题目内容

Four Wild Animal Species Were Endangered

Maybe you can still see them at the zoo. But that doesn’t mean they’re doing alright in the wild.

Tigers

All six tiger species are endangered, with Sumatran tigers and South Chin tigers at a seriously endangered status. The main reasons for their population decline are illegal hunting and destroyed habitats(栖息地), as humans clear forests to gather timber(木材)and build roadways. Only about 3890 tigers presently live in the wild.

Ground squirrels

That’s right, even squirrels are endangered, specifically the San Joaquin ground squirrel. Native to California, USA, these guys have been disappearing since 1979 on account of the construction and human developments going through their habitat. Their total population is unknown , but it could be anywhere between 124000 and 413000.

Giraffes

The International Union for the Conservation of Nature recently put giraffes at a vulnerable status, the level just before endangered. The giraffe population has declined 40 percent in the last 30 years, primarily due to loss of habitat and illegal hunting. Some giraffes are killed just for their tails, which are considered status symbols in Africa.

Asian elephants

The main threat to Asian elephants, one of the most intelligent animals, is their shrinking habitat. As the human population grows, people invade their land to build roads and railway tracks. Elephants in Myanmar are at an especially high risk for being captured and traded or used illegally in the tourist industry. Fewer than 50000 are left on the entire continent.

1.What is the total population of tigers living in the wild?

A. Around 3890.

B. 50000.

C. 124000.

D. 413000.

2.Which of the following is considered one of the most intelligent animals?

A. Tigers.

B. Giraffes.

C. Ground squirrels.

D. Asian elephants.

3.What is the common threat to the four wild animals?

A. Illegal hunting.

B. Disturbed habitat.

C. Developing tourism.

D. Unnecessary construction.

4.Which word can best describe the present situation for protecting wild animals?

A. Satisfactory.

B. Optimistic.

C. Urgent.

D. Stable.

练习册系列答案
相关题目

Have you ever noticed that the more you have the more you want? Let’s face it. Thinking our life is good enough doesn’t come naturally to many people. When we have high expectations of everything in life we will run into disappointment. Only when we are aware that needs are different from desires can we live with satisfaction. Here are a few ideas to help you be happier with what you have and who you are.

Focus on what you are thankful for. Most people want things to be better than they are, or when things are going well, we forget to appreciate what we have. Learn to reflect on how much better things are than they could be. Focus on what you are thankful for. Write down 5 things you are grateful for right now.

When we hold onto regrets from decisions we have made, it can really poison our well-being. Many people regret something they can no longer change, which ends up holding them back from moving forward in a more positive manner. What happened in the past is done and gone, so work to stay present and be mindful of the current moment to find more joy and fulfillment.

When we use other people as the measuring stick for our personal success and quality of life we are likely to be less satisfied. Social comparisons can provide useful information when we try to learn from others, but they also hold our perspective in a discontented position. Compare yourself less with others so you can be satisfied more.

When you are focused on your big ambitions and future goals you might elide the daily pleasures that surround you. Learn to slow down and absorb the wonder and beauty around you. Stay present and focus on the task you’re undertaking at the moment. Don’t let the life pass you by because you’re always on the go and distracted by ambition.

Practice looking at life through the lens of contentment and it will become more natural.

1.How can we live with contentment?

A. To change our lifestyle.

B. To have a motivation in life.

C. To give less attention to what we are grateful for.

D. To realize the difference between needs and desires.

2.What’s the main idea of Paragraph 3?

A. Make wise decisions. B. Know the present situation

C. Let go of regrets. D. Remember the past.

3.The underlined word “elide”(in Paragraph 5) probably means “__”.

A. enjoy B. change C. create D. neglect

4.What should you do to put yourself in a good mood?

A. Make time for simple pleasures. B. Learn from successful people.

C. Focus on your future goals. D. Create chance to learn more.

Most episodes (片段) of absent-mindedness—forgetting where you left something or wondering why you just entered a room—are caused by a simple lack of attention.” says Schacter. “You’re supposed to remember something, but you haven’t encoded it deeply.”

“Encoding”, Schacter explains, “is a special way of paying attention to an event that has a major effect on remembering it later. Failure to encode properly can create annoying situations. If you put your mobile phone in a pocket, for example, and don’t pay attention to what you did because you’re involved in a conversation, you’ll probably forget that the phone is in the jacket now hanging in your wardrobe (衣柜).” “Your memory itself isn’t failing you,” says Schacter. “Rather, you didn’t give your memory system the information it needed.”

Lack of interest can also lead to absent-mindedness. “A man who can recite sports statistics from 30 years ago,” says Zelinski, “may not remember to drop a letter in the mailbox.” Women have slightly better memories than men, possibly because they pay more attention to their environment. And memory depends on just that.

“Reminders can help prevent absent-mindedness,” says Schacter. “But be sure the reminder is clear and available,” he says. If you want to remember to take medicine with lunch, put it on the kitchen table— don’t leave it in the medicine chest and write yourself a note that you keep in a pocket.

Another common episode of absent-mindedness: walking into a room and wondering why you’re there. Most likely, you were thinking about something else. “Everyone does this from time to time,” says Zelinski. The best thing to do is to return to where you were before entering the room, and you’ll likely remember.

1.Why does the writer think that encoding is important?

A. It helps us understand our memory system better.

B. It enables us to remember something from our memory.

C. It expands our memory ability greatly.

D. It slows down the process of losing our memory.

2.Why can a note in the pocket hardly serve as a reminder?

A. Because it will easily get lost.

B. Because it’s not clear enough for you to read.

C. Because it’s out of your sight.

D. Because it might get mixed up with other things.

3.What do we learn from the last paragraph?

A. If we pay more attention to one thing, we might forget another.

B. Memory depends to a certain extent on the environment.

C. Doing something again helps improve our memory.

D. If we keep forgetting things, we’d better return to where we were.

4.What is the passage mainly about?

A. The process of gradual memory loss.

B. The causes of absent-mindedness.

C. The influence of the environment on memory.

D. A way of encoding and remembering.

William Green, aged 82, was making his breakfast when he heard somebody in his garden. “I went out of back door and suddenly I saw his man running towards me. He________me out of the way and took my ________from the garden shed(棚屋).” Mr. Green did not ________, as he knew he would be no match in a fight with the man. The burglar tried to cycle away, but the _______on the bike were flat so it was difficult to ride. “He kept ________the bicycle,” said Mr. Green, “at least three or four times.” ________the man had fled, Mr. Green called the police.

When they arrived, officers asked him to ________ the man, but instead he _________ to draw them a picture. “When Mr. Green started drawing,” said one of the police officers, “I knew who the ________was.” In fact, Mr. Green had worked for more than 20 years in daily newspapers, doing caricatures (漫画) of Australian footballers. “I had no _______in remembering the man’s face because he was so _______to me.” he said.

Police searched in the neighborhood with the sketch(素描) of the burglar and found him ________half an hour. The cartoon was a perfect _______of the burglar. The 34-year-old man was to be _______with theft, burglary and assault(袭击). And the _______bike was later found in a road nearby.

Police believed that this was the first time they have ________caught a suspect with a _________sketch. A senior police officer said that in the past some ________had used their mobile phones to take ________at crime scenes, but they had not been as ________.

1.A. warned B. pushed C. led D. caught

2.A. mobile phone B. wallet C. picture D. bicycle

3.A. resist B. refuse C. withdraw D. obey

4.A. wires B. wheels C. tyres D. parts

5.A. falling off B. moving away C. dropping on D. putting aside

6.A. Since B. Before C. After D. While

7.A. identify B. name C. draw D. describe

8.A. offered B. promised C. stopped D. continued

9.A. owner B. burglar C. rider D. footballer

10.A. reason B. point C. difficulty D. interest

11.A. dangerous B. friendly C. close D. strange

12.A. among B. within C. beyond D. over

13.A. partner B. likeness C. pair D. model

14.A. charged B. met C. punished D. supplied

15.A. missing B. broken C. new D. flat

16.A. even B. never C. ever D. still

17.A. beautiful B. professional C. pencil D. cartoon

18.A. criminals B. officers C. painters D. victims

19.A. actions B. photographs C. messages D. emails

20.A. exact B. smooth C. skillful D. effective

Many teenagers(青少年) feel that the most important people in their lives are their friends. They believe that their family members don’t understand them as well as their friends do.In large families, it is quite often for brothers and sisters to fight with each other and then they can only go to their friends for some ideas.It is very important for teenagers to have one good friend or a group of friends. Even when they are not with their friends, they usually spend a lot of time talking among themselves on the phone. This communication(交际)is very important in children’s growing up, because friends can discuss(讨论)something. These things are difficult to say to their family members.

However, parents often try to choose their children friends for them. Some parents may even stop their children from meeting their good friends. Have you ever thought of the following questions? Who chooses your friends?

Do you choose your friends or your friends choose you?

Have you got a good friend your parents don’t like? Your answers are welcome.

1.Many teenagers think that _ __ can understand them better.

A. friends B. brothers C. sisters D. parents

2.When teenagers have something difficult to say to their parents, they usually____.

A. stay alone at home B. fight with their parents

C. discuss it with their friends D. go to their brothers and sisters for help

3.Which of the following is the writer’s attitude(态度)?

A. Parents should choose friends for their children.

B. Children should choose everything they like.

C. Parents should understand their children better.

D. Teenagers should only go to their friends for help.

A recent study led by researchers from the National University of Singapore (NUS) has found a clear link between the color of a taxi and its accident rate. An analysis of 36 months of detailed taxi, driver and accident data from two fleets of yellow and blue taxis in Singapore suggested that yellow taxis have fewer accidents than blue taxis. The higher visibility (能见度) of yellow makes it less difficult for drivers to avoid getting into accidents with yellow taxis, leading to a lower accident rate.

The study was led by Prof Ho. To test whether there was a relationship between the color of a taxi and the number of accidents the taxi had, the research team analysed data collected by the largest taxi company in Singapore. The researchers found that yellow taxis have about 6. 1 fewer accidents per 1,000 taxis per month.

They also studied the economic effect of changing the color of the entire fleet of taxis to yellow. The Singapore taxi company involved in the study owns about 16,700 taxis in a ratio (比例) of one yellow to three blue taxis. If a commercial decision is made to switch from blue to yellow taxis, 76. 6 fewer accidents will occur per month or 917 fewer accidents per year.

Assuming an average repair cost of $1,000 per car and a downtime of six days, the color of all taxis to yellow could produce an annual saving of $2 million.

“We are eager to continue to validate (证实) the findings of our study by looking at the use of yellow in other types of public transport, such as school buses. For example, we hope to compare the accident rates of yellow school buses against those of other colors to find out if yellow is indeed a safer color for school buses. Besides, we’ re also interested to look at private-hire vehicles and do a comparison of the accident rates of vehicles that are of different colors explained Prof Ho.

1.Why do yellow taxis result in fewer accidents?

A. Because yellow signals a warning of danger.

B. Because yellow can be seen more easily.

C. Because drivers tend to he more careful in yellow taxis.

D. Because people act more quickly in yellow surroundings.

2.What’ s Prof Ho’s study based on?

A. Physical risks taxi passengers experience.

B. The economic effect of changing taxi color.

C. Personal reports from taxi drivers worldwide.

D. Data from Singapore's largest taxi company.

3.What do Prof Ho’s words in the last paragraph suggest?

A. School buses should be painted yellow.

B. Their findings are worth popularizing.

C. Their study will be furthered.

D. Yellow should be widely used in public transport,

4.What can be the best title for the text?

A. Safer to ride in yellow taxis B. Caution: yellow taxis ahead

C. Why are yellow Taxis preferred? D. How can colors help prevent accidents?

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网