英语听力入门3000第一册答案

　　Number one is a sign with the number thirty on it. When drivers see this sign they must not go at more than thirty miles an hour. We see this sign when we get to parts of the country where there are many houses and other buildings, for example, when we are getting near a town. Thirty miles an hour is the speed limit.

　　Number two is the sign for the end of the speed limit. We are out of the town now and may go at more than thirty miles an hour.

　　Number three a sign that we are near a cross-road, that is, a place where two roads cross. We must drive carefully.

　　Number four a sign that there is a bend in the road. Again, we must drive slowly and carefully. Number five a sign that there is another road coming in from the right. This road joins our road; there is a road junction at this place.

　　Number six a sign that there is a hill and number seven a sign that the road gets narrow. Drivers must go slowly and carefully.

　　Number eight shows us a gate. There is a level crossing. This is a place where a railway crosses the road. The road and the railway are at the same level. There is no bridge. A level crossing is a dangerous place. Careful drivers stop or go very slowly. Is the gate across the road open or shut? Is there a train coming?

　　Number nine has the word "school" on it. This is a sign that there is a school at the side of the street or road. Perhaps there are children going to school or leaving school. So drivers must look carefully and go slowly until they are past the school building.

　　Number ten is a sign with the letter p on it. The letter p is for "Parking". A parking place is a place where drivers may leave their cars. If the driver of a car wants to leave his car and go to the shops, he looks for this sign. Then he knows that he may leave his car there.

　　Part II

　　Section A last month / oil / the environment / cars, buses, motorized bicycles / another kind of fuel / hybrids and vehicles that use other kinds of fuels than oil

　　Section B

　　1. electricity/ natural gas or propane

　　2. walking, biking, using public transportation systems

　　3. a. changes in the world climate

　　b. air pollution

　　c. health problems

　　Energy saving vehicles were part of the Green Transportation Festival in Washington D.C., last month. The vehicles are designed to reduce America's dependence on oil and help the environment. The festival takes place in several American cities.

　　There are exhibits of cars, buses, motorized bicycles at the festivals. Most of them use little gas or use another kind of fuel such as biodiesel, electricity, hydrogen, natural gas or propane. People are also urged to consider ways of getting around, such as walking, biking, using public transportation systems. Personal transportation vehicles, called scooters, are also gaining interest. These methods all avoid or reduce the use of gasoline and diesel fuel, which are made from oil.

　　Individuals, students and carmakers took part in the festival. They wanted to show people what their so-called "green" vehicles could do. Teams of students competed for prizes.

　　The United States has less than five percent of the world's population. But it uses about twenty-five percent of the world's oil.

　　More than half of the nation's oil is imported. Most of it goes to transportation.

　　But festival organizers say progress in technology is making it possible for Americans to reduce their dependence on oil for transportation. That is because the kinds of energy-saving vehicles are increasing. Hybrid vehicles, for example, combine a gasoline engine and an electric motor. There are thousands on the road today. They can reduce gasoline use by as much as fifty percent.

　　Festival organizers say that efforts to reduce oil imports in the United States would also have important environmental and public health benefits. The burning of oil as fuel is responsible for a large share of he gases blamed for changes in he world climate. When gasoline is burned in cars, it also pollutes the air. This leads to breathing problems, cancer and other health problems.

　　Organizer say that strong public demand for hybrids and vehicles that use kinds of fuels could force carmakers to produce more such vehicles. That is the goal of the Green Transportation Festival.

　　Part III

　　Section A this week/ road users / the number of road accidents / take basic measures / seat belts / focus more on road safety / safer roads / traffic-free play area

　　Section B Children playing in the street / Young and inexperienced car drivers / badly designed / badly maintained / road users / the rules

　　The United Nations has opened the world's first Road Safety Week this week in a bid to raise safety awareness among road users and to reduce the number of car accidents. This week aimed especially at young people. Latest figures at the World health organization showed that road accidents are now the biggest cause of deaths among young people aged between 10 and 24.