Free for spectators (观众).

Take a long-distance bus from Dongzhimen to Huairou,

Time/Dates: 9 12 a. m. , August 26 and 27

Telephone: 7143177, 7144850, Wang Zhenghua

1.考查对知识细节的把握,A、B、D选项均为中美首脑会谈的内容,唯独drug strike(打击毒品)文中没提到。2. 从Extending his congratulations on China’s immi-nent entry into the WTO...可知Bush对中中入世的态度。3. 从文章提到会谈是con-structive and fruitful这一主要信息可知该题的选项。

27

The temperature of your body should always be the same if you are fine, no matter whether the weather is hot or cold. That is why the doctor test your temperature with a thermometer when you are sick. Normally, your body temperature is ninety-eight point six degrees Fahrenheit (华氏的). If it is higher than that, it is a sure sign that some thing is wrong with your body.

Your body keeps the same temperature all the time, because it balances (平衡) the heat it produces and the heat it gives off. It is always burning up food and producing heat. It can produce heat faster when the body needs or gives off heat faster when the body be-comes too warm. Let’s see how this works.

The heat of your body is given off chiefly through the skin. When you feel cold. your skin is tight and shows “goose flesh”. When you feel chilly (寒冷的), you must jump around to keep warm. Then your muscles begin to work, burn up fuel and produce more heat. It is not pleasant to shiver (颤抖), so you usually prefer warming up by tak-ing exercise, or put on more clothes to keep warm.

When you get warm, the skin is loose and soft. It is so supplied with blood that heat is given off rapidly. If you get too warm. you begin to sweat and more body heat is used in evaporating (蒸发) the moisture (水分) in your body. In warm weather or warm rooms, you wear less clothing, so that heat can be given off freely. You prefer less exer-cise because your body is warm enough, and the extra heat produced by taking too much exercise makes you uncomfortable.

Now you see why you feel differently in different kinds of weather. In summer. when it is hot, you feel tired and lazy. You do not care to work or play, but enjoy lying down and doing nothing. When you get out of door in winter, the cold air makes you feel lively. You want to run and play.

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