问题 选择题

通过对“声现象”的学习,你认为下列说法中正确的是[ ]

A.只要物体振动就一定能听到声音  

B.我们无法听到蝴蝶飞过的声音,是因为它发出声音的响度太小  

C.在校园内植树可减弱校外传来的噪声  

D.超声波的频率很低,所以人听不到

答案

答案:C

阅读理解

Can you write down a Chinese word being read to you? Sometimes it can be difficult when you find the word is not included in most dictionaries.

Lu Jialei, 14, from Hangzhou Foreign Language School, won the CCTV Chinese Character (汉字) Spelling Contest on Oct 18th, 2013. About 160 people competed. The host read a word to the contestant, explained its meaning and gave sample sentences. The contestant was required to write down the word.

Winning the contest was a “surprise” to Lu. “I was not the smartest one,” she said. “But I paid attention to details.” To prepare for the contest, she and her teammates studied the Modern Chinese Dictionary for 10 days. There are more than 56,000 entries (词条) including characters, words and phrases in it. She also had a secret weapon. She studied how Chinese characters were formed.

“When others paid attention to the plot of a story, she looked at how authors use words and sentences to express themselves,” said Su Yunsheng, Lu’s Chinese teacher. Su is happy to see students like Lu find the beauty of Chinese language.

“Besides using something Chinese and having Chinese traditional festivals, learning to write Chinese characters is also an important part of inheriting (传承) Chinese culture,” said Su.

小题1:Lu Jialei was born in ________.

A.1997

B.1999

C.2001

D.2002小题2: Lu Jialei studied the Modern Chinese Dictionary ________ for the contest.

A.for more than one week

B.as long as one week

C.for more than half a month

D.as long as half a month小题3:The contestant was required to write down the word ________.

A.after the contestant read the word to the host

B.before the host read the word to the contestant

C.after the host explained its meaning and gave sample sentences

D.before the contestant explained its meaning and gave sample sentences小题4:Lu Jialei’s secret weapon was that ________.

A.she paid attention to details

B.she was the smartest contestant

C.she found the beauty of Chinese language

D.she studied how Chinese characters were formed小题5:From the passage we can infer ________ isn’t an important part of inheriting Chinese culture.

A.trying to write Chinese characters

B.using chopsticks when having meals

C.giving and receiving presents at Christmas

D.spending the Spring Festival with families

单项选择题

Watch a baby between six and nine months old, and you will observe the basic concepts of geometry being learned. Once the baby has mastered the idea that space is three-dimensional, it reached out and begins grasping various kinds of objects. It is then, from perhaps nine to fifteen months, that the concepts of sets and numbers are formed. So far, so good. But now an ominous development takes place. The nerve fibers in the brain insulate themselves in such a way that the baby begins to hear sounds very precisely. Soon it picks up language, and it is then brought into direct communication with adults. From this point on, it is usually downhill all the way for mathematics, because the child now becomes exposed to all the nonsense words and beliefs of the community into which it has been so unfortunate as to have been born. Nature having done very well by the child to this point, having permitted it the luxury of thinking for itself for eighteen months, now abandons it to the arbitrary conventions and beliefs of society. But at least the child knows something of geometry and numbers, and it will always retain some memory of the early happy days, no matter what vicissitudes it may suffer later on. The main reservoir of mathematical talent in any society is thus possessed by children who are about two years old, children who have just learned to speak fluently.

At what age does a child probably begin to learn about sets and numbers().

A. Six months.

B. Eighteen months.

C. Fifteen months.

D. Nine months.