问题 解答题

昆虫的翅与鸟的翼的结构不同,但就飞行来看有哪些共同点呢?

答案

答:昆虫的翅与鸟的翼在适于飞行方面的主要共同点是:

都有用于飞行的扇面形结构,这些结构的运动都是由肌肉的收缩和舒张引起的,在空气中都可以产生向上的升力和前进的动力;

相对于自身身体的大小来说,都具有轻、薄、表面积大的特点,有利于通过扇动空气产生飞行的动力.

故答案为:①形状:呈扇形;②动力:肌肉的收缩和舒张;③重量:相对于自身具有轻、薄、表面积大.

阅读理解

University of Oxford is the oldest university in the English-speaking world and it’s one of the top university in the world. There is no clear date when the university started, but teaching began at Oxford in some forms in 1096 and developed quickly from 1167.

There are 39 independent(独立的) colleges at Oxford, attracting students and learned men from across the world. There are over 100 libraries for the students and learned men to use. At University of Oxford, they also provide a number of money for the best students. Of course, if you want to study here, first you have to reach a certain level of English language.

College life at Oxford is very exciting but busy. The groups of college provide a friendly and welcoming home for students while the college are strict with students about their studies. Many Chinese students are studying here. The number of Chinese students at the university has grown quickly over the past 10 years.

根据短文内容,选择最佳答案。(共5小题,每小题2分,满分10分)

小题1:How many libraries are there at Oxford?

A.Only 100

B.Just 100

C.More than 100

D.less than 100小题2:What do you have to do first if you want to ask fir studying at Oxford? You have to__________.

A.be independent

B.pass a certain level test of English language

C.study English hard

D.be the best students小题3: How’s the college life at Oxford? It’s full of ________ and has ________.

A.excitement; much school work to do

B.excitement; no school work to do

C.attraction; no school work to do

D.attraction; a little school work to do小题4: Which of the following is true according to the passage?

A.The college aren’t strict in studies.

B.Only because of 39 dependent colleges, thousands of students come here to study.

C.The university of Oxford is the most important and successful one in the world.

D.The university of Oxford provides a number of money for most students.小题5:What’s the best title for the passage?

A.The College Life

B.The Famous Learners at Oxford

C.The Chinese Students at Oxford

D.The University of Oxford

单项选择题