完形填空

阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。答案写在答题卡上。

Dear Max,

Your mother and 1 don't yet have the words to describe the hope you give us for the future, but we hope you rill be happy and healthy so you can ________ enjoy the life ahead of you.

Like all________ ,we want you to grow up in a world better than ours today.

Although headlines often focus on what'________,in many ways the world is getting better.

f-Iealth is ________ .Poverty is shrinking. Knowledge is growing. People are connecting.

We will try our ________to make the world a better place, not only because we love you, but aLSO because we believe ali children have the ________ to be loved and cared about.

But right now, the world doesn't always ________ the biggest chances and problems children today willse ________ in the future. I will continue to work as Facebook’s CEO for many, many years to come,________ some problems are so important that we have to deal with them now.

Consider diseases. Today we spend about 50 times more money_________ people who are sick than we use in research so you won't get sick in the first place.

Medicine has only been a real science for less than 100 years, and we’ve already seen complete cures(治愈)for some diseases and good progress for others. ________ technology develops, we have a real chance at curing all or mole of the other diseases in the next 100 years.

Curing diseases will ________ time. Over short periods of five or ten years, it may not seem like we're making a ________ ·But in the long run, trees planted now will grow, and one day, you or your children wilt see what we can only imagine; a world without diseases.

Max, we love you and really want to ________ the world a better place for you and all children. We wish you a life ________ with the same love, hope and joy you give us. We can't wait to see what you bring to this world.

Love,

Mom and Dad

1.A. fully B. rarely C. likely D. lively

2.A. friends B. teachers C. parents D. doctors

3.A. wrong B. normal C. improving D. nice

4.A. talking B. aiming C. anxious D. breaching

5.A. heart B. best C. greatest D. pain

6.A. interest B. duty C. effort D. right

7.A. begin with B. focus on C. tell by D. believe in

8.A. give B. bring C. taste D. face

9.A. so B. or C. but D.and

10.A. finding B. directing C. loving D. treating

11.A. After B. As C. For D. Before

12.A. waste B. spend C. take D. pay

13.A. progress B.fortune C. scene D. difference

14.A. carry B. leave C. study D.decide

15.A. filled B. helped C. compared D. agreed

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Before going outside in the morning, many of us check a window thermometer(温度计)for the temperature. This helps us decide what to wear. _____1.__. We want our food to be a certain coldness in the refrigerator. We want it a certain hotness in the oven. If we don’t feel well, we use a thermometer to see if we have a fever. We keep our rooms a certain warmth in the winter and a certain coolness in the summer.

Not all the thermometers use the same system to measure temperature. We use a system called the Fahrenheit scale. But most other countries use the Centigrade scale. Both systems use the freezing and boiling points of water as their guide.___ 2.___ .

The most common kind of thermometer is made with mercury(水银)inside a clear glass tube. As mercury (or any other liquid ) becomes hot, it expands. As it gets colder, it contracts(收缩). That is why on hot days the mercury line is high in the glass tube.____ 3.______.

First. Take a clear glass juice bottle that has a cap ; fill the bottle with coloured water. Tap a hole in the center of the cap using a hammer and thick nail. Put the cap on the jar. Then stick a plastic straw(吸管) through the nail hole. __4.____.

Finally. Place a white card on the outside of the bottle and behind the straw. Now you can see the water lever easily. _____5._.

As the temperature goes down, the water will contract, and the lever in the straw will come down. Perhaps you will want to keep a record of the water lever in the straw each morning for a week.

A.We use and depend on thermometers to measure the temperature of many other things in our daily lives.

B.Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled.

C.Now that you know this rule you can make a thermometer of your own that will work.

D.The water will rise in the straw. As the temperature of the air goes up, the water will expand and rise even higher.

E.They label these in different ways. On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees. On the Celsius scale water freezes at 0 degrees and boils at 100degrees.

F.Take wax (you may use an old candle if you have one) and melt some of it right where the straw is struck into the cap to seal(把..粘住) them together.

G.People use thermometers which are made by themselves when travelling around the world.

Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?

UBC Professor Simard explains how trees are much more complex than most of us ever imagined .Although Charles Darwin thought that trees are competing for survival of the fittest, Simard shows just how wrong he was. In fact, the opposite is true: trees survive through their co-operation and support, passing around necessary nutrition “depending on who needs it”.

Nitrogen(氮) and carbon are shared through miles of underground fungi(真菌) networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons(神经元)in our brains, and when one tree is destroyed, it affects all.

Simard talks about “mother trees”, usually the largest and oldest plants on which all other trees depend .She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow .When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on which they feed, we are reducing the chances of survival for the entire forest.

“We didn't take any notice of it .” Simard says sadly .“Dying trees move nutrition into the young trees before dying, but we never give them chance.” If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.

1.What would be the best title for the passage?

A. Old Trees Communicate Like Humans

B. Young Trees Are In Need Of Protection

C. Trees Contribute To Our Society

D. Trees Are More Complex Than You Think

2. In Simard's opinion, trees _______

A. compete for survival

B. protect their own wealth

C. depend on each other

D. provide support for dying trees

3.We can learn from the passage that .

A. “mother trees” are usually of no use to other trees.

B. Charles Darwin had the same thought as Simard.

C. if “mother trees” are cut down, the survival for the entire forest will be affected.

D. people know much about the complex “tree societies”.

4.The underlined word “it” in the last paragraph refers to .

A. how “tree societies” work

B. how trees grow old

C. how forestry industry develops

D. how young trees survive

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