人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection课后练习题

这是一份人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection课后练习题，共5页。

基础夯实
Ⅰ.单词拼写
1.400,000 square kilmetres f the Amazn b have already been defrested.
答案basin
2.The nvel presents ne aspect f the (改革) in the cuntryside.
答案refrm
3.Sme children (经历) a cmplete transfrmatin when they becme teenagers.
答案underg
4.He is friendly and (幽默的),and what he says can always please us as well.
答案humurus
5.If yu want t apply fr the jb,yu must s yur applicatin befre January 1st.
答案submit
6.The market has shwn (每年的) grwth f 20 percent fr several years.
答案annual
7.Whatever trubles arise,we’ll have peace f mind amidst seeming (混乱).
答案chas
8.It is assumed that wmen are nrmally mre (敏感的) than men.
答案sensitive
Ⅱ.短语填空
in search f,die ut,knwn as,bring abut,n behalf f,lead t,as well as,link ... t
1. my schl,I’m writing t invite yu t visit the paper-cutting exhibitin t be held in ur city.
答案On behalf f
2. China’s largest nature reserve,Changbaishan is a wnderful turist attractin.
答案Knwn as
3.Rescue wrkers are digging thrugh the ruins ther victims.
答案in search f
4.Educated peple may be surprised t find 200 years ag peple didn’t illness prblems in the envirnment.
答案link;t
5.The inventin and the use f the cmputer have great changes in the sciety.
答案brught abut
6.Since human appeared in the wrld,thusands f kinds f animals have .
答案died ut
7.Studying babies’ play may a better understanding f science.
答案lead t
8.As we can see,sme theme parks are amusing educatinal.
答案as well as
Ⅲ.把下列句子变为间接引语。
1.The teacher said t me,“Is this yur dictinary?”
→The teacher asked me dictinary.
答案if that was my
2.He said t me,“I saw Bb play the pian last Friday.”
→He tld me Bb play the pian .
答案he had seen;the Friday befre
3.Mary asked me,“Have yu seen the film Titanic?”
→Mary asked me the film Titanic.
答案if I had seen
4.He said,“I’m afraid I can’t finish the bk in a week.”
→He said that afraid finish the bk in a week.
答案he was;he culdn’t
5.I asked Tm,“Hw lng have yu been emplyed at this jb?”
→I asked Tm hw lng emplyed at jb.
答案he had been;that
6.Mum said t me,“Hw d yu deal with the disagreement?”
→Mum asked me with the disagreement.
答案hw I dealt
7.The dctr said t us,“Give bld if yu can and many lives will be saved.”
→The dctr bld if we culd and many lives wuld be saved.
答案tld us t give
8.“Lk thrugh yur test papers carefully befre handing them in,” the teacher said.
→The teacher thrugh ur test papers carefully befre handing them in.
答案tld us t lk
9.Tm said t Mary,“Dn’t leave yur keys n the table.”
→Tm asked Mary keys n the table.
答案nt t leave her
10.“Let’s g t the cncert in the Peples’ Stadium this evening,” Tm said.
→Tm t the cncert in the Peples’ Stadium that evening.
答案suggested ging
素养提升
Ⅳ.阅读理解
主题语境:人与自然 语篇类型:说明文 难度:★★☆☆
Over a hundred years ag in 1911,smething strange was fund in the glaciers f Antarctica.Grilffith Taylr—an Australian gelgist,had discvered a bld red stream puring ut f the ice cascades (瀑布) f Taylr Glacier!Ppularly knwn as the Bld Falls,scientists had nt been able t find the reasn behind the bld red liquid flwing thrugh the ice—until recently.The mystery f the Bld Falls had finally been slved.
When these falls were first discvered,scientists had believed that the red clur came frm a large amunt f red algae (海藻) cncentrated in the water.Red algae cntain a pigment (色素) which reflects red light,making the algae appear red.
This thery made sense,until it was later fund that algae d nt play a part in the red clr f the flwing liquid at all.What really causes Taylr Glacier’s waters appear bld red,is the presence f irn xide in the liquid.The waters f the bld falls are rich in salt and irn cntent,and when this water cmes in cntact with the air,it turns red—just like rust!The water in these falls is ften referred t as “brine” by scientists because f the high salt cntent in the water.
This reasning behind the red clrs f the falls was fund back in 2003.Hwever,the entire mystery had nt yet been slved.Hw is it then,that the Bld Falls are nt frzen?
Researchers at the University f Clrad and University f Alaska fund that inside the glacier,there was a netwrk f channels and reservirs that mve the water arund.Salt water has a lwer freezing temperature.In additin,when any substance underges a change in state,it gives ff heat.Therefre,the brine actually warms itself up while it’s freezing!Hw this wrks,is that when the brine is flwing thrugh the Taylr Glacier,sme f it des freeze.As a result f changing state frm liquid t ice,the brine gives ff heat.This heat is enugh t keep the rest f the brine in liquid frm,which is why it flws ut f the glacier.
Incredible new chemistry facts fund,and mystery slved!
【语篇解读】1911年,澳大利亚地质学家在南极洲的冰川中发现了一些奇怪的东西——血瀑布。众所周知,科学家一直无法找到冰川中的红色液体不结冰的原因。直到最近,血瀑布的秘密终于被揭开了。水中富含盐和铁,当水接触空气时,就会像铁锈一样变红,因为盐分很高,所以不结冰。
1.Accrding t the text,the red algae thery was nce cnsidered .

A.ridiculusB.reasnable
C.impracticalD.cmplex
答案B
解析推理判断题。根据第三段第一句“Thistherymadesense,untilitwaslaterfundthatalgaedntplayapartintheredclrftheflwingliquidatall.”可知,这个理论是有道理的,直到后来才发现海藻在流动的红色液体中不起作用。由此判断B项正确。
2.Why des the Bld Falls lk red in clur?
A.Because there is t much salt and irn in its water.
B.Because its liquid is rich in red algae.
C.Because the flwing liquid reflects red sunlight.
D.Because the air is thin and rare in Antarctica.
答案A
解析细节理解题。根据第三段的第三句可知,因为血瀑布富含盐分和铁,当水接触空气时,就会像铁锈一样变红。
3.What is the main reasn fr the Bld Falls’ nt freezing?
A.The water cntinued flwing cnstantly.
B.There is t much salt in the water.
C.The brine gives ff heat while freezing.
D.Temperatures aren’t high enugh fr flwing water.
答案C
解析细节理解题。根据第五段最后一句可知,当由液态向冰态变化时,盐水放出热量。这种热量足以使其余的盐水保持液态,这就是它不结冰的原因。
4.What is the passage mainly abut?
A.The discvery f the bld glacier.
B.The birth f the Taylr Glacier.
C.The flwing red water in Antarctica.
D.The mystery f the Bld Falls.
答案D
解析主旨大意题。通读全文可知,1911年澳大利亚地质学家在南极洲的冰川中发现了血瀑布。众所周知,科学家一直无法找到冰川中的红色液体不结冰的原因。直到最近,血瀑布的秘密终于被揭开了。D项“血瀑布之谜”最能概括文章的内容,体现文章的主旨。
Ⅴ.七选五
主题语境:人与自然 语篇类型:说明文 难度:★★★☆
Are yu wrried abut ur earth?D yu want t d what yu can t save it? 1 It may seem like the actins f ne persn wn’t make a difference,but there are actually many ways yu can help.Here are sme f them.
Turnitff.
Turn ff anything that uses electricity when nt in use. 2 If yu leave yur televisin n r dn’t turn ff lights,it wastes electricity.Remember t turn things ff when yu dn’t need them.
Startrecycling.
It’s nt just paper,plastic and glass that can be recycled — clthes can be,t. 3 It’s gd fr the envirnment and yu’ll get a new lk fr free!
4
Yu dn’t have t travel far t get what yu need,and prducts dn’t have t travel far t get t yu,either.Shp at farmers’ markets and buy fd that was prduced as clse t yur hme as pssible.And when yu’re nline shpping,try t find things that wn’t have t travel lng distances.
Savewater.
If yu dn’t let the water run when yu’re brushing yur teeth and take shwers instead f baths,yu will be using less water and less energy — but yu’ll still be just as clean! 5 Use a methd that requires less water t get the dishes clean.
A.Buy things nearby.
B.Think befre yu eat.
C.It’s hard t knw where t start.
D.Turn shrt jeans yu’ve grwn ut f int shrts.
E.Als,dn’t wash dishes with the water running cntinuusly.
F.This ges fr lights,televisins,cmputers,printers,and s n.
G.Bring a reusable water bttle with yu when travelling r at wrk.
答案与解析
【语篇解读】本文是说明文。文章介绍了几种保护环境的方法。
1.C 根据下文中的“butthereareactuallymanywaysyucanhelp”可知,C项“It’shardtknwwheretstart”在语意上和上文构成转折关系。
2.F 根据上文中的“electricity”和下文中的“televisin;lights”可知,F项中的“lights,televisins,cmputers,printers”与之相呼应。
3.D D项中的“jeans”和“shrts”呼应上文中的“clthes”。且D项表达的内容符合上文中提到的canberecycled。
4.A 根据下文中的“dn’thavettravelfar”和“asclsetyurhmeaspssible”可知,A项中的“nearby”与之相呼应。
5.E E项中的“washdishes”呼应下文中的“getthedishesclean”。且E项中的“dn’twashdisheswiththewaterrunningcntinuusly”和上文中的“yudn’tletthewaterrunwhenyu’rebrushingyurteethandtakeshwers”构成并列关系,E项中的Als承接上文。