进阶大学英语第四单元练习答案

Key to Exercises

Opener

1. Winston Churchill led Britain to defeat Germany in WWII. Nelson Mandela ended apartheid in South Africa.

2. The young Winston Churchill was a military officer, a war correspondent and a writer before becoming a Member of Parliament. The young Nelson Mandela was a law student before getting involved in political opposition to white rule in South Africa.

3. When Winston Churchill was forced out of government he learned to paint and lay bricks, wrote tirelessly, gave speeches, and seized opportunities to return to politics. Nelson Mandela spent 27 years in jail, suffering inhuman punishment. Yet he never gave up. He even managed to earn a law degree from the University of London and encouraged his fellow prisoners to seek better treatment through nonviolent resistance.

Reading & Interacting

I. Understanding the Text

1. Text Organization

2. Comprehension Check

2.1 Focusing on the main ideas

I am an aide to Premier Li Keqiang. This morning, he was scheduled to meet Marcia

2.2 Digging into detail

1.She was in disbelief, because she thought Premier Li had too many pressing issues of national

and international concern to attend to than to meet her.

2.Current/present.

3.The meeting would be one-on-one and U.S. reporters were not allowed. The meeting would

last 30 minutes. They would discuss science and the economy, not politics. Some topics were off limits for the Premier, being suggested as more appropriate for conversations between her and President Bai Chunli of the Chinese Academy of Sciences.

4.Three. They are: returning farmland to forest; the value of China’s energy-saving and

environmental industries; and clean drinking water for rural Chinese people.

5.The importance of training more brilliant scientists for China, including extending training

opportunities to rural students.

6.To show that scientific research is highly respected/has a high status in China.

2.3 Understanding difficult sentences

•1) B

•2) A

•3) A

•4) B

II. Focusing on Language in Context

1. Key Words & Expressions

1.1

1.2

•1) off limits

•2) At first

•3) previous

•4) thanks to

•5) appropriate

1.3

from power plants, factories and cars.

2. Usage

1.

1)The Yangtze River is five times longer than the Dadu River.

2)The Yangtze River is six times as long as the Dadu River.

3)The Yangtze River is six times the length of the Dadu River.

2.

1)Despite competition, prices of our products have increased by 10 per cent since last year.

2)In the event of a 1% fall in the market rate, the return on the stock is expected to decrease by less than 1 per cent.

3)Mr Baker, General Manager of the company, saw his salary increase from £130,000 to £400,000while his workers had to settle for a 5.5 per cent wage rise.

4)In the United States, the average stay in hospital for a patient aged 65decreased from 13 days in 1967 to 8.8 days in 1986.

3. Sentence Patterns

1.

1)Politicians depend on experts for advice as to foreign policies.

2)I’m not absolutely certain, you see,as to whether I should say it.

3)By 3 pm, the Mayor demanded a timetable as to when the power would be back on.

4)As to how to go to Shanghai Museum by bus, I’m not sure about it because I have just moved to Shanghai.

2.

1)What caused the plane crash remains unknown.