登录
We have all read the story of a thirsty crow(乌鸦) dropping stones into a bottle to get water. The crow is clever, isn't it? In fact, crows are one of the smartest animals on the earth. And the intelligence(智力) of some crows is compared to that of a 7-year-old child. Studies have even shown that some crows do better in intelligence tests than animals that are most closely related to humans.
Now a Swedish company, Corvid Cleaning, is training wild crows to pick up cigarette butts(烟头) from the streets. The crows are trained to put the cigarette butts into a vending machine(自动售货机) to get food. The machine gives out the food after scanning(扫描) to make sure the object is a cigarette butt, not other rubbish.
It is said that cigarette butts make up nearly 62% of Sweden's rubbish thrown out on the streets and over one billion cigarette butts are dropped on the streets every year in the country. So if the company can get crows to pick up just cigarette butts, then they'll be able to overcome nearly 62% of the rubbish problem in Sweden.
Now, people don't know if picking up cigarette butts will be bad for the health of these birds. So the company is trying to find out the answers. Also, the company is not using captive(被关起来的) crows to do the cleaning job. The crows being used are wild crows, living in their natural environment. They fly into the city to do the daily cleaning job of picking up cigarette butts to get food.
根据材料内容选择最佳答案。
( )41. How does the writer begin the passage?
A. By telling a joke.
B. By making a survey.
C. By talking about a story.
D. By giving facts with numbers.
()42. gives food to the crows.
A. The machine
B. The smart crow
C. The street cleaner
D. The owner of the crows
()43. The underlined word “overcome” means “”.
A. hit
B. solve
C. cause
D. include
()44. What can we learn from the last paragraph?
A. Captive crows are smarter than the wild ones.
B. The crows don't enjoy picking up cigarette butts.
C. Many other animals will also do the cleaning job.
D. The company will make more studies on the crows.
()45. What's the best title for this passage?
A. Say No to Rubbish!
B. What's the Smartest Animal?
C. Crows Clean the Streets for Food
D. How Do Crows Live in the Wild
Now a Swedish company, Corvid Cleaning, is training wild crows to pick up cigarette butts(烟头) from the streets. The crows are trained to put the cigarette butts into a vending machine(自动售货机) to get food. The machine gives out the food after scanning(扫描) to make sure the object is a cigarette butt, not other rubbish.
It is said that cigarette butts make up nearly 62% of Sweden's rubbish thrown out on the streets and over one billion cigarette butts are dropped on the streets every year in the country. So if the company can get crows to pick up just cigarette butts, then they'll be able to overcome nearly 62% of the rubbish problem in Sweden.
Now, people don't know if picking up cigarette butts will be bad for the health of these birds. So the company is trying to find out the answers. Also, the company is not using captive(被关起来的) crows to do the cleaning job. The crows being used are wild crows, living in their natural environment. They fly into the city to do the daily cleaning job of picking up cigarette butts to get food.
根据材料内容选择最佳答案。
( )41. How does the writer begin the passage?
A. By telling a joke.
B. By making a survey.
C. By talking about a story.
D. By giving facts with numbers.
()42. gives food to the crows.
A. The machine
B. The smart crow
C. The street cleaner
D. The owner of the crows
()43. The underlined word “overcome” means “”.
A. hit
B. solve
C. cause
D. include
()44. What can we learn from the last paragraph?
A. Captive crows are smarter than the wild ones.
B. The crows don't enjoy picking up cigarette butts.
C. Many other animals will also do the cleaning job.
D. The company will make more studies on the crows.
()45. What's the best title for this passage?
A. Say No to Rubbish!
B. What's the Smartest Animal?
C. Crows Clean the Streets for Food
D. How Do Crows Live in the Wild
答案
41. C
42. A
43. B
44. D
45. C
42. A
43. B
44. D
45. C
