Small cars are ___ of fuel, so they have more appeal for consumers.
| A．free | B．short | C．typical | D．economical |
高三英语单项填空简单题
Small cars are ___ of fuel, so they have more appeal for consumers.
| A．free | B．short | C．typical | D．economical |
高三英语单项填空简单题查看答案及解析
Hybrid cars （混合动力车） are cars that run on petrol and electricity. They have a small standard petrol engine and a battery (电池) electric motor to provide electric power.
There are some differences between different models of hybrid cars, but the general principle is that the car runs on petrol, and the electric motor kicks in when additional power is required, for example, when going uphill or accelerating. In some hybrid cars the petrol engine turns itself off when not needed, for example when the car has stopped at traffic light, keeping only the electric engine running.
Conventional cars have large engines to deal with driving uphill and accelerating. Hybrid cars have much smaller petrol engines, improved by electric motors when needed, so they use less petrol. Another way that fuel consumption is cut is by a system of "regenerative (再生的) braking". The electric motor is used to slow down the car, rather than conventional brakes. The energy produced by slowing the car is changed into electrical power, which is automatically stored in the battery. In effect, the battery recharges when you brake. In conventional cars the energy produced when braking is wasted.
In 1928 Ferdinand Porsche built an experimental hybrid car. The first mass-produced hybrid car, the Toyota Prius, came out in Japan at the end of 1997. However, hybrid cars became available in the USA only in 1999. As they use less fuel, hybrid cars are cheaper to run. There are also many voices in place to encourage people to buy them. In some countries, hybrid car owners pay a lower rate of tax, and don't have to pay on certain roads. In some cities, hybrid cars are allowed to park for free.
1. Hybrid cars consume less energy than conventional cars because hybrid cars _____.
A. have large engines to deal with accelerating
B. have conventional brakes to slow down the car
C. have electric power to assist when needed
D. have no energy consumption when stopping
2. In regenerative braking, _____.
A. energy wasted in conventional cars is stored in the battery
B. the conventional brakes are used to slow down the car
C. the battery charges itself when the car is accelerating
D. the petrol engine is usually turned off automatically
3.From the last paragraph we can learn that Hybrid cars ____.
A. were first available in the USA
B. will gain more popularity
C. free their owners from tax
D. are free to park anywhere in the city
4. The main purpose of this text is to_____.
A. show haw hybrid cars slow down
B. encourage people to buy hybrid cars
C. inform people a kind of energy-saving cars
D. explain why hybrid cars use less energy
高三英语阅读理解中等难度题查看答案及解析
A small car is big enough for a family of three ____ you need more space for baggage.
| A．once | B．because | C．if | D．unless |
高三英语单项填空中等难度题查看答案及解析
A small car is big enough for a family of three ____ you need more space for baggage.
A. once B. because C. if D. unless
高三英语单项填空中等难度题查看答案及解析
In fact, a small car is big enough for a family of three, ______ you need more space for luggage.
A．once B．because C．as if D．unless
高三英语单项填空中等难度题查看答案及解析
A small car is big enough for a family of three ________ you need more space for baggage.
A．once B．because C．if D．unless
高三英语单项填空困难题查看答案及解析
A small car is big enough for a family of three ________ you need more space for baggage.
A．once B．because C．if D．unless
高三英语单项填空中等难度题查看答案及解析
Environmental problems are becoming more and more serious all over the world. For example, cars have made the air unhealthy for people to breathe and poisonous gas is given off by factories. Trees on the hills have been cut down and waste water is being poured continuously into rivers. Furthermore, wherever we go today, we can find rubbish carelessly disposed.
There are different kinds of pollutants, each of which comes from different sources. It is necessary to identify the source of pollution, in order to make a policy to eliminate them.
Different products, processes and activities of our industrialized world together form the major source of pollution. The forms of pollution can be mainly divided into three kinds—solid, liquid and gas.
These pollutions have greatly damaged our planet and continue to do so. In fact, pollution is threatening our existence. The whole ecological balance of the earth is changing. Massive destruction of environment has brought about negative effects and even posed a great threat to man’s existence.
We must face the situation that exists and take action to solve our environmental problems. For instance, new laws must be passed to place strict control over industrial pollution, the public must receive the education about the danger of pollution and so on.
The earth is our home and we have the duty to take care of it for ourselves and our later generation. Fortunately, more and more people have realized these problems. Measures have been taken to deal with these situations by the government. Laws have been passed to stop pollution, I hope the problems will be solved in the near future and our home will become better and better.
1. How many examples of environmental problems are given in the first paragraph?
A. 2 B. 3 C. 4 D. 5
2. Which of the following is TRUE according to the passage?
A. In all there are three kinds of pollution
B. If people continue to pollute our planet, there will be no trees.
C. Industrial pollution has been completely controlled.
D. Laws have been passed to stop pollution and protect our environment.
3. The sentence “We hope that all these measures will be effective and bring back a healthy environment” can best be put at the end of paragraph _____.
A. 2 B. 3 C. 5 D. 6
4. The writer’s attitude towards the future of the earth is _____.
A. despair B. negative C. optimistic D. hopeless
高三英语阅读理解中等难度题查看答案及解析
When you don’t have a car and need to get around, are you more likely to call for an Uber or Lyft, or a cab? Last Friday, Lyft — the ride-sharing company, went public as its stocks (股票) started trading on the market. Lyft has become the first big initial public offering of the “gig economy” age. While the company is not making profits yet, it is changing the meaning of work. What is gig economy and what makes it so appealing?
Gig works are independent contracts (合同) or part-time jobs such as Uber. In the gig economy, companies hire independent contractors instead of full-time employees. This is different from traditional companies where full-time workers hold a lifetime career. In the past, only small companies hired contractors, while today, employers like Amazon and Google rely on temporary workforce. These companies save costs as they are not legally required to provide healthcare benefits, retirement savings or paid time off to gig workers.
Gig work appeals to different people for different reasons. For some, it affords flexible timings and for otliers who are looking for full-time jobs, it provides a source of income to support themselves. Some people work a full-time job and supplement (补充) their salary with gig jobs such as driving for Uber or Lyft.
Joining the gig economy may be simple, but maintaining a steady career is easier said than done. Gig work comes with unsteady pay and workloads. You're your own boss. It sounds fun, but when you have no self-control and an unsteady job, you might splurge all your money the first week and live on bread pieces for the rest of the month! Besides a strong sense of responsibility, gig workers have to stay up to date to get companies to hire them.
Despite the challenges gig workers face, nearly 60 million Americans are part of this workforce. As this number grows, we have to see how society and companies adapt to this new world of work!
1.What can be learnt about Lyft from the passage?
A.It has built up a large fortune.
B.It marks the arrival of gig economy age.
C.It employs a fixed number of full-time workers.
D.It appeals to people as a means of public transport.
2.Who are most likely to become gig workers?
A.People seeking for a steady income.
B.Those desperate to get paid vacations.
C.People in need of flexible working hours.
D.Those concerned about retirement accounts.
3.What does the underlined word “splurge” in paragraph 4 mean?
A.Spend money freely. B.Deposit money automatically.
C.Earn money quickly. D.Allocate money randomly.
4.What is the message mainly conveyed in the passage?
A.Gig workers have to face some potential challenges.
B.Gig workers have to possess some much-needed qualities.
C.The appearance of gig companies will solve the job problems.
D.People should adjust to new work trends with the rise of gig companies.
高三英语阅读理解中等难度题查看答案及解析
Vehicle designers are well aware that they need to ______ the idea of cars that have a low environmental impact.
A. end up with B. put up with C. keep up with D. come up with
高三英语单项填空中等难度题查看答案及解析