题目内容
A new study says that birds living in big cities sing shorter, faster songs that are higher-pitched (高音调的) than those sung by their brothers in the forests. The researchers think that the birds adjust their songs to allow themselves to be heard over the noises of the city, especially the low traffic noise.
To study how urban birds song, Hans Slabbekoorn and Ardie den Bore, biologists at the University of Leiden in Netherlands, travelled around Europe and recorded bird songs in ten major cities and in nearby forests. The species they focused on, the great tit (大山雀), is widespread across Eurasia and one of the few types of birds that thrives in big cities.
Singing is crucial (重要的) for males, which use their songs to attract mates and mark out their territory. The changing songs could play a role in eventually causing the city birds and the forest dwellers to evolve into separate species.
The findings could also help explain why usually only a few bird species thrive in cities. By contrast, many more bird species tend to be found in forests and other undeveloped habitats.
Studies like this could eventually help researchers predict how urbanization (都市化) will affect birds, using this knowledge could help urban planners design more pleasant city environments, study co-author Slabbe-koorn said. “You can make a city much more livable if you pay attention to where the noise goes and where the people go,” he said. “It would be easy to fit the birds into those models.” Then cities wouldn’t be strictly for the people, but also for the birds.
【小题1】 Which is the best title of the passage?
A.Birds Change Songs to Suit Country Life |
B.Birds Change Sex to Suit Urban Life |
C.Birds Change Living Habits to Suit Urban Life |
D.Birds Change Songs to Suit Urban Life |
A.evolve into another species |
B.attract mates and mark out their living area |
C.attract city people’s attention and make them supply food |
D.allow themselves to be heard over the noises of the city |
A.dies | B.survives | C.suffers | D.travels |
A. Predicting how course of the city’s expanding will affect birds.
B. Helping the city planners design more pleasant city environments.
C. Making cities more livable for both the birds and people.
D. Driving the urban birds back to the forest.
【小题1】D
【小题1】B
【小题1】B
【小题1】D
解析
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At EF – English First, we aim to provide the best English language training program and teachers are at the heart of our leaning system. EF has over 100 schools in 60 cities throughout China, and it is well – known in China. EF is looking for native English speakers with teaching experience to help Chinese people learn English well. Our English teaching principles focus on practice, confidence building and practical application of the language. While teaching English with EF, you will continue to develop as a teaching professional and experience life in this great nation.
As soon as you walk into an EF school, you will understand why creating a welcoming learning environment is important to how we teach English. Our schools have well – equipped, modern classrooms, computer labs, and teaching preparation arcas. Our teachers receive a complete modern teaching program, popular classroom – based training to prepare them to teach to our high standards.
A professional package for an international teaching professional.
Our package includes:
◆High salary ◆Flight payment
◆Health insurance ◆Living place & food help
◆Generous paid vacation + national holidays ◆Working visa (签证)
◆Help upon arrival ◆Teacher training & development
◆Chances of being raised to higher ranks
Set up in 1965 with they duty to “break down difficulties in language, culture and geography”, EF has helped over 15 million stud tens, learn a new language and travel in foreign countries. EF was the Official Language Training Services Supplier of the Beijing 2008 Olympic Games and one of the largest employers of English teachers in China. EF works in one of today’s fastest growing industries – education – and promises teachers a chance to make a real difference.
【小题1】What does EF stand for?
A.English Farm. | B.English First. | C.English Fit. | D.English Fact. |
A.In 60 cities in China. | B.In the middle of China. |
C.In 100 cities in China. | D.In the countryside of China. |
A.A native Frenchman with working visa. |
B.A native Englishman who lived in China. |
C.A native American who wants to help others. |
D.A native English speaker with teaching experience. |
A.medical insurance | B.high salary |
C.unemployment insurance | D.help when arriving |
A.It is about EF – English First. |
B.It is about traveling in foreign countries. |
C.It is about the Beijing 2008 Olympic Games. |
D.It is about difficulties in language, culture and geography. |