仁爱科普版九年级上册Topic 2 All these problems are very serious.精品课后作业题

这是一份仁爱科普版九年级上册Topic 2 All these problems are very serious.精品课后作业题，文件包含同步练习仁爱版初中英语九年级上册Unit2Topic2SectionA原卷版docx、同步练习仁爱版初中英语九年级上册Unit2Topic2SectionA解析版docx等2份试卷配套教学资源，其中试卷共30页， 欢迎下载使用。
【学习目标】
By the end f the lessn, students shuld be able t:
Wrds and phrases: sand, althugh, sandstrm, desert, human being, reduce,
cmpletely, change int, stp … frm, blw/ wash … away,
as a result
Sentences: A lt f water can be saved by frests.
Althugh we have built “The Green Great Wall”, we still need t d smething t prtect the envirnment.
Grammar: Indefinite prnun and adverb.
Difficult pints：
能够从所听材料中获得有效的细节信息来补全句子。
能够根据图片和信息提示词描述沙尘暴形成的过程。
【预习导学】
必备单词、短语和句子
1________________n.沙，沙子
2________________转换成，把……变成
3________________n.沙漠v.舍弃,遗弃
4________________cnj.虽然，尽管
5________________v.减少；减轻
6________________adv.彻底地；完整地
7.____________________（风）吹得猛
8._____________________砍伐
9.___________________结果是
10.__________________变成
11.___________________把……变成
12.blw/wash/take… away______________________
13.human beings = humans______________________
14.cme int being_____________________
15.stp/prevent …(frm) ding___________________
16.keep…frm ding______________________
17.While I was walking dwn the street just nw, I culdn’t see anything.
______________________________________________
18.Cutting dwn trees is harmful t human beings, animals and plants.
_________________________________________________
19.Althugh we have built “The Green Great Wall”, we still need t d smething t prtect the envirnment.
__________________________________________________
答案：
1sandn.沙，沙子
2change…int…转换成，把……变成
3desertn.沙漠v.舍弃,遗弃
4althughcnj.虽然，尽管
5reducev.减少；减轻
6cmpletelyadv.彻底地；完整地
7.blw strngly（风）吹得猛
8.cut sth. dwn砍伐
9.as a result结果是
10.change/turn int变成
11.change/turn…int…把……变成
12.blw/wash/take… away把……吹走/冲走/带走
13.human beings = humans人类
14.cme int being形成
15.stp/prevent …(frm) ding阻止……做某事
16.keep…frm ding阻止……做某事
17.While I was walking dwn the street just nw, I culdn’t see anything.
刚才当我在街上走的时候，什么也看不清。
18.Cutting dwn trees is harmful t human beings, animals and plants.
砍伐树木对人类，动植物有害。
19.Althugh we have built “The Green Great Wall”, we still need t d smething t prtect the envirnment.
尽管我们已经建立了“绿色长城”，但我们仍然需要做一些事来保护环境。
【探究提升】
Sectin A
1. The wind utside is blwing strngly.
blw strngly/hard 刮大风
rain/snw heavily/hard
2. While I was walking dwn the street just nw, I culdn’t see anything.
(1) while 引导时间状语从句只能是延续性动词。
when引导的从句动词可以使延续性动词，也可以是短暂性动词
while sb.be ding, sb. be ding.
while然而
(2) walk dwn the street 沿着街道走
(3) nt anything = nthing, 即nt any = n
3. A lt f rich land has changed int desert.
change int = turn int 把…变成
4. Trees can stp the wind frm blwing the earth away.
(1) stp sb./sth. (frm) ding sth.
prevent sb./sth. (frm) ding sth.
keep sb./sth. frm ding sth. (frm不能省略)
prtect sb./sth. frm ding sth. (frm不能省略)
(2) earth着重指与天空相对的“土地”，还泛指泥土
sil 指用于种植庄稼的“土壤”
grund指大地表面
land指与河、湖、海洋相对的陆地
(3) blw sth. away 把…吹/刮走 blw-blew-blwn
wash sth. away 把…冲走，把…洗掉
拓展：blw ut吹灭
put ut 扑灭
5. And a lt f water can be saved by frests.
be saved by 为被动语态结构
被动态结构：动作承受者+ be + V（过去分词）+by 动作实施者
save v. 贮存；挽救；节约
6. Althugh we have built “The Green Great Wall”, we still need t d smething t prtect the envirnment.
(1) althugh cnj. “虽然，尽管”，引导让步状语从句，相当于thugh, althugh比较正式。
eg: Althugh/Thugh he is very tired, he ges n with his wrk.
【注意】 在句中使用althugh或thugh时，不能同时使用but, 但althugh/thugh后可与yet或still连用。
加强语气时， 可用even thugh.
(2) need v. 实意动词, need t d sth. , 否定：dn’t need t d sth.
情态动词, need d sth., 否定：needn’t d sth.
need n.需要，需求
7. Peple have cut dwn such a large number f trees that the land change int desert.
a number f “许多，大量”
a number f + 可数名词复数 + 谓语动词复数
the number f “数目”
the number f + 可数名词复数 + 谓语动词单数
eg: There are a number f cars in the parking lt. The number f the cars is abut 200.
停车场停了大量的车。车的数量大约是200。
巩固：such+a(n)+形容词+单数名词+that从句。“如此……以致于……”
such+形容词+复数名词/不可数名词+that从句。
a lt f /lts f 和plenty f 都可修饰可数与不可数名词。“许多”
8. Sme animals are in danger f dying ut.
in danger f 处于…的危险中
die ut 灭绝
cme int being 产生，开始存在，诞生
巩固：die -died -died v. 死亡 death n. dying 现在分词
9. Humans have cme t realize the imprtance f prtecting animals.
cme t realize逐渐意识到
cme t d 逐渐…
【体系构建】
Sectin A
1. What bad weather! 多么糟糕的天气啊！
2. What causes these sandstrms? 是什么引起这些沙尘暴的呢？
3. As a result, a lt f rich land changed int desert.
结果，大量肥沃的土地变成了荒漠。
4. Hw can that affect the weather? 那是如何影响天气的呢？
5. stp…frm ding sth. 阻止……做某事
6. althugh：尽管，引导让步状语从句
7. d smething t… 做一些事情去……
【强化训练】
一、用所给单词适当形式填空
1．—I have t tell yu, I’m new t this kind f wrk. (cmplete)
—I believe yu can deal with it.
2．Mre new energy cars are prduced (reduce) the air pllutin.
3．It’s very (imprtance) t prtect ur envirnment.
4．They (cut) dwn t many trees since last year.
5．Frests can stp the water frm (wash) the earth away.
二、单项选择
6．Learning t manage time _______, and yu can make the mst ut f each day.
A．usuallyB．quicklyC．cmpletelyD．wisely
7．________ she was nly five years ld, she culd play chess very well.
A．AlthughB．ButC．SD．Because
8．My brther can help my mm d the husewrk ________ he is nly 4 years ld.
A．althughB．ifC．butD．until
9．—I think The Battle at Lake Changjin is a wnderful mvie.
—I agree with yu ________. We can learn a lt frm it.
A．recentlyB．cmpletelyC．suddenlyD．bravely
10．Mre and mre peple are trying their best t help lcal farmers t ________ prduct sales.
A．lseB．imprveC．reduce
11．The plice are watching the suspect ________ fr mre clues which will help slve the case.
A．clearlyB．highlyC．clselyD．cmpletely
12．If yu buy the prducts nline, yu can ________ them a few days later by pst.
A．reduceB．relaxC．receiveD．respect
13．T encurage peple t cme t the city, Zib set up a special “barbecue(烧烤) map” and added 21 new barbecue bus lines ________ peple can get n the bus t rest, get ff t eat.
A．s thatB．althugh
C．sinceD．even thugh
14．Glbal warming _________ terrible weather cnditins, such as pwerful strms.
A．is cnnected tB．is cmpared withC．is changed int
15．Everyne believed he was speaking the truth ________ he explained everything.
A．whileB．afterC．sD．althugh
三、完形填空
Hundreds f years ag, life was much harder than it is tday. Peple didn’t have mdern machines and there was n mdern medicine, 16 . Hwever, peple lived in a clean wrld.
Technlgy has brught many prblems. One f the biggest prblems 17 pllutin. Water pllutin has made ur rivers and lakes 18 . It kills fish and pllutes ur drinking water. Nise pllutin makes us 19 luder and becme angry mre easily. Air pllutin is the mst 20 pllutin. It’s bad t all living beings in the wrld.
Cars, planes and factries 21 pllute ur air every day. Smetimes the plluted air is s thick that it is like a quilt 22 a city. This kind f quilt is called smg(烟雾).
Many cuntries are making rules 23 pllutin. Factries mustn’t pur the waste water int the river r discharge dirty smke int the air.
We need t d 24 things. We shuld put waste things int the dustbin and nt thrw them n the grund. We can g t wrk by bus r with ur friends in the same car. If there are fewer peple driving, there will be 25 pllutin.
Making rules is nt enugh. Every persn must fight pllutin by fllwing the rules.
16．A．tB．alsC．eitherD．neither
17．A．isB．areC．wasD．were
18．A．cleanB．dirtyC．niceD．gd
19．A．tellB．t tellC．talkD．talking
20．A．dangerB．seriusC．difficultD．imprtant
21．A．allB．eachC．bthD．every
22．A．nB．inC．verD．thrugh
23．A．fightB．t fightC．prtectD．t prtect
24．A．many therB．many thersC．any therD．any thers
25．A．mreB．lessC．mstD．Least
四、阅读理解
A
Micrplastics （微塑料） are pieces f plastics smaller than 5 mm. They have entered every part f the planet tday. German scientists have even fund them in Arctic （北极） snw.
Scientists fund 1, 800 pieces f micrplastics per liter（公升） f snw. They have been wndering hw this pllutin makes its way t the Arctic. A new study finds that micrplastics in the snw cme frm the air. They fall ff and are mved by the wind. They mix with ice in the air and fall in the Arctic as snw.
Finding these plastics in Arctic snw means that we may breathe them in. We have fund a number f micrplastics in the snw arund cities.
Are they bad fr us? Scientists can’t answer this questin fr nw accrding t the Wrld Health Organizatin. We knw that ur bdies can’t take in large pieces f micrplastics. Hwever, if the plastics are small enugh, they can find ways int ur bdies and stay there fr a lng time. It can be bad fr ur health. It can even cntribute t the lung cancer （肺癌）.
We have als fund micrplastics in rivers and ceans arund the wrld. The research has fund that they have a lng way and run int ceans, ding harm t ur envirnment alng the way. They start in ur waste water when we wash clthes with plastic fibers （纤维）.The waste water then runs int rivers and ut t sea. Sea animals can eat them. If peple eat these animals, it means that we’re eating the plastics, t.
26．What have German scientists discvered abut the Arctic?
A．They have fund different kinds f liter there.
B．Micrplastics have caused pllutin there.
C．It can be the last clean place left n the Earth.
D．They have fund 1, 800 pieces f micrplastics there.
27．What des Paragraph 2 mainly tell us?
A．Where the micrplastics cme frm.B．What the Arctic snw is like.
C．Hw t cut dwn n Arctic’s micrplastics.D．Hw dangerus micrplastics are.
28．The underlined phrase “cntribute t” in Paragraph 4 means “________” in Chinese.
A．增加B．捐献C．导致D．影响
29．What can we learn frm the passage?
A．Micrplastics are a main cause f lung cancer.
B．Micrplastics are mainly fund in rivers and ceans.
C．Micrplastics can be bad fr the envirnment and ur health.
D．Sea animals are in danger nw because f plastic pllutin.
30．The writer wrte the passage mainly t tell us ________.
A．nt t travel t the ArcticB．nt t eat sea animals
C．t care mre abut ur healthD．t use fewer plastic bjects
B
We have fund plastic in the cean and in animals like birds, fish and whales. But fr the first time, scientists have fund plastic in the waste frm the human bdy, USA Tday reprted.
The findings came frm a pilt study led by scientists frm Envirnment Agency Austria. The researchers fllwed eight healthy vlunteers frm different parts f the wrld. The vlunteers wrte dwn what they ate fr a week and then prvided a stl sample fr testing.
Scientists fund nine different types f plastic in the samples, accrding t the study. An average (平均数) f 20 small plastic particles (颗粒) were fund in every 10 grams (克) f stl. The particles measured between 50 t 500 micrmeters.
“The smallest plastic particles can enter the bldstream, the lymphatic (淋巴的) system, and may even reach the liver (肝脏),” Philipp Schwab, wh tk part in the research, said t The Guardian.
Hwever, the scientists aren’t sure if the plastic is harmful t humans. They’re nt sure hw the plastic gt in the vlunteers’ bdies, either. But mst f the vlunteers said they drank frm plastic bttles and als ate seafd that culd include plastic frm cean pllutin.
In fact, plastic is everywhere arund us. Every year, an average f 8 millin tns f plastic waste ges int the ceans, accrding t Natinal Gegraphic. There, sunlight and waves break the plastic items dwn t the sizes f grains (谷物) f rice. Mst f the particles stay in the cean; thers can spread int the sil and the air. Culd plastic in the air fall nt fd and get int the human bdy?
Accrding t USA Tday, 90 percent f sea salt sld glbally cntains plastic. And even sme tap water has been fund t have tiny plastic particles in it.
31．Accrding t USA Tday, scientists have recently discvered ________.
A．plastic pllutin is wrse than ever
B．animals like birds r fish can eat plastic
C．sea salt is nt safe t eat any mre
D．plastic has been fund in human waste
32．The pilt study shws that ________.
A．scientists frm Australia fllwed eight healthy vlunteers
B．the vlunteers kept a recrd f what they ate fr a week
C．nine plastic particles were fund in the vlunteers’ stl samples
D．it prved that cean pllutin has becme rather serius
33．What des the underlined wrd “sample” in the passage prbably mean in Chinese?
A．样本B．类型C．工具D．报告
34．Frm Paragraph 4, we can knw ________.
A．plastic particles are inside all f us
B．plastic can harm the lymphatic system
C．plastic particles can be f a few different sizes
D．plastic particles can reach many parts f ur bdies
35．The writer prbably wants t tell us ________.
A．plastic des n harm t ur bdies
B．peple shuld stp drinking tap water
C．it can be hard t avid plastic in fd and drinks
D．the best way t deal with plastic waste is t burn it
五、语法填空
阅读下面的材料，在空白处填入一个适当的单词或括号内单词的正确形式。（提示：每空不超过三个单词）
In tday’s wrld, nt all peple knw nise is als a kind f pllutin and is harmful t human’s health.
Peple wh wrk and live in 36 (nise) cnditins g deaf easily. Fr example, many f the 37 (wrk) wh print newspapers and bks g deaf. Quite 38 few peple living near airprts als have hearing lss. Recently, it is 39 (reprt) that many teenagers in America can hear n 40 (well) than 65-year-ld peple d, because thse yung peple always listen t lud pp music. Making a lud nise 41 public is als a kind f pllutin. It nt nly disturbs thers 42 als des great harm t peple’s hearing. Cars and machines als prduce t much nise. Such pllutin makes peple feel 43 (cmfrtable) and unpleasant, and it can even cause 44 (they) t becme deaf.
Nwadays, many cuntries are 45 (try) t slve all srts f envirnmental prblems, including nise pllutin.
六、补全对话
根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。
A: Linda, yu dn’t lk well. 46 ?
B: I have a cugh.
A: I’m srry t hear that. 47 ?
B: I have been like this fr several days.
A: 48 ?
B: There is a chemical factry near my hme. It prduces a lt f terrible gas. The bad gas makes me cugh.
A: That’s t bad.
B: Yes, it is. 49 ?
A: I think yu shuld call the gvernment fr help.
B: 50 .
A: Dn’t wrry. I can help yu find the number n the Internet.
参考答案：
1．cmpletely
【详解】句意：——我必须告诉你，我干这活完全是个新手。——我相信你能应付得了。new为形容词，应用cmplete的副词cmpletely来修饰形容词。故填cmpletely。
2．t reduce
【详解】句意：生产更多的新能源汽车以减少空气污染。根据“Mre new energy cars are prduced…the air pllutin.”可知空处应填非谓语，生产更多的新能源汽车是为了减少空气污染，此处用不定式表目的，故填t reduce。
3．imprtant
【详解】句意：保护我们的环境是非常重要的。此句是“It is adj t d sth”句型，表示“做某事是……的”，形容词作表语，imprtance为名词，形容词为imprtant，表示“重要的”。故填imprtant。
4．have cut
【详解】句意：从去年开始，他们砍伐了太多树。根据“since last year”可知此处指从过去某一时间开始，延续至今，用现在完成时。主语是They，助动词用have，cut过去分词为cut。故填have cut。
5．washing
【详解】句意：森林可以阻止水冲走土壤。wash“冲刷”，动词，frm是介词，其后跟动名词作宾语。故填washing。
6．D
【详解】句意：学会明智地管理时间，你就能充分利用每一天。
考查副词辨析。usually通常；quickly快地；cmpletely完全地；wisely明智地。根据“and yu can make the mst ut f each day”可知要充分利用每一天，需要明智地管理时间。故选D。
7．A
【详解】句意：虽然她只有五岁，但她下棋下得很好。
考查连词辨析。Althugh尽管；But但是；S因此；Because因为。“she was nly five years ld”表示让步，虽然只有五岁，但下棋下得好，用Althugh引导让步状语从句。故选A。
8．A
【详解】句意：我的弟弟能够帮助我妈妈做家务尽管他只有四岁。
考查连词辨析。althugh尽管；if如果；but但是；until直到……为止。空后“he is nly 4 years ld”表示让步，尽管弟弟只有四岁，他能帮妈妈做家务，用althugh引导让步状语从句。故选A。
9．B
【详解】句意：——我认为《长津湖战役》是一部精彩的电影。——我完全同意你。我们能从中学到很多。
考查副词辨析。recently最近；cmpletely完全地；suddenly突然地；bravely勇敢地。根据“We can learn a lt frm it.”可知，两人的观点是一致的，对这部电影都持积极看法，用副词cmpletely修饰动词agree。故选B。
10．B
【详解】句意：越来越多的人正在尽力帮助当地农民提高产品销售。
考查动词辨析。lse失去；imprve提高；reduce减少。根据“help lcal farmers sales”可知帮助农民提高产品销售。故选B。
11．C
【详解】句意：警方正在密切监视嫌疑犯，寻找有助于破案的更多线索。
考查副词辨析。clearly清楚地；highly极其，非常；clsely严密地，暗中地；cmpletely完全地。根据“The plice are watching the suspect ... fr mre clues”可知，为了获得更多线索应是密切监视嫌犯，故选C。
12．C
【详解】句意：如果你在网上购买产品，你可以在几天后通过邮寄收到。
考查动词辨析。reduce减少；relax放松；receive收到；respect尊敬。根据“If yu buy the prducts nline, yu a few days later by pst.”可知是指收到自己买的产品，故选C。
13．A
【详解】句意：为了鼓励人们来城市，淄博设置了专门的“烧烤地图”，并新增了21条烧烤公交线路，以便人们上车休息，下车吃饭。
考查从属连词辨析。s that以便, 引导目的状语从句；althugh虽然，引导让步状语从句；since自从，引导时间状语从句；even thugh即使，引导让步状语从句。根据“set a special ‘barbecue(烧烤) map’ and 21 barbecue lines”可知是其目的是为了人们方便，应用s that引导目的状语从句。故选A。
14．A
【详解】句意：全球变暖与恶劣的天气条件有关，例如强风暴。
考查动词短语辨析。is cnnected t有关联，连接；is cmpared with与……相比；is changed int被更改为。结合句意和常识可知，全球变暖与强风暴等恶劣的天气条件有关。选项A符合语境。故选A。
15．B
【详解】句意：他解释了一切之后，大家都相信他说的是实话。
考查连词辨析。while当……时候；after在……之后；s因此；althugh尽管。根据“Everyne believed he was speaking the truth”可知解释过之后才相信他说的是实话，用after引导时间状语从句。故选B。
16．C 17．A 18．B 19．C 20．B 21．A 22．C 23．B 24．A 25．B
【导语】本文是一篇说明文。主要介绍了污染所带来的环境问题，及防止污染的一些措施。
16．句意：人们没有现代机器，也没有现代医学。
t也，用于肯定句句末，且空前有逗号隔开；als也，位于肯定句句中；either也，用于否定句句末；neither都不。此处表示也没有现代医学，此句是否定句，故选C。
17．句意：其中最大的一个问题就是污染。
is一般现在时，主语是单数形式；are一般现在时，主语是复数形式；was一般过去时，主语是单数形式；were一般过去时，主语是复数形式。陈述事实要用一般现在时，根据ne f可知此处应填is，故选A。
18．句意：水污染已经使我们的河流和湖泊变得肮脏。
clean干净的；dirty脏的；nice美好的；gd好的。根据“Water pllutin has made ur rivers and lakes ”可知，水污染让河流变得更脏，故选B。
19．句意：噪音污染使我们说话更大声，更容易发怒。
tell告诉，动词原形；t tell告诉，动词不定式；talk谈论，动词原形；talking谈论，动词不定式。make sb d sth“使某人做某事”，此空应填动词原形，噪声污染会让我们更大声说话，故选C。
20．句意：空气污染是最严重的污染。
danger危险；serius严重的；difficult困难的；imprtant重要的。根据“It’s bad t all living beings in the wrld”可知，对所有生物都有害，所以是最严重的污染，故选B。
21．句意：汽车、飞机和工厂每天都在污染我们的空气。
all都；each每一个；bth都；every每一个。根据“Cars, planes and factries… pllute ur air every day”可知，汽车、飞机和工厂都在制造污染，三者以上要用all表示“都”，故选A。
22．句意：有时被污染的空气很厚，就像被子盖在城市上。
n在……上；in在……里；ver在……上；thrugh穿过。根据“it is like a quilt… a city”可知，像被子盖在城市上，无直接接触用ver，故选C。
23．句意：许多国家正在制定规则来对抗污染。
fight作战，动词原形；t fight作战，动词不定式；prtect保护，动词原形；t prtect保护，动词不定式。根据“Many cuntries are making rules …pllutin”可知，指定规则是为了与污染作斗争，动词不定式表目的，故选B。
24．句意：我们需要做其他事情。
many ther许多其他的；many thers许多其他的人或物；any ther任何其他的；any thers任何其他的人或物。此空修饰复数名词things，要填many ther，故选A。
25．句意：如果开车的人少一些，污染就会少一些。
mre更多；less较少的；mst最多的；least更少的。根据“If there are fewer peple driving, there will be … pllutin”及常识可知，越少人开车，就会越少的污染，根据fewer可知，此空也应填比较级，故选B。
26．B 27．A 28．C 29．C 30．D
【导语】本文是一篇说明文，主要讲微塑料的特点及可能造成的危害。
26．细节理解题。根据“Scientists fund 1, 800 pieces f micrplastics per liter（公升） f snw. They have been wndering hw this pllutin makes its way t the Arctic.（科学家们发现, 每升雪中有1800块微塑料。他们一直想知道这种污染是如何到达北极的。）”可知科学家在北极发现了污染。故选B。
27．段落大意题。根据“A new study finds that micrplastics in the snw cme frm the air. They fall ff and are mved by the wind. They mix with ice in the air and fall in the Arctic as snw.（一项新的研究发现, 雪中的微塑料来自空气。它们会掉下来, 被风吹动。它们与空气中的冰混合, 以雪的形式落在北极。）”可知这一段告诉我们微塑料的来源。故选A。
28．词义猜测题。根据“Hwever, if the plastics are small enugh, they can find ways int ur bdies and stay there fr a lng time. It can be bad fr ur health. It can even cntribute t the lung cancer （肺癌）.”可知微塑料会对我们的健康有害甚至导致肺癌。故选C。
29．细节理解题。根据“It can be bad fr ur health.”及“The research has fund that they have a lng way and run int ceans, ding harm t ur envirnment alng the way.”可知微塑料对环境和我们的健康有害。故选C。
30．主旨大意题。根据“Hwever, if the plastics are small enugh, they can find ways int ur bdies and stay there fr a lng time. It can be bad fr ur health. It can even cntribute t the lung cancer （肺癌）.”及“The research has fund that they have a lng way and run int ceans, ding harm t ur envirnment alng the way.”可知文章告诉读者需要减少使用塑料制品。故选D。
31．D 32．B 33．A 34．D 35．C
【导语】本文主要介绍了在海洋和鸟类、鱼类、鲸鱼等动物身上发现了塑料。但据《今日美国》报道，科学家首次在人类粪便中发现塑料，并说明了塑料是如何进入人体的。
31．细节理解题。根据“scientists have fund plastic in the waste frm the human bdy, USA Tday reprted”可知据《今日美国》报道，科学家们在人体垃圾中发现了塑料。故选D。
32．细节理解题。根据“The vlunteers wrte dwn what they ate fr a week and then prvided a stl sample fr testing.”可知志愿者写下他们一周吃的东西，然后提供粪便样本进行测试。故选B。
33．词义猜测题。根据“The vlunteers wrte dwn what they ate fr a week and then prvided a stl sample fr fund nine different types f plastic in the samples”可知志愿者提供样本给科学家进行研究，故此处划线部分意为“样本”。故选A。
34．推理判断题。根据“The smallest plastic particles can enter the bldstream, the lymphatic (淋巴的) system, and may even reach the liver”可知最小的塑料颗粒可以进入血液、淋巴系统，甚至可能到达肝脏，可见塑料颗粒可以到达我们身体的很多部位。故选D。
35．推理判断题。根据“90 percent f sea salt sld glbally cntains plastic. And even sme tap water has been fund t have tiny plastic particles in it”可知全球销售的90%的海盐都含有塑料，甚至一些自来水也被发现含有微小的塑料颗粒，由此可知在日常生活中我们很难避免塑料。故选C。
36．nisy 37．wrkers 38．a 39．reprted 40．better 41．in 42．but 43．uncmfrtable 44．them 45．trying
【导语】本文主要介绍了噪音污染。
36．句意：工作和生活在噪音的环境中的人们容易变聋。根据“cnditins”可知，此处用形容词nisy“吵闹的”，作定语，修饰名词。故填nisy。
37．句意：例如许多印刷报纸和书的工人变聋。根据“wh print newspapers and bks g deaf.”可知，此处是指工人，wrker“工人”，many f后跟名词复数。故填wrkers。
38．句意：许多住在机场附近的人也会听觉损失。quite a few“很多的”，固定短语。故填a。
39．句意：最近据报道，在美国许多年轻人的听力没有65岁的老人的听力好，因为这些年轻人经常听声音很大的流行音乐。it is reprted“据报道”，固定用法。故填reprted。
40．句意：最近据报道，在美国许多年轻人的听力没有65岁的老人的听力好，因为这些年轻人经常听声音很大的流行音乐。由“than”可知，此处用比较级better“更好的”。故填better。
41．句意：在公共场合制造噪音也是一种污染。in public“在公共场合”。故填in。
42．句意：它不仅会打扰别人而且还会对人们的听力有巨大的伤害。nt nly... but als“不仅……而且……”，连词。故填but。
43．句意：这样的污染让人感到不舒服和不愉快，甚至会导致他们变聋。根据“Such pllutin makes peple feel ... and unpleasant”可知，噪音会让人感到不舒服，空处用形容词uncmfrtable“不舒服的”，作表语。故填uncmfrtable。
44．句意：这样的污染让人感到不舒服和不愉快，甚至会导致他们变聋。空处代指peple，用宾格代词them指代，在句中作宾语。故填them。
45．句意：如今许多国家正在努力解决所有种类的环境问题，包括噪音污染。由“are”可知，此处用现在分词trying，一起构成现在进行时。故填trying。
46．What’s wrng with yu/What’s the matter 47．Hw lng have yu been like this 48．What caused it 49．What shuld I d 50．But I dn’t knw the number
【导语】本文是一则关于化工厂废气引发疾病的对话。
46．根据“I have a cugh.”可知询问Linda怎么了。故填What’s wrng with yu/What’s the matter。
47．根据“I have been like this fr several days.”可知问像这样多久了。故填Hw lng have yu been like this。
48．根据“There is a chemical factry near my hme. It prduces a lt f terrible gas. The bad gas makes me cugh.”可知问咳嗽的原因。故填What caused it。
49．根据“I think yu shuld call the gvernment fr help.”可知问应该做什么。故填What shuld I d。
50．根据“I can help yu find the number n the Internet.”可知要讲不知道政府的号码。故填But I dn’t knw the number。