Humpback whales
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Humpback whales are sometimes called performers of the ocean. This is because they can make impressive movements when they dive. The name “humpback”, which is the common name for this whale, refers to the typical curve shape the whale’s back forms as it dives. Sometimes the humpback will dive with a fantastic movement, known as a breach. During breaching the whale uses its powerful tail flukes to lift nearly two-thirds of its body out of the water in a giant leap. A breach might also include a sideways twist with fins stretched out like wings, as the whale reaches the height of the breach. A humpback whale breathes air at the surface of the water through two blowholes which are located near the top of the head. It blows a double stream of water that can rise up to 4 meters above the water. The humpback has a small dorsal fin located towards the tail flukes about two-thirds of the way down its back. Other distinguishing features include large pectoral fins, which may be up to a third of the body length, and unique black, and white spots on the underside of the tail flukes. These markings are like fingerprints: no two are the same. Humpback whales live in large groups. They communicate with each other through complex “songs”. |
Quick Facts |
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Size: |
14m~18m in length 30~50 tons in weight |
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Living environment: |
Open ocean and shallow coastline waters |
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Migration: |
From warm tropical (热带的) waters, where they breed, to cold polar waters, where they eat. |
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Diet: |
Shellfish, plants and fish of small size |
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Hunting: |
Sometimes in groups, in which several whales form a circle under the water, blowing bubbles that form a “net” around a school of fish. The fish are then forced up to the surface in a concentrated mass. |
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Current state: |
Endangered: it is estimated that there are about 5000~7000 humpback whales worldwide. |
1.According to Quick Facts, a humpback whale ______.
A. cannot survive in waters near the shore B. doesn’t live in the same waters all the time
C. lives mainly on underwater plants D. prefers to work alone when hunting food
2.To make a breach, a humpback whale must ______.
A. use its tail flukes to leap out of the water B. twist its body sideways to jump high.
C. blow two streams of water D. communicate with a group of humpbacks.
3.From the passage we can learn that a humpback whale ______.
A. has its unique markings on it tail flukes B. has black and white fingerprints
C. gets its name from the way it hunts D. is a great performer due to its songs
The teacher who did the most to encourage me was, as it happens, my aunt. She was Myrtle C. Manigault, the wife of my mother’s brother Bill. She taught me in second grade at all-black Summer School in Camden, New Jersey.
During my childhood and youth, Aunt Myrtle encouraged me to develop every aspect of my potential, without regard for what was considered practical or possible for black females. I liked to sing; she listened to my voice and pronounced it good. I couldn’t dance; she taught me the basic dancing steps. She took me to the theatre—not just children’s theatre, but adult comedies and dramas—and her faith that I could appreciate adult plays was not disappointed.
My aunt also took down books from her extensive library and shared them with me. I had books at home, but they were all serious classics. Even as a child I had a strong liking for humour, and I’ll never forget the joy of discovering Don Marquis’s Archy & Mehitabel through her.
Most important, perhaps, Aunt Myrtle provided my first opportunity to write for publication. A writer herself for one of the black newspapers, she suggested my name to the editor as a “youth columnist”. My column, begun when I was fourteen, was supposed to cover teenage social activities—and it did—but it also gave me the freedom to write on many other subjects as well as the habit of gathering material, the discipline of meeting deadlines, and, after graduation from college six years later, a solid collection of published material that carried my name and was my passport to a series of writing jobs.
Today Aunt Myrtle is still an enthusiastic supporter of her “favourite niece”. Like a diamond, she has reflected a bright, multifaceted (多面的) image of possibilities to every pupil who has crossed her path.
1.Which of the following did Aunt Myrtle do to the author during her childhood and youth?
A. She lent her some serious classics. B. She cultivated her taste for music.
C. She discovered her talent for dancing. D. She introduced her to adult plays.
2.What does Archy and Mehitabel in Paragraph 3 probably refer to?
A. A book of great fun. B. A writer of high fame.
C. A serious masterpiece. D. A heartbreaking play.
3.Aunt Myrtle recommended the author to a newspaper editor mainly to ______.
A. develop her capabilities for writing B. give her a chance to collect material
C. involve her in teenage social activities D. offer her a series of writing jobs
4.We can conclude from the passage that Aunt Myrtle was a teacher who ______.
A. trained pupils to be diligent and well-disciplined
B. gave pupils confidence in exploiting their potential
C. emphasized what was practical or possible for pupils.
D. helped pupils overcome difficulties in learning
Everyone in business has been told that success is all about attracting and retaining (留住) customers. It sounds simple and achievable. But, 50 , words of wisdom are soon forgotten. Once companies have attracted customers they often 51 the second half of the story. In the excitement of beating off the competition, negotiating prices, securing orders, and delivering the product, managers tend to become carried away. They forget what they regard as the boring side of business— 52 that the customer remains a customer.
53 to concentrate on retaining as well as attracting customers costs business huge amounts of money annually. It has been estimated that the average company loses between 10 and 30 per cent of its customers every years. In constantly changing 54 , this is not surprising. What is surprising is the fact that few companies have any idea how many customers they have lost.
Only now are organizations beginning to wake up to those lost opportunities and calculate the 55
implications. Cutting down the number of customers a company loses can make a big 56 in its performance. Research in the US found that a five per cent decrease in the number of defecting (流失的) customers led to 57 increases of between 25 and 85 per cent.
In the US, Domino’s Pizza estimates that a regular customer is worth more than $5,000 over ten years. A customer who receives a poor quality product or service on their first visit and 58 never returns, is losing the company thousands of dollars in 59 profits (more if you consider how many people they are likely to tell about their bad experience).
The logic behind cultivating customer 60 is impossible to deny. “In practice most companies’ marketing effort is focused on getting customers, with little attention paid to 61 them”, says Adrian Payne of Cornfield University’ School of Management. “Research suggests that there is a close relationship between retaining customers and making profits. 62 customers tend to buy more, are predictable and usually cost less to service than new customers. Furthermore, they tend to be less price 63 , and may provide free word-of-mouth advertising. Retaining customers also makes it 64 for competitors to enter a market or increase their share of a market.
1.A. in particular B. in reality C. at least D. first of all
2.A. emphasize B. doubt C. overlook D. believe
3.A. denying B. ensuring C. arguing D. proving
4.A. Moving B. Hoping C. Starting D. Failing
5.A. markets B. tastes C. prices D. expenses
6.A. culture B. social C. financial D. economical
7.A. promise B. plan C. mistake D. difference
8.A. cost B. opportunity C. profit D. budget
9.A. as a result B. on the whole C. in conclusion D. on the contrary
10.A. huge B. potential C. extra D. reasonable
11.A. beliefs B. loyalty C. habits D. interest
12.A. altering B. understanding C. keeping D. attracting
13.A. Assumed B. Respected C. Established D. Unexpected
14.A. agreeable B. flexible C. friendly D. sensitive
15.A. unfair B. difficult C. essential D. convenient
How would you like to wear the same underwear (内衣裤) for weeks? Owing to the work that has gone into developing intelligent materials, this may not be as 41 as it sounds. Self-cleaning clothes have now been created, and these new materials provide 42 resistance to dirt as well as water. As a result, they require much less cleaning than traditional materials.
The creation of self-cleaning clothes provides an example of how nature helps scientists develop better products. This self-cleaning nature is known as the “lotus effect”. The name comes, of course, from the lotus leaves, which are famous for growing in muddy lakes and rivers while remaining almost 43
clean. By observing nature, scientists are 44 the qualities of the lotus leaves to the materials they have engineered. Because of this, some remarkable new products have been 45 . Among them are special windows that are resistant to dirt and water. A special 46 on these windows not only prevents dirt from sticking to their surfaces, but also allows dust to be easily washed off by the rain. In fact, these new windows have already been 47 to some cars. Even when traveling at high speed through rain, these cars never have to use their windshield wipers (雨刮器).
Although we have already seen some practical applications, even more dramatic 48 will be made in the future, and they will, perhaps, change our world completely. Undoubtedly, technology is an important development, and it will have an even bigger 49 on our lives.
Today we have chat rooms, text messaging, emailing… but we seem ______ the art of communicating face-to-face.
A. losing B. to be losing C. to be lost D. having lost
You’ll find taxis waiting at the bus station ______ you can hire to reach your host family.
A. which B. where C. when D. as
