问题 填空题

歌曲“让我们荡起双浆,小船儿推开波浪,海面倒映着美丽的白塔,四周环绕着绿树红墙,小船轻轻飘荡在水中,迎面吹来了凉爽的风……”

(1)优美的歌曲是由于歌唱家声带           产生的,然后通过           传到听众的耳朵的。

(2)看到海面倒映的白塔是由于光的          而形成的。

(3)以白塔为参照物,人是         的。

答案

(1)振动;空气  (2)反射  (3)运动

题目分析:声音的产生:物体的振动;声音的传播需要介质;平面镜成的是虚像,利用的是光的反射原理.物体的运动和静止是相对的,物体是运动还是静止,要取决于参照物的选择.

点评:本题考查了初中物理的多个知识点,知识的综合性很强,包括了声音、光以及运动等。这就要求学生对知识的掌握全面,综合应用能力要加强。

单项选择题
阅读理解

Malnutrition (营养失调)remains a serious problem for India. But a new study shows that India’s leading causes of death now also include diseases related to obesity (肥胖)such as heart disease.

India’s National Family Health Survey shows that more than twenty percent of Indians living in cities are overweight or obese. And in the northwestern state of Punjab, that is true for almost forty percent of women.

Aradhna Tripathi is a business professional in New Delhi. She said, “ Eating is the most important thing in any Indian household and how you show your love and gratitude(感激) for a person is through the kind of food you serve him. And the kind of lifestyle we are leading is one of the reasons why we have the number of obese people increasing every day.

But Aradhna Tripathi says she has decided to lose weight. Her mother and grandmother are also diabetic(患糖尿病的). In fact, the International Diabetes Federation says India is now the diabetes capital of the world. Researchers say Indians store more body fat per kilogram than Europeans. That means obese Indians are even more at the risk of diabetes than other people.

Doctor Anoop Misra at Fortis Hospital in New Delhi says the risk of diabetes is crossing social and economic lines. Five years ago, he says, obesity and diabetes were limited to India’s richest people, but now things have changed.

But Doctor Misra is hopeful that the spread (蔓延,传播)of obesity can be slowed. And he says it must start in schools by giving all Indian children the same instruction on physical activity and diet.

The World Health Organization says China is also moving up in obesity rates. The estimate (估计) has reached about five percent countryside and as high as twenty percent in some cities.

小题1:What is this passage mainly about?

A.Obesity has become a big killer in India.

B.Heart disease is troubling people in India.

C.People in India live a very unhealthy life.

D.Malnutrition remains a serious problem in India.小题2:According to Aradhna Tripathi , one of the causes of the obesity problems is_________.

A..the development of economy

B.the change of Indians’ lifestyle

C.Indians’ attitude (态度)towards eating

D.Indians’ attitude towards obesity.小题3: What can we infer from the underlined sentence in Paragraph 5?

A.Most wealthy people in India are overweight.

B.Five years ago, few people in India were overweight

C.Few poor people are diabetic for economic reasons.

D.Now even the poor in India suffer from obesity.