阅读理解。 The world itself is becoming much

题型:阅读理解

问题:

阅读理解。

     The world itself is becoming much smaller by using modern traffic and modern communication means.

Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the

biggest problems is pollution. To pollute means to make things dirty. Pollution comes in many ways. We

see it, smell it, drink it and even hear it.

     Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem

was not so serious because there were not so many people. When the land was used up or the river was

dirty in one place, man moved to another place. But this is no longer true.

     Man is now slowly polluting the whole world.

     Air pollution is still the most serious. It's bad for all living things in the world, but it is not the only one

kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us

angry more easily.

     Many countries are making rules to fight pollution. They stop people from burning coal in houses and

factories in the city, and from putting dirty smoke into the air. Pollution by SO2 is now the most dangerous

kind of air pollution. It is caused by heavy traffic. We are sure that if there are fewer people driving, there

will be less air pollution.

     The earth is our home. We must take care of it. That means keeping the land, water and air clean. And

we must take care of the rise in pollution at the same time.

1. _____, our world is becoming much smaller.

A. Because of the rise in pollution

B. Thanks to science development

C. Because the earth is being polluted day and night

D. Because the earth is blown away by the wind every year

2. Hundreds of years ago, life was _____ it is today.

A. much easier than

B. as easy as

C. much harder than

D. as hard as

3. Pollution comes in many ways. We can even hear it. Here "it" means _____.

A. rubbish (垃圾)

B. noise pollution

C. air pollution

D. water pollution

4. Air pollution is the most serious kind of pollution because _____.

A. it makes much noise

B. it makes us angry more easily

C. it makes our rivers and lakes dirty

D. it's bad for all living things in the world

5. Which of the following is NOT true?

A. Many countries are making rules to fight pollution.

B. The pollution of the earth grows as fast as the world population does.

C. The problem of pollution is not so serious because there are not so many people living on the earth.

D. If people could go to work by bus or bike instead of car or motorbike, it would be helpful in fighting

    against the problem of SO2.

考点:健康环保类阅读
题型:阅读理解

(15分)中外历史人物评说

材料一 李大钊早期社会主义思想存在空想的色彩,他曾经把人的理性和博爱、自由、平等看作创造新生活的基础,认为协和与友谊是人类社会生活的普遍法则,是社会主义者共同认定的基础;他号召青年们投入村落中,对农民进行精神改造,建设新村落,并以村落为基础,建立小组织,以世界为家庭扩充大联合,新村落的大联合,就是我们的少年中国。

——摘编自韩一德、李帆《从空想到科学的转变——略论李大钊早期社会主义思想》

材料二 从1920年开始,李大钊的思想出现了重大飞跃,发生了新的变化。他从创办长辛店劳动补习学校开始的北方铁路工人运动的开展中,认识到改造社会必须采取激进的方法,必须到劳动者集中的地方去。李大钊逐渐认识到要从中国的特殊条件找到实现社会主义的方法,对于中国革命要分两步走,第一步是实行民主主义,打倒官僚、军阀、封建统治阶级,第二步才是实行无产阶级专政。

——摘编自《李大钊史事综录》

(1)根据材料一,概括李大钊早期空想社会主义思想的特点。(6分)

(2)根据以上材料并结合所学知识,指出李大钊思想发生的变化及变化原因。(9分)

题型:阅读理解
已知函数f(x)=
cx-1
x+1
(c为常数).
(1)若1为函数f(x)的零点,求c的值;
(2)在(1)的条件下且a+b=0,求f(4a)+f(4b)的值;
(3)若函数f(x)在[0,2]上的最大值为3,求c的值.
题型:阅读理解

一质量为m=2kg的滑块能在倾角为θ=300的足够长的斜面上以a=2.5m/s2匀加速下滑.如图所示,若用一水平推力F作用于滑块,使之由静止开始在t=2s内能沿斜面运动位移s=4m.求:(取g=10m/s2

(1)滑块和斜面之间的动摩擦因数μ;

(2)推力F的大小.

题型:阅读理解

下列关于齿龈癌常规放疗的说法错误的是()。

A.早期齿龈癌的治疗首选根治性放疗

B.常规放疗方式采用同侧正交楔形野照射

C.下齿龈癌放疗射野应包括同侧下颌骨

D.上齿龈癌放疗射野在包括原发灶的同时还应包括部分上颌窦

E.常规照射野前界应达下颌骨前缘,并尽可能避开上下唇

题型:阅读理解

关于被私有访问控制符private修饰的成员变量,下列说法正确的是( )。

A. int a;b

B. float a,b1=1.23f;

C. char ch='d';

D. public int i=100,j;

更多题库