It is easy for us to tell our friends from our enemies. But can other animals do the same? Elephants can! They can use their sense of vision and smell to tell the difference between people who pose a threat and those who do not.
In Kenya, researchers have found that elephants react differently to clothing worn by men of the Maasai and Kamba ethnic groups. Young Maasai men spear animals and thus pose a threat to elephants; Kamba men are mainly farmers and are not a danger to elephants.
In an experiment conducted by animal scientists, elephants were first presented with clean clothing or clothing that had been worn for five days by either a Maasai or a Kamba man. When the elephants detected the smell of clothing worn by a Maasai man, they moved away from the smell faster and took longer to relax than when they detected the smells of either clothing worn by Kamba men or clothing that had not been worn at all.
Garment color also plays a role, though in a different way. In the same study, when the elephants saw red clothing not worn before, they reacted angrily, as red is typically worn by Maasai men. Rather than running away as they did with the smell, the elephants acted aggressively toward the red clothing.
The researchers believe that the elephants’ emotional reactions are due to their different interpretations of the smells and the sights. Smelling a potential danger means that a threat is nearby and the best thing to do is run away and hide. Seeing a potential threat without its smell means that risk is low. Therefore, instead of showing fear and running away, the elephants express their anger and become aggressive.
1.According to the passage, which of the following statements is true?
A. Maasai people are a threat to elephants.
B. Kamba people raise elephants for farming.
C. Both Kamba and Maasai people are elephant hunters.
D. Both Kamba and Maasai people traditionally wear red clothing.
2.How did the elephants react to smell in the study?
A. They attacked a man with the smell of new clothing.
B. They needed time to relax when smelling something unfamiliar.
C. They became anxious when they smelled Kamba-scented clothing.
D. They were frightened and ran away when they smelled their enemies.
3.What is the main idea of this passage?
A. Elephants attack people who wear red clothing.
B. Elephants use sight and smell to detect danger.
C. Scientists are now able to control elephants’ emotions.
D. Some Kenyan tribes understand elephants’ emotions very well.
4.What can be inferred about the elephant’s behavior from this passage?
A. Elephants learn from their experiences.
B. Elephants have sharper sense of smell than sight.
C. Elephants are more intelligent than other animals.
D. Elephants tend to attack rather than escape when in danger.
A man claiming to be a pastor(牧师) apparently tried to stiff a waiter on a tip, explaining that his work for God allowed him not to leave one.
A photo of the receipt, posted to Reddit.com, shows a bill for $34.93 with an automatic 18 percent gratuity(小费) (or $6.29) added above a blank space for an additional tip.
“I give God 10%,” the diner wrote on the receipt, scratching out the automatic tip. “Why do you get 18?” He then wrote “Pastor” above his signature, and an emphatic “0” where the additional tip would be. (The automatic gratuity, however, had already been added to the total.)
The Reddit user who submitted the image explained in the comments section that the receipt was part of a total bill for a party of 20, which is why the gratuity was automatically added.
“Parties up to eight ... may tip whatever they’d like, but larger parties receive an automatic gratuity," the server wrote. "It’s in the computer; it’s not something I do.”
The server added: “They had no problem with my service, and told me I was great. They just didn’t want to pay when the time came.”
Scribbling(乱涂) notes on receipts has become something of a trend. Earlier this month, the manager of a North Carolina Red Robin surprised an overdue pregnant woman by comping her meal.
“Once seated, a manager came up to us and started talking,” the woman's husband told Consumerist. “He was extremely friendly and jokingly asked my wife if this was her last meal before heading to the hospital.”
When the check came, a note from the manager next to her portion of the bill read: “MOM 2 BEE GOOD LUC.”
“It was a pleasant surprise and made my tired-of-being-pregnant wife a little more cheery,” the man said.
1.What did the pastor mean by saying, “I give God 10%. Why do you get 18?”
A. He was bargaining with the waiter.
B. He didn’t mean to pay the gratuity at all.
C. God gave him the privilege not to pay a gratuity.
D. The gratuity had already been paid by his friends.
2.What do you learn from the article?
A. The pastor paid ten percent gratuity of the meal to God.
B. A party of six diners can choose whatever gratuity they want to pay.
C. According to the husband, the wife enjoyed the process of being pregnant.
D. The pastor paid $34.93 in total for the meal.
3.What does the underlined word “stiff” mean?
A. amuse B. abuse C. persuade D. fail to pay
School was over and I was both mentally and physically tired. I sat at the very front of the bus because of 11 to get home. Sitting at the front makes you 12 out like a shiny coin in a pile of dull pennies.
Janie, the driver, tries to break the uncomfortable atmosphere by striking the match of 13 .
I try to mind my manners and 14 listen, but usually I am too busy thinking about my day. On this day, 15, her conversation was worth listening to.
“My father’s sick, ”she said to no one in 16 . 1 could see the anxiety and fear in her eyes. With a sudden change of attitude and interest, I asked, “What’s wrong with him?”
With her eyes wet and her voice tight fighting against the tears, she 17, “Heart trouble.” Her eyes 18 as she continued. “I’ve already lost my mum, so I don’t think I can 19 losing him.”
I couldn’t react. I was 20 . My heart ached for her. I sat on the old, smelly seat thinking of the great 21 my own mother was thrown into when my father died.
I saw how hard it was, 22 still is, for her. I wouldn’t like anyone to go 23 that.
Suddenly I realized Janie wasn’t only a bus driver. That was just her job. She had a 24 world of family and concerns too. I had never thought of her as anything but a driver.
I suddenly felt very25. I realized I had only thought of people as 26 as what their purposes were in my life. I paid no attention to Janie because she was a bus driver. I had judged her by her job and just considered her 27.
For all I know, I’m just another person in 28 else’s world, and may not even be important. I 29 not have been so selfish and self-centred. Everyone has places to go to, people to see and appointments to 30 . Understanding people is an art.
1.A. determination B. decision C. attempt D. anxiety
2.A. make B. think C. stand D. find
3.A. topic B. conversation C. discussion D. message
4.A. devotedly B. carelessly C. sincerely D. politely
5.A. therefore B. thus C. otherwise D. however
6.A. common B. silence C. particular D. surprise
7.A. informed B. reminded C. announced D. responded
8.A. lowered B. closed C. widened D. opened
9. A. mind B. regret C. bear D. miss
10.A. angry B. shocked C. curious D. interested
11.A. pain B. pity C. disappointment D. mercy
12.A. yet B. and C. or D. but
13.A. over B. round C. through D. without
14.A. dark B. narrow C. whole D. bright
15.A. confused B. selfish C. worried D. sad
16.A. long B. soon C. well D. far
17.A. unfit B. unselfish C. unnecessary D. unimportant
18.A. someone B. anyone C. no one D. everyone
19.A. might B. must C. need D. should
20.A. stay B. remain C. keep D. put
This article may be some advice about how to _________ oneself in society.
A. behave B. believe C. perform D. operate
The environmental problems in China may worsen if __________ unsolved.
A. making B. remained C. keeping D. left
_____ cleaning the doghouse was the last thing I wanted to do, I did it with all my efforts.
A. Although B. As C. As long as D. Now that