专业英语四级（听写听力）-试卷184及答案解析.doc

1、专业英语四级（听写听力）-试卷184及答案解析 (总分：12.00，做题时间：90分钟)一、DICTATION(总题数：6，分数：12.00)1.PART I DICTATIONDirections: Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the

2、 second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work.（分数：2.00）_专业英语四级（听写听力）-试卷184答案解析 (总分：12.00，做题时间：90分钟)一、DICTATION(总题数：6，分数：

3、12.00)1.PART I DICTATIONDirections: Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by

4、sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work.（分数：2.00）_解析：_正确答案：(正确答案： The Water Cycle The water cycle describes the continuous movement of water / on, above and below the surface of t

5、he Earth. / Although the balance of water on Earth remains fairly constant over time, / individual water molecules can come and go, in and out of the atmosphere. / The water moves from one reservoir to another. / In so doing, the water goes through different phases: liquid, solid and gas. / The wate

6、r cycle involves the exchange of heat, which leads to temperature changes. / For instance, when water evaporates, it takes up energy from its surroundings and cools the environment. / When it condenses, it releases energy and warms the environment. / These heat exchanges influence climate. /)解析：_正确答

7、案：(正确答案： Water Water is a vital component of our diets, / even though its not considered a specific nutrient. / Water makes up 50 to 70 percent of an adults total body weight. / Water is essential for the bodys growth and maintenance. / For example, it helps get rid of waste and regulates temperatur

8、e, / and it provides a medium for biological reactions to occur in the body. / Water is lost from the body through urine and sweat, / and must be replaced through the diet. / If you dont consume enough water, your kidneys suffer, / causing symptoms such as headaches, tiredness and loss of concentrat

9、ion. /)解析：_正确答案：(正确答案： US Congress The United States Congress is made up of the House of Representatives and the Senate. / Congress is the legislative branch of government. / It is responsible for creating, debating and changing laws in the United States. / Both the House and the Senate must approve

10、 a bill in order for it to become law. /The House of Representatives has 435 members elected by voters in congressional districts. / The representatives are divided among the 50 states based on population size. / The House of Representatives can introduce bills that deal with taxes or spending. / It

11、 can also remove federal officials from office. / And it can elect the president in the case of an equal number of votes in the electoral college. /)解析：_正确答案：(正确答案： Reptiles at Risk A research made in conjunction with 200 species conservation experts has found / the future of 19% of the worlds repti

12、les are threatened. / Experts also confirmed that 47% are vulnerable / and highlighted the possible extinction of three species. / Reptiles are a group of animals including turtles, tortoises, snakes, lizards, crocodiles and worm lizards. / The lizard-like animals found only in New Zealand are also

13、included. / Usually, reptiles can be indicators of environmental problems. / Many species are highly specialized in terms of habitat use and climatic conditions. / This makes them particularly sensitive to environmental changes. /)解析：_正确答案：(正确答案： Petroleum Petroleum has been important since ancient

14、times. / The Greek historian told of its use in the form of pitch for building and road making. / Petroleum is a fossil fuel. / The liquid comes from the remains of plants and animals / that died millions of years ago. / These remains were buried deep below levels of rock over time and under great pressure. / The modern history of oil started in the middle of the 1800s. / At that time, a method was found to make kerosene fuel from petroleum. / This kind of fuel became popular for heating and lighting. /)解析：