网址：http://m.1010jiajiao.com/timu_id_552350[举报]
One reaction to all the concern about tropical deforestation（砍伐森林） is a blank（茫然的） stare that asks the question, "Since I don't live there, what does it have to do with me?"
The answer is that your way of life, wherever you live in the world, is tied to the tropics in many ways. If you live in a house, wash your hair, eat fruits and vegetables, drink soda, or drive a car, you can be certain that you are affected by the loss of tropical forests.
Biologically, we are losing the richest regions on earth when, each minute, a piece of tropical forest, the size of ten city blocks, disappears. As many as five million species of plants, animals, and insects (40 to 50 percent of all living things) live there, and are being lost faster than they can be found and described. Their loss is immeasurable.
Take rubber for example. For many uses, only natural rubber from trees will do. Synthetics are not good enough. Today over half the world's commercial rubber is produced in Malaysia and Indonesia, while the Amazon's rubber industry produces much of the world's four million tons. And rubber is an important material in making gloves, balloons, footwear and many sporting goods. Thousands of other tropical plants are valuable for their industrial use.
Many scientists strongly believe that deforestation contributes to the greenhouse effect -- or heating of the earth from increased carbon dioxide in the atmosphere. As we destroy forests, we lose their ability to change carbon dioxide into oxygen.
Carbon dioxide levels could double within the next half-century, warming the earth by as much as 4.5 degrees. The result? A partial melt-down of polar ice caps, raising sea levels as much as 24 feet; even 15 feet could threaten anyone living within 35 miles of the coast. Unbelievable? Maybe. But scientists warn that by the time we realise the severe effects of tropical deforestation, it will be 20 years too late.
Can tropical deforestation affect our everyday lives? Now, you should have got the answer.
The underlined word "synthetics" probably means .
A. natural rubber B. tropical materials
C. man-made material D. commercial rubber
In the last paragraph the author tries to .
A. tell people how to avoid the tropical deforestation
B. persuade people to buy something synthetic
C. show us how important it is to protect the tropical forests
D. let people realise the effect of tropical deforestation
According to the passage, which of the following is NOT true?
A. The forests are losing their function in turning carbon dioxide into oxygen.
B. Many of our daily uses are related to the tropical forests.
C. Tropical plants can be used to make industrial products.
D. High carbon dioxide levels will make the earth warmer.
The author's attitude towards the tropical deforestation is .
A. puzzling B. cold C. supporting D. opposed
Which of the following might be the best title for the passage?
A. Tropical Forests B. Saving the Tropical Forests
C. Tropical Forests and Our Life D. The Greenhouse Effects
查看习题详情和答案>>It's time to be water efficient!
As populations increase across Australia and the rest of the world, demand for water will also increase. If we don’t reduce each individual’s demand for water (both directly and through embodied water) the water situation will become dire.
It is obvious that we cannot increase demands for water much more without detrimental(有害的) effects to the environment, society and the economy.
It’s all too easy to blame someone else for the water situation –“if 70% of water is used for agriculture then that’s what we should target” – but it’s not that easy. We all depend on the food and resources that agriculture provides, and while there are definitely opportunities to increase water efficiency on the farm, the solution will take more than that.
We each share responsibility for the sustainable management of our water resources, which means using less water at home, in the workplace, at school, on holidays, on the farm, … everyone, everywhere, every time.
It's time to become water efficient! This involves reassessing our relationship with water, and learning to use it more sparingly. On the most basic level, it requires a behavioural（行动的） change, and assigning a value to water that truly reflects its worth.
We can also unlock economic benefits of being water efficient. There are many real world examples given in the case studies on this site.
Everybody has a responsibility to save water, if future generations are to enjoy a similar standard of living to the one we enjoy now. In fact, many of the impacts associated with water use are likely to have an effect on our own lives!
www.savewater.com.au has been designed to help you respond to the challenge to become water efficient. It acts as a central repository for relevant information and further advice, so that you can actually achieve significant savings. It also showcases those companies with products that will assist you in your goal.
Can you infer where this passage is from?
A. newspaper B. TV programme C. Radio broadcast D. Internet
What can we do to save water?
A. find more water resources
B. use less water everywhere, every time
C. realize the importance of saving water
D. unlock economic benefits of being water efficient
What is not the reason to save water?
A. There are more and more people in the world.
B. The water resources are limited.
C. Agriculture needs more water.
D. The water is very important for us.
What is the main idea of this passage?
A. Water is very important for the human.
B. Everybody has a responsibility to save water.
C. It's time to be water efficient.
D. Let’s save water for our future generations.
查看习题详情和答案>>One morning I wasted nearly an hour watching a tiny ant carry a huge feather．Several times, it 36 several obstacles in its path．And after a momentary pause it would make the necessary detour （绕道）． 37 one point, the ant had to cross a crack about 10mm wide．After some 38 thoughts, the ant laid the feather over the crack, walked 39 it and picked the feather up on the other side, then continued on its way．I was 40 by the cleverness of this ant．It was only a small insect, lacking in 41 yet equipped with a brain to reason, explore, discover and overcome． 42 this ant, like the other two-legged creatures 43 on the earth, also shares human failings．
After some time the ant 44 reached its destination --- a flower bed and a small hole that was the entrance to its 45 home．It was there that the ant met its 46 ．How could that large feather possibly 47 such a small hole? Of course, it couldn’t．So the ant, after all this 48 and using great brightness, overcoming problems a1l along the way, just gave up the 49 and went home．The ant had not thought the problem through 50 it began its journey and in the end the feather was 51 more than a burden．Isn’t our 52 like that?
We worry about our families; we worry about the 53 of money; and we worry about all kinds of things．These are all burdens --- the things we pick up along life’s path, and drag them around the obstacles and over the cracks that life will bring, only to 54 that at the destination they are 55 and we can’t take them with us．
A．came across B．came about C．got over D．dealt with
A．For B．At C．To D．With
A．brave B．tiring C．short D．magic
A．through B．across C．beside D．behind
A．satisfied B．frightened C．annoyed D．attracted
A．height B．size C．depth D．length
A．Therefore B．Otherwise C．But D．Moreover
A．living B．working C．sleeping D．walking
A．finally B．probably C．suddenly D．easily
A．lonely B．comfortable C．underground D．big
A．partner B．parent C．match D．friend
A．fix B．fit C．fill D．suit
A．trouble B．pleasure C．decision D．matter
A．insect B．problem C．feather D．hole
A．before B．after C．until D．once
A．everything B．anything C．something D．nothing
A．study B．aim C．dream D．1ife
A．waste B．lack C．worth D．danger
A．think B．wonder C．warn D．find
A．bad B．useless C．meaningful D．practical
查看习题详情和答案>>One warm May day, two eighteen – year – old students from San Francisco State College decided to cool off with a swim at Bakers’ Beach. The two students were named Robert Kogler and Shirley O’Neill. They headed out to sea for a distance of 50 meters. Robert was in front.
“Suddenly, I heard him scream,” Shirley recalls. “I looked round and saw this great grey thing going up in the air. The water seemed to be alive.”
Robert screamed again. “It’s a shark! Get out of here!”
An eye – witness, Army Sergeant Leo P. Day was on guard at the nearby army post. He saw exactly what happened next. “I could see this boy struggling with the shark in the water,” he said. “The sea was red with blood. He was shouting and signaling someone to go back, go back. Then I saw the girl. She was swimming towards him. She completely ignored his warning.”
Shirley reached Robert, and tried to take his hand.
“When I pulled, all I could see was his arm, handing by a thread,” she said.
So she put her arm about Robert’s back, and started to swim towards the shore. She kept praying “Don't’ let it attack again!” That journey to the shore seemed to last for hours. At last, as they neared the shore, a fisherman threw them a line, and pulled them both the rest of the way.
The young man had lost a lot of blood, and died two and a half hours later. From the teeth marks, experts identified the attacker as a Great White Shark.
For what Sergeant Day called “the greatest exhibition of bravery I have ever seen,” the President of the US gave Shirley a medal for bravery.
When Robert was attacked by a shark Shirley ? .
A．was swimming in the sea
B．was watching him on the shore
C．was on guard at the nearby army post
D．was shouting and struggling with a shark, too
Choose the right time order of the following events in the story.
a. Army Sergeant saw the girl swimming to the boy.
b. Shirley saw a great grey thing.
c. They headed out to sea.
d. Robert died.
e. A fisherman threw them a line.
f. He saw a boy struggling with a shark.
A．b, c, e, d, f, a B．c, a, f, d, e, b C．b, c, f, a, d, e D．c, b, f, a, e, d
We can learn from the passage that ______. .
A．the two students were brave and considerate
B．the fisherman was adventurous and helpful
C．the experts didn’t do much research on sharks
D．the Sergeant cared too much about his own life
Which of the following is true?
A．The President of the US gave Shirley a medal for bravery.
B．They were swimming in a lake.
C．There is no eye – witness.
D．Shirley saved Robert’s life.
查看习题详情和答案>>One day an ordinary dog appeared in the ticket office at Campiglia, a busy railroad station on Italy's main line. A ticket agent named Elvio greeted the strange dog in a friendly way, so the dog decided to stay. From that day on, the dog became Elvio's shadow and was named Lampo.
Lampo kept Elvio Company (陪伴) inside the ticket office. When the weather was warm, he would enjoy himself in the sun on the train platform. When it came time for Elvio to return home on the train at night, Lampo ran after the train for a long way and then sadly gave up and went back to the station.
One night as Elvio was riding home on the train, he noticed that Lampo was lying at his feet. Afraid that the conductor would see the dog on the train and shout at him, Elvio pushed Lampo under a seat. Luckily, the conductor did not notice the dog. Lampo came home with Elvio and met his family. Then, after a short visit, Lampo boarded the last train and went back to the station. Lampo quickly learned all of the train schedules (时刻表). He would ride home from work with Elvio every night and then ride back to the station alone. Every morning, Lampo arrived at Elvio's house in time to walk his young daughter, Mivna, to school. The faithful dog would then take another train to travel again to accompany Mivna home from school at 11:30.
Soon, Lampo began to take the train all over Italy. Lampo became famous among the men who worked on the railroad, as his journeys became more frequent, complicated and mysterious. No one could explain why he traveled or how he always found the right train back to Campiglia. People decided that Lampo was a unique dog.
Some of the railroad officials were against Lampo's illegal travels. They were afraid he would bite a passenger or cause some other problems. Finally, the stationmaster threatened to call the dogcatcher if Elvio didn't get rid of the dog.
Elvio decided to put Lampo on a train going as far away as possible. Months went by and Lampo did not come back. Mivna missed him very much and prayed for his return. Finally one day, a sad, very thin, tired Lampo returned to Elvio's office. Everyone, even the stationmaster, was sorry about what had happened. From then on, Lampo was allowed to ride the trains whenever he wanted. After seven years, Lampo grew old, and he began to need Elvio's help to board the train.
One day Lampo was seen lying dead on the tracks. A year later, a life sized statue of Lampo was set up at Campiglia station.
66. The first time Lampo took the train, Elvio was ______.
A. delighted that he was lucky
B. afraid the dog would bite someone
C. afraid the conductor would see him and be angry
D. excited that Lampo would soon meet his family
67. Lampo's traveling all over Italy caused people to believe that _______.
A. he could read the train schedules B. he was famous in the country
C. Elvio secretly helped him D. he was a very special dog
68. The stationmaster threatened that if Elvio didn't get rid of the dog, _______.
A. Elvio would be fired B. Lampo would be put on the train tracks
C. the stationmaster would send him away D. a dogcatcher would be called
69. Which of the following is NOT mentioned in the story?
A. The dog was once sent away by Elvio.
B. The dog finally won the stationmaster's heart.
C. The dog was faithful to his master.
D. The dog died when he was seven years old.
70. The author suggests that a statue of Lampo was set up because _______.
A. the stationmaster felt sorry about what had happened
B. he had been a friend to travelers
C. it would bring good luck to the town
D. Elvio offered money to set up the statue
查看习题详情和答案>>