________ of the city was covered with the hea...

________ of the city was covered with the heavy smog.

A.Two-third　　　　　 B.Two-thirds　　　　

C.Two-three    　　　　 D.Two-threes

九年级英语单项填空中等难度题查看答案及解析

The road was covered with sand ______ the heavy sandstorm.

A. because of　 B. because

C. for　　　　　　 D. as

九年级英语单项填空简单题查看答案及解析

The road was covered with sand ________ the heavy sandstorm.

A. because of     B. because      C. for          d. as

九年级英语单项填空中等难度题查看答案及解析

The road was covered with sand ________ the heavy sandstorm.

A. because of　　 B. because　　 C. for　　 D. as

九年级英语单选题简单题查看答案及解析

Almost a seventh of China has been under heavy smog. The air pollution in 20 cities has reached the “danger level”. China is not alone, however. Many countries have the same situation. The air pollution is a problem from which we can't hide.

The United States

Since the beginning of the 19th century, America has had trouble with environmental problems, air pollution in particular. Almost 60 percent of Americans live in areas, where air pollution has reached unhealthy levels. It can make people sick.

The US created the Environmental Protection Agency in 1970 and passed the Clean Air Act. Now the air　 all over the country is much cleaner, especially compared to ten years ago.

London

Yellow­grey smog was a frequent visitor to London in the 1950s and got the name “London fog”. The heaviest, which shocked the world, was in 1952. Because of cold weather and windless conditions, polluted air covered the city. People could see something around them only in a few meters and about 4，000 people died. In 1956, London passed the Clean Air Act. It largely reduced air pollution.

New Delhi

Because New Delhi is developing fast, its air quality is even worse than that of Chinese cities. New Delhi has done little to improve air quality in recent years. However, the city government made a few changes more than 10 years ago. They moved industry out of the city, built a subway and improved public transport.

根据短文内容，完成下面的表格。

九年级英语填空中等难度题查看答案及解析

Almost a seventh of China has been under heavy smog. The air pollution in 20 cities has reached the “danger level”. China is not alone, however. Many countries have the same situation. The air pollution is a problem from which we can't hide.

The United States

Since the beginning of the 19th century, America has had trouble with environmental problems, air pollution in particular. Almost 60 percent of Americans live in areas, where air pollution has reached unhealthy levels. It can make people sick.

The US created the Environmental Protection Agency in 1970 and passed the Clean Air Act. Now the air　 all over the country is much cleaner, especially compared to ten years ago.

London

Yellow­grey smog was a frequent visitor to London in the 1950s and got the name “London fog”. The heaviest, which shocked the world, was in 1952. Because of cold weather and windless conditions, polluted air covered the city. People could see something around them only in a few meters and about 4，000 people died. In 1956, London passed the Clean Air Act. It largely reduced air pollution.

New Delhi

Because New Delhi is developing fast, its air quality is even worse than that of Chinese cities. New Delhi has done little to improve air quality in recent years. However, the city government made a few changes more than 10 years ago. They moved industry out of the city, built a subway and improved public transport.

根据短文内容，完成下面的表格。

九年级英语填空中等难度题查看答案及解析

The weather of Antarctica(南极洲)is cold, cloudy with heavy snow. Most parts of it are covered with ice sea for 10 months. Though it is dry and seldom rains, scientists in Antarctica have gotten their first crop of vegetables that they grew without earth. As one part of a plan, it will help astronauts to study fresh food about other planets.If the plan is successful, people will have some space to plant vegetables and fruit.

Researchers at Germany's Neumayer Station III say they have planted 3.6 kilograms (about 8pounds) of salad green vegetables, including 18 cucumbers and 70 carrots in a high technology greenhouse(温室)，while the temperatures outside dropped below -200C. In this way, they can eat fresh vegetables in time.

The German Aerospace(航天航空) Center DLR, Daniel Dchubert, which was the leader of the plan, said on Thursday,“Scientists hope to get 4 to 5 kilograms of fruit and vegetables a week in May.Maybe the plan can turn into reality."

While NASA has successful grown green plants on the International Space Station, DLR's Daniel Dchubert says the Antarctic plan decides to produce a wider range of vegetables, such as tomatoes, onions and so on. People might grow them on the Mars or the Moon one day.

We know people depend on agriculture since the beginning of human history.

Without agriculture,people can't live for many years. At the same time, the development of agriculture needed some conditions,including environment, temperature, weather and so on. The technology develops quickly. People will plant the vegetables on the Mars sooner or later.

1.What's the weather like in Antarctica according the passage?

A.Sunny and cold. B.Cool and snowy. C.Dry and rainy. D.Seriously bad.

2.From Daniel Dchubert' s words , we can learn that_________.

A.Antarctic plan will produce more kinds of vegetables

B.more vegetables might be grown on the Sun or the Moon

C.Antarctic plan may be useless to other planets, like the Mars

D.Green plants will be grown on the International Space Station

3.Which of the following is TRUE according to the passage?

A.3.6 kilograms is 9 pounds. B.No people are living in Antarctica.

C.People will plant vegetables on the Mars. D.Scientists in Antarctica can't grow vegetables.

4.What' s the meaning of the underlined word“agriculture” in Chinese?

A.航天. B.工业. C.农业 D.服务业.

5.What' s the best title for the passage?

A.Green vegetables in Antarctica. B.Special weather in Antarctica.

C.A great plan about vegetables. D.Planting green vegetables.

九年级英语阅读单选困难题查看答案及解析

---______ of the city ______ covered with parks and gardens.

---Wow， it’s really a green city.

A.Two third； is　　 　　 B. Two thirds； is

C. Two third； are　　　　 D. Two thirds； are

九年级英语单项填空中等难度题查看答案及解析

________ of the city ________ covered with parks and gardens, oh, it’s really a green city.

A. Three fifth / is　　 B. Three fifths / is

C. Three fifth / are　　 D. Three fifths / are

九年级英语单项填空中等难度题查看答案及解析

In our city, one third of the area________covered with green trees, but only forty percent of them ________ well looked after.

A.is; have B.is; are C.has; are

九年级英语单选题中等难度题查看答案及解析