The year is 2094. It has been announced that a comet (彗星) is heading towards the Earth . Most of it will miss our planet, but two pieces will probably hit the southern half of the Earth.
On 17 July , a piece four kilometers wide enters the Earth’s atmosphere (大气层) with a massive explosion . About half of the piece is destroyed, but the remaining part hits the South Atlantic at 200 times the speed of sound. The sea boils and a huge hole is made in the sea bed. Huge waves are created and spread outwards from the hole. The wall of water, a kilometer high, rushes towards southern Africa at 800 kilometers an hour. Cities on the African coast are totally destroyed and millions of people are drowned.
Before the waves reach South America, the second piece of the comet lands in Argentina. Earthquakes and volcanoes are set off in the Andes Mountains. The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles, San Francisco and Tokyo are completely destroyed by earthquakes. Millions of people in the southern half of the earth are already dead, but the north won’t escape for long. Because of the explosions, the sun is hidden by clouds of dust, temperatures around the world fall to almost zero .Crops are ruined. The sun won’t be seen again for many years. Wars break out as countries fight for food. A year later, no more than 10 million people remain alive.
Could it really happen? In fact, it has already happened more than once in the history of the Earth. The dinosaurs were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a piece of object in space. The dinosaurs couldn’t live through the cold climate that followed and they died out. Will we meet the same and?What is mainly described in the passage?
| A．A historic discovery. | B．An event of imagination |
| C．A research on space. | D．A scientific adventure. |
When the first piece hits the South Atlantic, it causes ________ .
| A．an earthquake | B．damages to cities |
| C．an Earth explosion | D．huge waves |
Why can’t the northern half of the earth escape for long?
| A．Because the land is covered with water |
| B．Because the light and heat from the sun can not reach the earth. |
| C．Because people there can not live at the temperature of zero. |
| D．Because wars break out among countries. |
By giving the example of dinosaurs, the author tries to prove ________ .
| A．animals could not live in the cold climate |
| B．what happened 65 million years ago was an invented story |
| C．the human beings will die out in 2094 |
| D．the Earth could be hit by other objects in space |
One day, a poor boy who was trying to pay his way through school by sending newspapers door to door, was so hungry that he decided to beg for a meal at the next house.
However, he lost his nerve when a lovely young woman opened the door. Instead of a meal he asked for a drink of water. She thought he looked hungry so she brought him a large glass of milk. He drank it slowly, and then asked, “How much do I owe you?”
“You don’t owe me anything,” she replied. “Then I thank you from the bottom of my heart.” With these words, Howard Kelly left that house.
Years later the woman became badly ill and was finally sent to the hospital in a big city. Dr. Howard Kelly, now famous, was called in. When he heard the name of the town she came from, a strange light filled his eyes. Dressed in his doctor’s clothes, Dr. Kelly went into her room and recognized her at once. From that day on, he gave special attention to her, and decided to do his best to save her life.
At last the woman was saved. Dr. Kelly asked the business office to pass the final bill to him. He looked at it and then wrote something on the side. The bill was sent to the woman’s room. She was afraid to open it because she was sure that it would take the rest of her life to pay for it off. Finally she looked, and the note on the side of the bill caught her attention. She read these words:
“Paid in full with a glass of milk, Dr. Howard Kelly.”
Tear of joy flooded her eyes.The boy sent newspapers door to door in order to ________.
| A．continue his schooling |
| B．become a famous doctor |
| C．thank the woman for her kindness |
| D．support his poor family |
Which is true about the boy and the woman?
| A．He was too shy to ask her for some water. |
| B．She thought he was not hungry but thirsty. |
| C．She wanted him to pay for the glass of milk. |
| D．She never thought he would save her life later. |
After Dr. Kelly knew who the woman was, he ________.
| A．began to take good care of her himself |
| B．told her she once gave him a glass of milk |
| C．decided to try his best to save her |
| D．asked for her bill and paid it off at once |
The best title for this passage is ________.
| A．A Warm-hearted Woman | B．A Glass of Milk |
| C．The Final Bill | D．A Famous Doctor |
Language is always changing. In a society where life continues year after year with few changes, the language does not change either. The earliest known languages had difficult grammar but a small, limited vocabulary. Over the century, the grammar changed, and the vocabulary grew. For example, the English and Spanish people who came to America during the sixteenth century gave names to all the new plants and animals they found. In this way, hundreds of new words were introduced into English and Spanish vocabularies. Today life is changing very fast, and language is changing fast too.
There are several major(主要) language families in the world. Some scientists say there are nine main families, but other scientists divide them differently. The languages in each family are connected, and scientists think that they came from the same parent language. About 3 percent of the people in the world speak languages that are not in these major families.The early language had ________.
| A．a lot of problems | B．words and easy grammar |
| C．words but no grammar | D．grammar but not many words |
In the next few hundred years we can expect language to _____.
| A．stay exactly the same | B．change a great deal |
| C．change only a little | D．ask more words and drop some grammar |
What this article shows is that _____.
| A．languages change fast |
| B．languages really don't want to change |
| C．language really with changes in society |
| D．Spanish and English change |
In Canada you can find dogs，cats，horses，etc. in almost every family. These are their pets. People love these pets and have them as their good friends. Before they keep them in their houses，they take them to animal hospitals to give them injections（注射）so that they won’t carry disease. They have special animal food stores， though they can get animal food in almost every kind of store. Some people spend around two hundred Canadian dollars a month on animal food. When you visit people’s houses，they would be very glad to show you their pets and they are very proud of them. You will also find that almost every family has a bird feeder in their garden. All kinds of birds are welcomed to come and have a good meal. They are free to come and go and nobody is allowed to kill any animal in Canada. They have a law against killing wild animals. If you killed an animal，you would be punished. If an animal happened to get run over by a car，people would be very sad about it.
People in Canada have many reasons to like animals. One of them might be：Their family ties are not as close as ours. When children grow up，they leave their parents and start their own life. Then the old will feel lonely. But pets can solve this problem. They can be good friends and never leave them alone. The passage mainly talks about ＿＿＿＿＿＿＿＿ .
| A．how to keep disease from pets |
| B．pets in Canada |
| C．how to take good care of pets |
| D．life of the old in Canada |
InCanada，childrenleavetheirparentswhenthey grow up because ＿＿＿.
| A．they don’t love their parents any more |
| B．they can only find jobs far from their parents |
| C．their parents’ houses are too small |
| D．they wouldn’t depend on their parents any more |
Which of the following is TRUE？
| A．Peoplebuyanimal foodonlyattheanimalfood stores. |
| B．Pets eat better than people. |
| C．Almost every family has a birdcage in his house. |
| D．Any bird can come to the bird feeders to eat. |
Scientists are trying to make the deserts into good land again. They want to bring water to the deserts， so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the desert in time.
Why is more and more land becoming desert？Scientists think that people make deserts. People are doing bad things to the earth.
Some places on the earth don’t get much rain. But they still don’t become deserts. This is because some green plants are growing there. Small green plants and grass are very important to dry places. Plants don’t let the sun make the earth even drier. Plants do not let the wind blow the dirt away. When a bit of rain falls，the plants hold the water. Without plants，the land can become desert more easily. Deserts ＿＿＿＿＿＿＿＿ .
| A．never have any plants or animals in them |
| B．can all be turned into good land before long |
| C．are becoming smaller and smaller |
| D．get very little rain |
Smallgreenplantsareveryimportanttodryplaces because ＿＿＿＿＿＿.
| A．they don’t let the sun make the earth even drier |
| B．they don’t let the wind blow the soil away |
| C．they hold water |
| D．All of the above. |
Landisbecomingdesertlittlebylittlebecause ＿＿＿＿＿＿.
| A．plants can’t grow there |
| B．there is not enough rain |
| C．people haven’t done what scientists wish them to do |
| D．scientists know little about the deserts |
After reading this passage， we learn that ＿＿＿＿＿＿＿＿.
| A．plants can keep dry land from becoming desert |
| B．it is good to get rid of the grass in the deserts |
| C．all places without much rain will become deserts |
| D．it is better to grow crops on dry land than to cut them |
When I was small and my grandmother died, I couldn’t understand why I had no tears. But that night when my dad tried to cheer me up, my laugh turned into crying.
.So it came as no surprise to learn that researchers believe crying and laughing come from the same part of the brain. Just as laughing has many health advantages, scientists are discovering that so, too, does crying.
Whatever it takes for us to reduce pressure is important to our emotional (情感的) health, and crying seems to study found that 85 percent of women and 73 percent of men report feeling better after crying.
Besides, tears attract help from other people. Researchers agree that when we cry, people around us become kinder and friendly and they are more ready to provide support and comfort. Tears also enable us to understand our emotions better; sometimes we don't even know we' re very sad until we cry. We learn about our emotions through Crying, and then we can deal with them.
Just as crying can be healthy, not crying — holding back tears of anger, pain or suffering — can be bad for physical (身体的) health, Studies have shown that too much control of emotions can lead to high blood pressure, heart problems and some other illnesses. If you have a health problem, doctors will certainly not ask you to cry. But when you feel like crying, don't fight it. It's a natural— and healthy — emotional response (反应).Why didn't the author cry when her grandmother died?
| A．Because her father did not --ant her to feel too sad. |
| B．Because she did not love her grandmother. |
| C．Because she was too shy to cry at that time. |
| D．Tie author doesn’t give the explanation. |
According to the author, which of the following statements is true?
| A．Crying is the best way to get help from others. |
| B．Fighting back tears may cause some health problems. |
| C．We will never know our deep feelings unless we cry. |
| D．We must cry if we want to reduce pressure. |
What might be the most suitable title for the text?
| A．Power of Tears | B．How to Keep Healthy |
| C．Why We Cry | D．A New Scientific Discovery |