2019版英语人教版必修5训练:Unit 3 Section Ⅲ— Using LanguageSumming Up & Learning Tip .docx
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1、Section Using Language,Summing Up & Learning Tip一、单词拼写1.Do you want to be one of space (居民)?答案:citizens2.Some people are (贪婪的) for money and something alike.答案:greedy3.Just for an (片刻)I thought he was going to refuse.答案:instant4.When did they (定居)down in the city?答案:settle5.I cant imagine the life i
2、n a (太空)station.答案:space二、用下列单词或短语的正确形式填空lacksweep awaycatch sight oftake upimpressconstantoptimisticsurroundspeed upfasten1.I the hobby at the age of six.答案:took up2.Many houses are by the flood.答案:swept away3.An will not complain about the difficulties in life.答案:optimist4.He is in responsibility.
3、答案:lacking5.She left out a cry of surprise when she the big diamond.答案:caught sight of6.He the rope to the post.答案:fastened7.I the car to catch up with that blue one.答案:speeded up8.He didnt realize that he was by dangers.答案:surrounded9.She is changing her mind.答案:constantly10.His words are deeply up
4、on my memory.答案:impressed三、用适当的介词或副词填空1.The leaves were swept into the air by the wind.答案:up2.The crowds fled all directions the moment the bomb exploded.答案:in3.The little girl pressed her nose the window.答案:against4.Whatever difficulty he met,he is always optimistic it.答案:about5.My teaching style i
5、s similar that of most other teachers.答案:to四、阅读理解(2018北京高考改编)Humans produce more than 300 million tons of plastic every year.Almost half of that winds up in landfills(垃圾填埋场),and up to 12 million tons pollute the oceans.So far there is no effective way to get rid of it,but a new study suggests an ans
6、wer may lie in the stomachs of some hungry worms.Researchers in Spain and England recently found that the worms of the greater wax moth can break down polyethylene,which accounts for 40% of plastics.The team left 100 wax worms on a commercial polyethylene shopping bag for 12 hours,and the worms cons
7、umed and broke down about 92 milligrams,or almost 3% of it.To confirm that the worms chewing alone was not responsible for the polyethylene breakdown,the researchers made some worms into paste(糊状物) and applied it to plastic films.14 hours later the films had lost 13% of their massapparently broken d
8、own by enzymes(酶) from the worms stomachs.Their findings were published in Current Biology in 2017.Federica Bertocchini,co-author of the study,says the worms ability to break down their everyday foodbeeswaxalso allows them to break down plastic.“Wax is a complex mixture,but the basic bond in polyeth
9、ylene,the carbon-carbon bond,is there as well,”she explains.“The wax worm evolved a method or system to break this bond.”Jennifer DeBruyn,a microbiologist at the University of Tennessee,who was not involved in the study,says it is not surprising that such worms can break down polyethylene.But compar
10、ed with previous studies,she finds the speed of breaking down in this one exciting.The next step,DeBruyn says,will be to identify the cause of the breakdown.Is it an enzyme produced by the worm itself or by its gut microbes(肠道微生物)?Bertocchini agrees and hopes her teams findings might one day help em
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