In many societies, there is often greate

题型:阅读理解

问题:

In many societies, there is often greater acceptance of light skin than dark skin. Light skin may be seen as a mark of beauty, intelligence and success. These beliefs can lead to social pressures even within the same racial or ethnic group, if some members are darker skinned than others.

The result is that skin lightening has become a common activity across Africa, Asia and other areas of the world. More and more people with dark skin are using skin-lightening products, even if it means they may face health risks.

They believe that having whiter skin will improve their lives. Many people think they will have a better chance of getting a job or marrying into a better family. Or they want to look like what their society generally considers beautiful.

Some beauty care products and soaps contain chemicals that make skin lighter. This is also called bleaching. But some of the chemicals are extremely dangerous. One of the most dangerous is hydroquinone(对苯二酚).

Hydroquinone has been banned in several countries. This chemical has been connected to kidney damage and some kinds of cancer. It also causes low birth weight in babies when mothers –to-be use it during pregnancy.

At first, bleaching products make the skin color lighter. But after long-term use they can cause problems. They could even make some skin darker.

The chemicals in the products block and break down the natural process that gives color to skin. The skin loses its natural barrier(障碍)to protect against sunlight. Then the skin can become thick and discolored. Usually the person will use more of the product in an effort to correct the problem, but this only makes it worse.

Fatimata Ly treats skin conditions in the Senegalese capital, Dakar. Doctor Ly says skin bleaching has become a problem throughout Senegal. She says the chemicals are now more dangerous because they are stronger. Some cases have resulted in blackened fingernails, infections and permanent(永久的)skin damage.

And these are not the only risks. Experts say some people who change their skin color suffer emotional damage. They feel regret and sadness. They feel that instead of risking their health, they should have learned to love and accept their skin color as it was.

小题1:What is the text mainly about?

A.The advantages of light skin

B.Introducing skin lightening products

C.The harmfulness of Hydroquinone

D.The health risks of bleaching小题2:What does the underlined word “bleaching” refer to?

A.The process of removing the color

B.The process of making the skin whiter

C.The chemicals that make things white

D.The chemicals that protect skin against sunlight小题3:Why do people want to make their skin lighter?

A.Because they all want to look more beautiful.

B.Because they all want to marry into better families.

C.Because they want to find better jobs.

D.Because they want to improve their lives.小题4:Skin bleaching may cause the problem of ______.

A.emotional problems

B.kidney cancer

C.lighter skin

D.low birth rate小题5:The author holds a/ an ______ attitude towards skin lightening.

A.positive

B.negative

C.supportive

D.optimistic

考点:健康环保类阅读
题型:阅读理解

5000多年前某地是大汶口文化,但在距今约4400年的时候,为龙山文化所替代。是什么原因导致这两种文化的更迭?考古人员发现,在距今约4400年前的时候,发生了一次严重的“冷事件”,环境由原来的温暖湿润转变为寒冷干燥,植被大量减少,藻类、水生植物基本绝迹了,大汶口文化向南迁移,而龙山文化由北迁到此地。他们据此认为,距今4400年左右的极端气候变化,可能是导致这次文化变迁的主要原因。以下哪项如果为真,最能支持上述论证()

A.大汶口文化有不断向南方迁移的传统

B.龙山文化刚迁来时,人口较多,但之后逐渐减少,在距今约4000年的时候消失了

C.大汶口文化的族群以藻类和水生植物作为食物的主要来源

D.不同生存方式的族群对气候和环境都有相对稳定的需求

题型:阅读理解

With an eighty-hour week and little enjoyment, life must have been very________ for the students.

A.hostile

B.anxious

C.tedious

D.obscure

题型:阅读理解

在采用点-点通信线路的网络中,由于连接多台计算机之间的线路结构复杂,因此确定分组从源结点通过通信子网到达目的结点的适当传输路径需要使用______。

A.差错控制算法

B.路由选择算法

C.拥塞控制算法

D.协议变换算法

题型:阅读理解

按证券交易对象的品种划分,证券交易可以分为买入交易和卖出交易。( )

题型:阅读理解

已知三个等值电阻接成Y形,若将其转化成等效的形接法,则对应的3个电阻将()。

A.变小

B.变大

C.不变

D.两个变大,一个变小

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