2021军队职称英语理工类 补全短文一(解析3)

4.paragraph 6 ___.
Nanotechnology engineers try to mimic nature,building things atom-by-atom.Among other things,nanomotors could be used in optical circuits to redirect light,a process called optical switching.Futurists(未来主义者)envision(想象)a day when nanomachines,powered(被供以动力)by nanomotors,travel(旅行)inside your body to find disease(疾病)and repair(修复)damaged(受损的)cells(细胞).
4.F Nanomotors是段落主题词，关注多次涉及段落主题词的段尾句内容与F一致。因此F是答案。从内容上看：第六段预想了纳米发动机的用途，如用于光电路以改变光的方向(redirect light)和驱动纳米机器进入人体，消灭病灶。选项F“Possible fields of application in the future”概括了本段的大意。
A.remove(去除，移动)disease(疾病)
B.resist separating
C.shuffle between two molten metal droplets
D.power nanomachine
E.sop up molecules from the large droplet
F.transport nanoscale objects
被选项语法结构特征一致，都是动词短语结构。
5.Doctors(医生)envision(幻想)that the nanomotor(纳米发动机)would travel through(穿越)human bodies to __________.
5.答案是A。题干出现doctors envision，选项的内容应与医学有关，选项A是remove disease,正好与题干的内容相配，是答案。也可利用问题句中的细节信息词doctor作为答案线索，在文章中查找答案相关句：
(第一段)One day a similar(相似的)engine(发动机)might power(给...提供动力)a tiny(微小的)mechanical(机械的)doctor that would travel through your body to remove your disease.
B.resist(反抗)separating(分开)
C.shuffle between two molten metal droplets
D.power nanomachine
E.sop up molecules from the large droplet
F.transport nanoscale objects
6.Surface tension(表面张力)means(意味着)the tendency(倾向/趋势)of atoms(原子)or molecules(分子)to __________
6.B利用问题句中的细节信息词(surface tension)作为答案线索,在第三段第一句找到答案相关句：“surface tension--the tendency of atoms or molecules to resist(抗拒，反抗)separating(分开)--becomes more important(重要的)at small scales(级别)”。
C.shuffle between two molten metal droplets
D.power nanomachine
E.sop up molecules from the large droplet
F.transport(运输)nanoscale(纳米等级的)objects(物品，东西)
7.Nanoconveyors(纳米传送带)could be used to(被用于)__________.
7.F题干的nanoconveyor提示我们，纳米传送带的功能自然是传送纳米等级的物体，所以F是答案。也可以利用问题句中的细节信息词(nanoconveyors)作为答案线索,找到答案相关句：In 2006,they built a nanoconveyor,which moves(移动)tiny(微小的)particles(粒子)along(往前)like(象)cars in a factory(工厂).F是定语从句的概括句。
C.shuffle(来回移动)between two molten metal droplets
D.power nanomachine
E.sop up(吸收)molecules from the large droplet
8.Applying(应用，申请，施加)a small electric current(电流)causes(造成)atoms(原子)to __________.
8.C利用题干的细节信息结构a small electric current作为答案线索，在文章中找到答案相关句。
When a small electric current is applied to(被施加到)the droplets(小滴),atoms(原子)slowly get out of(从...出来)the larger(更大的)droplet and join(加入)the smaller one.The small droplet grows(增大)–but never gets as big as(与...一样大)the other droplet–and eventually(最终)bumps into(撞击)the large droplet.As they touch(接触),the large droplet rapidly(迅速地)sops up(吸收)the atoms(原子)it had previously(以前)lost(失去).This quick shift in(变化)energy(能量)//produces(产生)a power stroke(动力形成).E是对该段内容的概括。