题目内容




C
Can you imagine a catfish bigger than a boy? There are more than 1,000 kinds of catfish;28 species are found in the United States' lakes and rivers. This huge family has some mighty strange members. Let's meet a few.
Walking catfish.Nature's feisty little catfish,found in southern Florida,has an extra lung for breathing on dry land. When its swimming hole dries up,the walking catfish waddles on stiff forward fins in search of another lake or stream.If an enemy attacks,the fish flares(展开)its top and front fins and leaps at the attacker to scare it off.
Armored catfish.This catfish has heavy,bony plates protecting its body. The shell makes the fish difficult to bone. To cook it,throw the fish whole into a fire. When it is done,break it open for eating.Some armored catfish are found in Florida,but the 100-pounders live in South America.
Rounding out the family of strange catfish are talking catfish,which make growing sound when you pull them from the water;climbing catfish,which move quickly up shore brush in search of food;electric catfish,which can deliver a mild shock;and blind catfish,which settle in the inky blackness of underwater caves.Blind catfish find food through taste buds in their eight whiskers(须).
Most catfish have four whiskers on the upper jaw and four on the lower jaw. Sensory holes on these whiskers help the fish smell and taste food even in the muddiest of water.The United States does not have catfish anywhere near the size of those in South America.But in some large U.S,rivers,blue and flathead catties do top 100 pounds.
Most of the catfish you are likely to catch will be much smaller,about frying pan size.When you catch one,remember that the top fins and the forward fins have poison glands(腺)at their bases. They can give you painful wounds (…)
63.The purpose of the passage is to___________.
A.encourage readers to go fishing for catfish
B.inform readers of the world's largest catfish
C.describe the unusual characteristics of catfish
D.explain different ways to catch a variety of catfish
64.The author talks about the way of cooking an armored catfish to show that
A.it has heavy and bony plates        B.it's hard to cook and eat
C.it has too many bones      D.it's poisonous inside
65.Which is NOT mentioned about catfish in the passage?
A.Its eating habits.                                    B.Its living conditions. 
C.Its whiskers.                                 D.Its size
66.What may be continued in the last paragraph?
A.The author's love for catfish.     B.Where else to catch a catfish.
C.The origin of the name “catfish”    D.The safest way to handle catfish


63---66   CAA D    

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(共5小题;每小题2.5分,满分12.5分)

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

My mother is a diligent and kind woman. She is very busy from morning till night. As a teacher, she works hard.  1  Both my brother and I love her dearly as she loves us.

My mother has been teaching math at a middle school in my hometown. She goes to work early in the morning and does not return home until late in the afternoon.  2  She treats them with patience and teaches them well. For her excellent quality and very good teaching results, she has been elected as a model teacher several times.

 3  Every day, when she comes back home from work, she sets about doing housework, sweeping the living room and bedrooms or cleaning the furniture, and putting everything in good order. She seems to be busy all the time. As she has been very busy working every day, she looks older than her age. But she looks as cheerful and happy as ever. Mother never buys expensive dresses for herself, but she often buys some inexpensive but high quality clothes for us. 4  She just eats a plain meal outside when she is too busy to cook herself. She lives a busy yet simple life, without any complaints.

Often she says to us, “Work while you work, and play while you play. That is the way to be happy and gay. If you do not work, you will become lazy and be of no use to society”. What a piece of good advice this is!   5  This advice of hers will always serve as a guide to my behavior. My mother is great indeed, and I always feel proud of her.

A. She enjoys listening to classic music.

B. She loves her students and cares for them.

C. Can you tell us something about your mother?

D. I never forget it and always bear it in my mind.

E. My mother is hard-working and never wastes money.

F. She never goes to expensive restaurants to enjoy meals.

G. As a mother, she takes good care of us and gives us every comfort.

 

“Human influenza viruses can survive and be infectious for several days when they are deposited on banknotes,” according to the latest study by Yves Thomas and his colleages in Switzerland. Scientists put different types of flu virus onto Swiss franc notes and found that they could survive from a few hours to more than a week. The results depended on the type of flu virus.

According to the study, Swiss-banknotes are mostly cotton covered by a nonporous resin(无孔树脂). Banknotes from other countries may be composed of different materials, and this could affect viral transmission. “Whether similar results would be obtained with banknotes from other countries and with different characteristics needs to be studied.” the authors wrote. In an interview with Reuters, Thomas said. “Our studies have convinced us that it is possible to catch the flu from banknotes, but the chances are very, very small and there is no cause for concern among the gneral population,” To be sure, many kinds of frequently touched surfaces could temporarily hide the flu virus. Broadly speaking, scientists consider the risk of transmission in this way to be low. Particularly if hand-washing and other hygiene measures are practiced.

Three things must happen for a flu virus to be transmitted from one person to another via money. First, a person who is infected with the flu virus must sneeze or cough onto the banknote. Next, an uninfected person would need to touch the money while the virus si still present. Finally, that person would need to put his hand in his mouth or pick his nose, says Thomas. The best defense against infection: follow public health guidelines and wash your hands frequently.

49. What does the underlined word “this” refers to in the second paragraph?

A. The time when people stay in a bank.

B. The fact that banknotes may consist of deferent materials.

C. The bank where people draw their money.

D. The country where the banknotes are in circlation.

50. From the last paragraph, we can know that an infected person should ________.

A. pay attention to his personal hygiene    B. wash his hands after leaving a bank

C. be monitored at a bank                D. not cough at a bank

51. What can we learn from the passage?

A. Any person who touches banknotes will become infected.

B. Different flu viruses stay on the surface of banknotes for different lengths of time.

C. The bank should not allow any infected person to enter.

D. Only banknotes in Switzerland can transmit the flu virus.

52. What is the best title for the passage?

A. Is it Dangerous to Stay in a Bank?

B. How to Avoid Being Infected with the Flu Virus?

C. Can You Catch the Flu from Handling Money?

D. Why Do People Refuse to Use Banknotes in Switzerland?

 

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