To extinguish (熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable (手提式的) kinds operate for less than a minute, so they are useful only on small fires. The law requires ships, trains, buses and planes to carry extinguishers.

    Since fuel, oxygen (氧气) and heat must be present in order for fire to exist, one or more of these things must be removed or reduced to extinguish a fire. If the heat is reduced by cooling the material below a certain temperature, the fire goes out. The cooling method is the most common way to put out a fire. Water is the best cooling material because it is low in cost and easy to get.

    Another method of extinguishing fire is by cutting off the oxygen. This is usually done by covering the fire with sand, steam or some other things. A blanket may be used do cover a small fire.

    A third method is called separation, which includes removing the fuel, or material easy to burn, from a fire, so that it can find no fuel.

    The method that is used to put out a fire depends upon the type of fire. Fires have been grouped in three classes. Fires in wood, paper, cloth and the like are called Class A fires. These materials usually help keep the fire on. Such fires can be stopped most readily by cooling with water.

68. If a fire breaks out on a bus, which of the follow should be ready there for you to use?

A. Sand           B. Water         C. A blanket.           D. An extinguisher.

69. To cover a small piece of burning wood with a basin in order to stop the fire is an example of         .

A. separating the fire                                 B. reducing the heat

C. removing the fuel                                 D. cutting off the oxygen

70. In choosing how to put out a fire, we should first be clear about          .

A. when it breaks out                                B. how it comes about

C. what kind it is                                       D. where it takes place

71. What would the author probably discuss in the paragraph that follows?

A. Another class of fires                                   B. Another type of extinguishers

C. How fires break out.                                 D. How fires can be prevented.

He was driving home one cold evening on a country road when he saw an old lady，stranded on the side of the road.He stopped to give her a ____.“Why don’t you wait in the car where it is warm，Madam？It won’t take me long.” he said.“____，my name is Joe.”

She had a flat tire.Joe crawled under the car and changed the tire.But he got dirty and his hands hurt.She couldn’t thank him ___ and asked him how much she ____ him.He told her that if she really wanted to ____ him back，the next time she saw someone in ____ of help，she could give that person the ____ they needed，and Joe added，“And think of me.”

She drove off with gratefulness.A few miles ____ the road the lady saw a small ____.She went in.The waitress who was nearly eight months pregnant，____ her with a sweet smile.The old lady ____ how someone like her who seemed so poor could be so genuinely happy and how she could ____ her enthusiasm in her work in such inconvenient conditions.Then Joe’s words ____ her.After the lady finished her meal，the waitress went to get her ____ from a hundred?dollar bill.____，the lady stepped right out the door.

When the waitress came back，she noticed a note on the table，___ “I’m helping you because someone once helped me.If you really want to pay me back，here is ___ you can do—Do not let the chain of love ____ with you.”

The waitress went home that night with the ____ tip and what the lady had written.With the baby ___ next month，she and her husband needed money.She knew how worried her husband was and as he lay sleeping next to her，she whispered，“Everything’s going to be all right.I love you，Joe.”

1.A.surprise? B．hand

C．sympathy? D．glance

2.A.Just in case? B．As you wish

C．For one thing? D．By the way

3.A.enough? B．right

C．straight? D．extra

4.A.charged? B．provided

C．owed? D．offered

5.A.pay? B．bring

C．put? D．hold

6.A.honor? B．favor

C．need? D．possession

7.A.guidance? B．assistance

C．acquaintance? D．consequence

8.A.down? B．off

C．beside? D．beyond

9.A.bank? B．grocery

C．gas station? D．restaurant

10.A.introduced? B．greeted

C．identified? D．spotted

11.A.thought? B．suspected

C．wondered? D．questioned

12.A.taste B．measure

C．remain? D．maintain

13.A.struck? B．moved

C．obtained? D．reminded

14.A.tip? B．change

C．order? D．service

15.A.Moreover B．Otherwise

C．However? D．Eventually

16.A.writing? B．showing

C．going? D．saying

17.A.how? B．which? C．what? D．whether

18.A.combine? B．end

C．disagree? D．deal

19.A.honest? B．generous

C．modest? D．graceful

20.A.due? B．ready

C．born? D．likely

I was fifteen months old, a happy kid until the day I fell. It was a    31   fall. I landed on a glass rabbit which cut my eye badly enough to make it blind. Trying to save the eye, the doctors stitched(缝合) the eyeball together where it was    32  , leaving a big ugly scar(疤痕) in the middle of my eye. The attempt    33  , but my mother, in all of her wisdom, found another doctor who knew that if the eye were removed    34  , my face would grow up badly distorted(扭曲)，   35   my scarred, sightless, cloudy and gray eye lived on with me. As I grew, this sightless eye in so many ways    36   me.

I walked with my face looking at the    37   so that people would not see the    38   me. Yet my mother would say to me, at every turn, “Hold your head up high and    39   the world. If you hold your head up high, it will be OK, and people will see your    40   soul.” She continued this    41   whenever I was trying to hide.

Mama’s words were of great help for me to face the world    42  . As a teenager, even though I tended to look down to hide my shame, I found that sometimes when I held my head up high and let people know me, they    43   me. In high school, I was    44   both academically and socially. I was    45   elected class president. My mother’s words helped me begin to realize that by letting people look at my face, I let them    46   the intelligence and beauty behind both eyes, even if they couldn’t see it on the    47  .

Now I’m a happy wife and great mother. The message “Hold your head up high,” has been

   48   many times in my   49   home. Each of my children has felt    50   invitation, and the gift my mother gave me has lived on in another generation.

1.                A．surprising       B．sudden         C．big D．bad

2.                A．separated       B．destroyed       C．cut D．hurt

3.                A．failed          B．tried           C．succeeded    D．managed

4.                A．quickly         B．entirely         C．carefully  D．slowly

5.                A．then           B．if              C．still D．so

6.                A．protected       B．affected        C．stopped  D．interrupted

7.                A．floor           B．world          C．front     D．people

8.                A．shy            B．eldly           C．ugly D．strange

9.                A．deal with        B．see            C．laugh at   D．face

10.               A．different       B．beautiful        C．lonely     D．honest

11.               A．sentence       B．passage         C．opinion    D．message

12.               A．bravely         B．proudly         C．simply     D．fairly

13.               A．disliked         B．liked           C．hated D．noticed

14.               A．comfortable     B．valuable        C．successful D．special

15.               A．nearly          B．even           C．hardly     D．still

16.               A．touch          B．observe        C．watch     D．recognize

17.               A．surface         B．outing          C．head D．scar

18.               A．discussed       B．heard          C．talked     D．written

19.               A．brave          B．peaceful        C．sweet     D．exciting

20.               A．their           B．my            C．its    D．her

My name is Wang Kun. _ 1._  since middle school, my sister Wang Wei and I have _ 2._  about taking a great bike trip. Two years ago, she bought an expensive mountain bike and then she _ 3._  me to buy one. After leaving college, we finally got the chance to take a bike trip. _

 4._ was my sister who first had the idea to _ 5._ along the entire Mekong river from where it begins to where it ends. Now she is planning our _ 6._ for the trip.

I am _ 7._ of my sister but she can be really stubborn. I asked her whether she had looked at a map yet. Of course she hadn’t. My sister doesn’t _ 8._ about details. So I told her that the source of the river is in Qinghai Province. She gave me a _ 9._ look. I know my sister well. _ 10._ she has made up her mind, nothing can change it.

 You’ve bought what you need. The grocery cashier asks, “Will that be paper or plastic? You reply “Plastic, please.”

This seems like a simple question and there are plenty of reasons we choose plastic: easier to carry, lighter than paper bags, possibly less damaging to the environment, less expensive to the shop owners, able to be used as trash bag, and so on. There are different opinions on plastic and paper. Now let’s follow the travels of 3 plastic bags. It begins at the grocery store with the customer’s choice.

Plastic Bag 1: As the waste engineer come by and pick up the trash, the first plastic bag falls out. It sits on a small street for a couple of hours until a car comes along and takes it down to the road. Then a gust of wind blows it across the road, then another car, then another gust of wind finally makes its way to the beach. Water fills the plastic bag and makes it look like a jellyfish. A seal(海豹) swims by, thinking it looks very interesting, and swallowed it. The plastic bag may stay in the seal’s stomach for months, maybe years. You see, our lovely animals have been living thousands of years in a world where everything can be eaten.

Plastic Bag 2: This bag does make its way to landfill(垃圾场). Before they have a chance to cover up the thousands of pounds of daily waste, a strong wind comes up and blows these plastic bags out of the landfill. Once the wind stops, workers will be sent to collect thousands of bags around. But they can’t possibly get them all. So our little bag continues his adventure getting caught in trees, eaten by birds or making its way to our lakes or rivers.

Plastic Bag 3: The last bag also blows away but is caught in a landfill where it sits for many years, as all the trash is wrapped in a big plastic bag, making natural degradation(降解) impossible. Although workers do much work to make sure water and air system won’t be polluted, some do. Guess what, plastic bags are made from petrol, a harmful waste material, which in one way or another makes its way to the environment.

Another problem with putting plastic bags in out trash is that our landfills for most cities may be filled in about 20 years. More importantly, since we are running out of land to build homes, you might have the pleasure of one day living on top of your plastic bags!

One of the best suggestions is not to use a bag at all or bring your own cloth bags. If you must, please choose paper bags, which, though not suggested, can be eaten by animals. And there are more opportunities recycle paper bags. It does take a little extra effort. But please have a thought about the little seal next time you say, “Plastic please.”   

1.According to the passage, what is NOT the reason for a customer to choose plastic bags?

A. He can use plastic bags to carry trash later.

B. He finds paper bags heavier than plastic bags.

C. He finds plastic bags more convenient to carry.

D. He can save money for plastic bags are cheaper.

2.The author describes the travel of Plastic Bag 1 to show ______.

A. seals like eating plastic bags around them.

B. seals really have a good stomach.

C. seals are potential victims of plastic bags.

D. seals are not able to differ plastic from food.

3.Wrapped in a big plastic bag, Plastic Bag3_____.

A. still does harm to the environment

B. can hardly be harmful to the environment

C. is much safer than Plastic Bag2

D. will end up being eaten by seals or some fish

4.What will the following part of this passage talk about?

A. Suggestions on reducing harm of plastic bags.

B. Disadvantages of using too many plastic bags.

C. Persuading people into using paper bags.

D. Other potential victims of plastic bags.

5.What is the overall tone of this passage?

A. Excited    B. Serious    C. Ironical   D. Casual