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Particulate Matter There are things floa...

Particulate Matter

There are things floating around in the air. Most of them, you can not even see. They are a kind of air pollution called particles or particulate matter. In fact, particulate matter may be the air pollutant that most commonly affects people’s health.

Have a Look.

Particles can come in almost any shape or size, and can be solid particles or liquid droplets.1. These two groups differ in many ways. One of the differences is size, we call the bigger particles PM 10 and we call the smaller particles PM 2.5.

BIG.

The big particles are between 2.5 and 10 micrometers (from about 25 to 100 times thinner than a human hair). These particles are called PM 10 (we say ―PM ten, which stands for Particulate Matter up to 10 micrometers in size).2.

SMALL.

The small particles are smaller than 2.5 micrometers (100 times thinner than a human hair).3.We say ―PM two point five, as in Particulate Matter up to 2.5 micrometers in size.The smaller particles are lighter and they stay in the air longer and travel farther. PM 10 particles can stay in the air for minutes or hours while PM 2.5 particles can stay in the air for days or weeks.And travel? 4. PM 2.5 particles go even farther; many hundreds of miles.

Particulate Matter and Your Health.

When you breathe, you take in the air along with any particles in the air, like heavy metal sand cancer causing organic compounds. Both PM 10 and PM 2.5 particles can cause health problems, specifically respiratory (呼吸的) health.5. Exposure to particulate matter leads to increased use of medication and more visits to the doctor or emergency room.

A.These particles are called PM 2.5.

B.We divide particles into two major groups.

C.These particles cause less severe health effects.

D.PM 10 particles can travel as much as 30 miles.

E.Air pollution is a growing problem in the whole world.

F.PM 2.5 can have worse health effects than the bigger PM 10.

G.Air pollutants have great effects on our environment and our health.

 

1.B 2.C 3.A 4.D 5.F 【解析】 本文为说明文。大气中有很多悬浮颗粒物,从大小上可以分为PM 10和PM 2.5,它们不但造成大气污染,而且还影响人们的身体健康。文章主要对颗粒物的分类及特点进行了介绍。 1.考查对上下文的理解及推理判断能力。空格后面“These two groups differ in many ways. One of the differences is size, we call the bigger particles PM 10 and we call the smaller particles PM 2.5.”这两个群体在许多方面都不同。其中一个区别是大小,我们称较大的颗粒为pm10,称较小的颗粒为pm2.5。可知,我们可以把这些颗粒分为the bigger和the smaller两类。分析选项可知B项 We divide particles into two major groups(我们把粒子分成两大类)意义一致,而且有词(two groups)复现,故选B。 2.考查对上下文的理解及推理判断能力。空格前提到了PM 10的相关知识,后面理所当然应提到它对人类健康的影响,且在第一段就已经提到了颗粒物会对人类的健康造成影响,所以答案C项These particles cause less severe health effects(这些微粒对健康的影响较小)符合题意,故选C。 3.考查对上下文的理解及推理判断能力。根据Have a look下面一段最后一句“we call the smaller particles PM 2.5(称较小的颗粒为pm2.5)”,结合空格前的“The small particles are smaller than 2.5 micrometers” 这些小颗粒小于2.5微米。可知这些小于2.5微米的叫做PM2.5。可推断出A项These particles are called PM 2.5.(这些粒子叫做PM 2.5)是 符合题意的,故选A。 4.考查对上下文的理解及推理判断能力。空格前提到And travel? 空格后面PM 2.5 particles go even farther; many hundreds of miles(PM 2.5粒子甚至走得更远;数百英里),even farther含比较的意思,综合看可知,空格处应该是提到PM 10可以漂浮到多远。分析选项可知D. PM 10 particles can travel as much as 30 miles( PM 10粒子的行程可达30英里)符合题意,故选D。 5.考查对上下文的理解及推理判断能力。前文提到“The smaller particles are lighter and they stay in the air longer and travel farther”更小的颗粒更轻,它们在空气中停留的时间更长,移动的距离更远。而本段小标题为Particulate Matter and Your Health可知本段谈颗粒对人类健康造成影响,以及空格后“Exposure to particulate matter leads to increased use of medication and more visits to the doctor or emergency room.”暴露在颗粒物中会导致用药增加,去看医生或急诊室的次数增加。既然小颗粒在空中呆的时间更长,飘的更远,自然危害更大。分析选项可知,F选项PM 2.5 can have worse health effects than the bigger PM 10. (PM 2.5对健康的影响比较大的PM 10)更严重,符合题意,故选F。
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    The beginning of baseball in China traces back further than most would think, in 1863. From that time, Chinese universities soon began to stage baseball activities. The first game, as documents recorded, was held in Shanghai in 1905. National interest in this traditionally American sport picked up quickly, and in 1915, China placed second in the Greater Asia baseball tournament held in Shanghai. Several decades later, baseball was as popular as it would ever be. In 1959,teams from 30 regions came together in a national competition.

Founded in 2002, the China Baseball League (CBL) is China’s professional league for the sport, with seven teams around the country. The opportunity to capture a huge new market with China’s growing interest saw the US Major League Baseball (MLB) open its first China office in Beijing in 2007, which has since then developed the Chinese market and educated young athletes.An example is the youth baseball program Play Ball in major Chinese cities. In the same year, the CBL partnered with Japan’s Nippon Professional Baseball (NPB), agreeing to allow Japanese clubs to send coaches and players to China and Chinese players to train at Japanese facilities. This program helps Chinese schools integrate baseball into their physical education curriculum, build professional development centers. More and more Chinese youths are getting involved with the sport, taking baseball class on the weekends or after school. Many programs for children have been established and often hold classes at many baseball fields.

Through these different partnerships and co-operations, China has created opportunities for the citizens to experience another culture. China might just be the future of baseball. Through heavy investments since 2017, the CBL hopes to one day cultivate a Yao Ming of baseball, which would bring huge exposure to the sport.

1.What’s the main idea of paragraph 1?

A.The beginning of baseball in China.

B.The development of baseball in China.

C.The national competition of baseball in China.

D.The interest in this traditionally American sport.

2.How does the writer develop this text?

A.By the time order.

B.By the cities adding.

C.By China’s interest growing.

D.By partner countries increasing.

3.Which of the following can replace the underlined word "capture" in paragraph 2?

A.lose. B.found.

C.seize. D.control.

4.What can we predict from paragraph3?

A.Baseball remains a mystery to most of Chinese people.

B.The interest in developing baseball is limited in China.

C.Chinese schools will have baseball education curriculum.

D.More baseball talents and fans will spring up in China.

 

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    Classified advertising is that advertising which is grouped in certain sections of the paper and is thus distinguished from display advertising. Such groupings as ―Help Wanted, RealEstate(不动产), Lost and Found are made, the rate charged being less than for display advertising. Classified advertisements are a convenience to the reader and a saving to the advertiser.

The reader who is interested in a particular kind of advertisement finds all advertisements of that type grouped for him. The advertisers may, therefore, use a very small advertisement if it was placed among larger advertisements in the paper. It is evident that the reader approaches the classified advertisement in a different frame of mind from that in which he approaches the other advertisements in the paper. He turns to a page of classified advertisements to search for the particular advertisement that will meet his needs.

As his attention is voluntary, the advertiser does not need to rely too much extent ondisplay type to get the reader’s attention. Formerly all classified advertisements were of the same size and did not have display type. With the increase in the number of such advertisements, however, each advertiser within a certain group is competing with others in the same group for the reader’s attention. In many cases, the result has been an increase in the size of the space used and the addition of headlines and pictures. In that way, the classified advertisement has in reality advertisement. This is particularly true of real estate advertising?

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C.Putting £70 ($91) into a savings account in bank.

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A.Because he was too traditional to save money.

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    European architecture in Tianjin is a window showing China’s historical changes. In a one-day tour, you can see some old western-style private residences, former Imperial Gardens and enjoy Tianjin snacks, like a time traveler.

The Garden of Jingyuan

The Garden of Jingyuan was constructed in 1921. It’s now an excellent example of an old private residence in Tianjin, which is now well-preserved. The last emperor of the Qing Dynasty, Puyi, once lived here after his abdication(退位), from July 1929 to November 1931. He changed the name to Jingyuan, which references his desire to strengthen and ennoble his spirit by living in a peaceful environment.

Address: 70 Anshan Road, Heping District

Transport: Anshan Road (Subway Line 1)

Tickets & Opening Hours: Closed Monday; Tuesday to Sunday, 8:30-5:00p.m. RMB ¥20 per person

Zhangyuan Garden

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The mansion is visible from the street, but the buildings and gardens are not open to the public at present.

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Transport: Jianguo Road (Subway Line 2)

Tickets & Opening Hours: Access all day for nothing

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D.He would like to lead a quiet and calm life after his abdication.

2.Which of the following tourist attractions is not open to the visitors?

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3.What’s the best thing you can do in Italianate Street?

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D.Walking around the Marco Polo Square.

 

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假如你是高三学生李津,请你代表你的同学们,结合下面要点提供的信息给你们的外教 Mr. Black写一封电子邮件,向他提出一些建议。

要点:

1)问候并说明大家都很喜欢上他的课;

2)今天受同学的委托向老师提几点建议;

3)想了解美国同龄人的学习和生活;

4)想了解美国一些著名大学的信息。

注意:(1)词数不少于100;

2)开头和结尾已经写出,不计人总词数;

3)可以适当增加细节,以使行文连贯。

参考词汇:同龄人peer

Dear Mr Black,

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

 

Your student,

Li Jin

 

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