摘要: When the teacher came in, the two boys stopped talking.

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 (A)There was ice on the road, and the doctor’s car hit a tree and turned over three times.To his surrise,he wasn’t hurt.He got out of the car and walked to the nearest house.he wanted to telephone the garage for help.AA woman,one of his patients,opened the door.”Oh,doctor,”she said,”I have only just telephoned you.You must have a very fast car.You hae got here very quickly,there was a very bad accident on the road outside.I saw it through the window.I’m sure the driver will need your help.”

判断正误(写T或F)

(  )1.The doctor was driving t the garage before the accident.

(  )2.A tree fell across te road,so the traffic accident happened.

(  )3.The doctor knew one of his patients lived in the nearest house.

(  )4. The patient phoned the doctor because she thought someone needed help.

(  )5. The woman wanted the doctor,but was surprised that he came so quickly.

(B) This is a street crossing. There are red and green lights at each corner. Drivers must watch he lights carefully.When there is a green light, the cars may go. When there is a red light, the cars must stop. Drivers must wait until the red light changes to green. Then they can go. Sometimes drivers want to make a right turn or a left turn. They can make a right turn when the light is green or red. But they must wait until the green light is shining if they want to turn left.Some people are colour-blind. They can’t see the difference between red and green. These people must not drive, or else there will be accidents. We must keep our streets safe.

(  )6.Drivers must watch __carefully at each corner.

A.           Green lights     B. red lights    C. the policeman     D. both A and B

(   )7.When there is a red light, ___________.

A.           the cars must stop                   B. the cars may go

C. the cars may make a left turn           D. the cars can’t stop

(  )8. The cars can make a left turn when _______________.

A.           There is a red light           B. There is a green light

C. There is a red or green light         D. There is a yellow light

(  )9.The colour-blind people must not drive because____________.

they are blind    B. they can’t tell the difference between red and green.

A.           C.they can’t hear anything       D. they can’t see the lights.

(  )10.According to the passage, we can know ____________.

A.              where there is a street crossing, there are traffic lights

B. the colour-blind people caused(引起) all the traffic accidents

C.if drivers always watch the traffic lights carefully, there will be fewer accidents

D. people who wear glasses cannot drive cars.

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Farmer Ed Rawlings smiles as he looks at his orange trees. The young oranges are growing well in Florida’s weather. Warm sunshine and gentle rains, along with Ed Rawlings’ expert care, will produce a good crop(收成)of oranges this year.
However, Ed has to guard against Florida’s changeable winter weather. In January and February, temperatures can destroy Ed’s entire orange crop. Having farmed in Florida for the past 35 years, Ed is prepared for the frost(霜). When temperatures drop below freezing, Ed tries to save his crop by watering his orange trees. The water freezes and forms a thin layer(层) of ice around the trees. Strange as it may sound, this thin layer of ice actually keeps the fruit warm.
What happens is simple. When the trees are watered, the water loses heat and becomes ice. The warmth of the heat it loses is taken in by the fruit and keeps its temperature at a safe level. Ed has effectively used this method to save many orange crops.
But Ed still faces difficulties. The trees must be watered at the exact moment the temperature drops to the freezing point. Also, just the right quantity(数量)of water must be used. Too much water can form a thicker layer of ice that will break the tree’s branches(树枝). Another difficulty is that wind blows away the heat, so Ed has to worry about not only when but also how often his trees should be watered, and how much water should be used.
Computer technology may help Ed with some of these worries. With equipment(设备), air and soil temperatures and wind speed can be measured. The information is fed into a computer which can calculate(计算) when the temperature will drop below freezing. The computer can correctly decide the quantity of water to be used and how frequently(  ) the trees should be watered. Ed finds looking after his orange trees a lot easier with the help of a computer, and, his customers will have the benefits(利益) of computer—age oranges. 
【小题1】The passage is mainly about______.
A.a farmer expert cares for his orange trees
B.the different uses of computers
C.growing oranges in Florida’s changeable weather
D.different ways of frost protection
【小题2】Ed tries to protect his crop by______.
A.using a wind machine to drive away the cold air
B.equipping his orange trees with a computer
C.watering it at the proper time
D.picking his fruit at the first sign of frost
【小题3】 According to the passage, the computer technology______.
A.removes the need for frost protection
B.prevents temperature from dropping
C.tells farmers why outdoor temperatures change
D.helps the farmer get a better harvest
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It seems to be strange to you there is a blind spot(点) on the eyes. Here is an interesting experiment that can make something disappear, when one eye is open.
  Make a card about the size of a postcard and write two English letters L and R on it, L on the left and R on the right. First, hold the card about 80 cm away and you see both the letters. Then close your right eye and look at the letter R only with your left eye. And now, as you move the card slowly towards you, you’ll find the letter L disappearing. But if you move the card nearer to your face, the letter will be seen again. Now do the same experiment with your left eye closed, you’ll find the letter R disappearing.
Why does the letter disappear? It is because there is a blind spot on the eye. When the image of the letter falls on the blind spot, it won’t be seen. That is why either of the letters disappears.
【小题1】The writer of the passage thinks that _____ there is a blind spot on the eye.

A.few people knowB.no one knowsC.most people knowD.all the people know
【小题2】In which order should you do the experiment?
①Hold the card  ②Move the card nearer   ③Close your right eye
④Write two English letters  ⑤Look at the letter R   ⑥Make a card
A.④⑥①②③⑤B.①③⑥④⑤②C.⑥①④③②⑤D.⑥④①③⑤②
【小题3】The passage mainly tells us _______.
A.how to find the blind spotB.an interesting experiment
C.where the blind spot isD.there is blind spot on the eye

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What’s your dream vacation? Watching wildlife in Kenya? Boating down the Amazon? Sunbathing in Malaysia? New chances are opening up all the time to visit the world. So we visit travel companies, compare prices, and pay our money.
We know what our vacation costs us. But do we know what it might cost someone else? It’s true that many poorer countries now depend on tourism for foreign income. Unfortunately, though, tourism often harms the local(本地的) people more than it helps them.
It might cost their homes and lands. In Myanmar, 5,200 people were forced to leave their homes among the pagodas(佛塔) in Bagan so that tourists could visit the pagodas.
Tourism might also cost the local people their jobs and dignity(尊严). Local workers often find only low-paying jobs in the tourist industry. And most of the money do not help the local economy(经济). Instead, money return to the tour operators in richer countries, When the Maasai people in Tanzania were driven from their lands, some moved to poor places of the city. Others now make a little money selling things or acting for photos.
Problems like these were noticed more than 20 years ago. But now tour operators and local governments are working together to begin correcting them. Tourists, too, are putting on the pressure.     
The result is “ethical(合乎职业道德的)tourism”. Ethical tourism has people at its heart. New international agreements and rules can help protect the people’s lands, homes, economies and cultures. The beginnings are small, though, and the problems are complex(复杂的).
But take heart. The good news is that everyone, including us, can play a part to help the local people in the places we visit. Tour operators and companies can help by making sure that local people work in good conditions and earn the money they should get.
They can make it a point to use only locally owned hotel, restaurants and guide services. They can share some money to help the local economy. And they can help the local people plan and manage tourism.
What can tourists do? First, we can ask tour companies to provide information about the conditions of local people. We can then make our choices and tell them why. And while we’re abroad, we can:
Buy local foods and products.
Pay a fair price for goods and services and not bargain for the cheapest price.
Ask before taking photographs of people.
They are not just part of the scenery!
Let’s enjoy our vacation and make sure others do, too.
【小题1】Which of the following is not mentioned?

A.Local people protected the pagodas in Bagan well.
B.Tourists may stay in hotels opened by local people.
C.Local people are mainly provided with low-paying work.
D.Tourists had better not bargain with local people for a cheap price.
【小题2】 The underlined phrase "take heart" means"      ".
A.pay attentionB.take careC.cheer upD.give up
【小题3】 According to the passage, the writer thinks          .
A.tourism is not a promising industry
B.dream vacations should be spent abroad
C.the problems caused by tourism are easy to settle
D.tourists should respect local customs and cultures
【小题4】What is probably the best title for the passage?
A.Tourism Causes Bad Effects.B.Tourism Calls for Good Behavior.
C.Vacations Bring a Lot of Fun.D.Vacations Cost More Than You Think.

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