About 40 percent of the citizens are unhappy ...

About 40 percent of the citizens are unhappy with public services, which ______ alarm bells ringing in some local governments, so related departments ______ pay too much attention to this survey.

A. has set; can’t　 　　 B. will set; mustn’t

C. has set; shouldn’t D. is setting; needn’t

高三英语单项填空中等难度题查看答案及解析

Buses are celebrating their 100th anniversary. About 80 percent of all public-transport passengers worldwide are carried by buses.

The bus is a very efficient mode of transport, being cheap, flexible, comfortable and, in many cases, tailored to the needs of users both in terms of capacity and speed. Buses operate in mixed traffic, and are easy to put in service.

From an economic, environmental and social point of view, the bus remains the best solution to the problem of achieving balanced and environmentally-friendly urban development. Indeed, the bus is the only mode of public transport in many of the world’s cities, and plays a key supporting role in cities with rail transport.

Over the past decades, increased use of roads by private cars has contributed to terrible traffic problems, affecting the speed of buses as well, and hence their service quality, reliability, energy consumption, and economy. In such circumstances, the efficiency and performance of buses depends heavily on special lanes. Various forms are possible----from a mere painted mark on the road to more expensive variants such as elevated lanes, movable barriers, and “bus locks”.

A related trend is to look beyond vehicle technology alone and to consider the wider system, of which buses are a part, such as the infrastructure(基础设施)and other operational aspects of city. This is commonly known and promoted as the “bus-system approach”. Other key innovations(革新) include clean engines, alternative fuels, and guidance devices. In terms of the designs of buses, much of what has happened to light rail can be transferred to them, including the shapes of the vehicles themselves.

The energy consumption of a bus per passenger is one-sixth that of a car, and buses are only responsible for about 5% of the CO₂ emissions generated by vehicles at present.

1.From this passage we learn that ________ .

A. buses are the most environmentally-friendly of all motorized vehicles

B. buses were first used more than a century ago

C. most passengers prefer trains to buses

D. a bus has a much larger capacity than any other vehicle

2.What has affected the service quality of buses?

A. Unsuitable infrastructure.               B. Private cars.

C. The increasing population of cities.

D. Very rapid urban development.

3.Which of the following is an approach to improving bus service?

A. Improving the speed of buses.

B. Reducing the number of private cars.

C. Setting up special lanes for buses.

D. Increasing the number of buses.

4.From the passage we can infer that in the future________.

A. there will be more buses than today

B. bus engines will need no power

C. buses will be replaced by other means of transport

D. the appearance of buses will change

高三英语阅读理解中等难度题查看答案及解析

Buses are celebrating their 100th anniversary. About 80 percent of all public-transport passengers worldwide are carried by buses.

The bus is a very efficient mode of transport, being cheap, flexible, comfortable and, in many cases, tailored to the needs of users both in terms of capacity and speed. Buses operate in mixed traffic, and are easy to put in service.

From an economic, environmental and social point of view, the bus remains the best solution to the problem of achieving balanced and environmentally-friendly urban development. Indeed, the bus is the only mode of public transport in many of the world’s cities, and plays a key supporting role in cities with rail transport.

Over the past decades, increased use of roads by private cars has contributed to terrible traffic problems, affecting the speed of buses as well, and hence their service quality, reliability, energy consumption, and economy. In such circumstances, the efficiency and performance of buses depends heavily on special lanes. Various forms are possible----from a mere painted mark on the road to more expensive variants such as elevated lanes, movable barriers, and “bus locks”.

A related trend is to look beyond vehicle technology alone and to consider the wider system, of which buses are a part, such as the infrastructure(基础设施)and other operational aspects of city. This is commonly known and promoted as the “bus-system approach”. Other key innovations(革新) include clean engines, alternative fuels, and guidance devices. In terms of the designs of buses, much of what has happened to light rail can be transferred to them, including the shapes of the vehicles themselves.

The energy consumption of a bus per passenger is one-sixth that of a car, and buses are only responsible for about 5% of the CO2 emissions generated by vehicles at present.

1. From this passage we learn that_____________.

A. buses are the most environmentally-friendly of all motorized vehicles

B. buses were first used more than a century ago

C. most passengers prefer trains to buses

D. a bus has a much larger capacity than any other vehicle

2. What has affected the service quality of buses?

A. Unsuitable infrastructure.                      B. Private cars.

C. The increasing population of cities.

D. Very rapid urban development.

3. Which of the following is an approach to improving bus service?

A. Improving the speed of buses.

B. Reducing the number of private cars.

C. Setting up special lanes for buses.

D. Increasing the number of buses.

4. From the passage we can infer that in the future_____________.

A. there will be more buses than today

B. bus engines will need no power

C. buses will be replaced by other means of transport

D. the appearance of buses will change

高三英语阅读理解简单题查看答案及解析

More than 40 percent of the species that help with pollination (植物传粉) are under threat due to the polluted environment. So some researchers have been searching for ways to protect the bees and other crucial pollinators while some engineers have thought perhaps an army of robotic pollinators could keep humans well-supplied in these foods. A team of researchers has recently designed a small drone capable of pollinating flowers. They tested their device on the large, pink flowers of lilies. And it worked.

Exciting as this success was, it is only the first step. The team has yet to figure out how to apply the concept on the massive scale. Could a fleet of robo-pollinators replace the bees?

“Although the answer isn’t a straightforward no, it would be a challenging leap to go from this one little drone pollinating one large flower to an army of drones spreading across fields of crops,” says Scott Swinton, an agricultural economist at Michigan State University.

“The successful pollination was fascinating,” Scott Swinton says, “but the device itself might damage the flowers. I wonder how you make sure you’re not doing more harm than good to flowers when you have a drone.”

“Furthermore,” he points out, “a lily is a particularly easy flower for a drone to pollinate. To make this more broadly applicable for smaller and more complex flower structures, the drones would need to be particularly agile.”

Still, Joshua Campbell, an expert at the University of Florida, says “Pollination systems are extremely complex and will always require insects. There is no substitute for bees.”

“As for the technology itself, it is a promising new development in existing drone technology,” he added. Yet he still sees some hurdles ahead before drones can be applied on a large scale.

1.What makes those scientists invent pollinating drones?

A. There are no satisfying pollinators.

B. Humans need more food supplies.

C. Pollinating species are being endangered.

D. Drone technology is well-developed now.

2.What problem does Scott think scientists have to solve for the robo-pollinators?

A. Making them look like bees. B. Using them in quantity.

C. Keeping them flying non-stop. D. Instructing them to tell plants.

3.The underlined word “agile” in Para 6 can be replaced by “________”.

A. cheap B. catchy

C. lovely D. smart

4.What’s the best title for the passage?

A. Will pollinating drones take over for honeybees?

B. What is leading pollinating honeybees to decline?

C. Why does pollinating need a money-saving option?

D. How did researchers invent pollinating drones?

高三英语阅读理解中等难度题查看答案及解析

It is reported that 40 percent of the land in Brazil________covered with trees.

A．is　         B．was　     C．are　         D．were

高三英语单项填空中等难度题查看答案及解析

5. About 40 _____ of the population of that country _____ on farms.

高三英语单项填空简单题查看答案及解析

The survey ____ in our school last month shows that about three percent of the students are addicted to the Internet games.

高三英语单项填空中等难度题查看答案及解析

About 20 percent of the work ____done yesterday.

高三英语单项填空简单题查看答案及解析

The survey_________in our school last month shows that about 2 percent of the students are addicted to Internet games.

A.conducting                         B.having been conducted

C.conducted                          D.to be conducted

高三英语单项填空简单题查看答案及解析

China has been pushing the reform of public hospitals ______ all its citizens.

A. in charge of　　　　 B. for the purpose of

C. in honor of　　 　　 D. for the benefit of

高三英语单项填空中等难度题查看答案及解析