(共11张PPT)
单元知识运用
教材回扣
用本单元所学短语完成句子
1. (弄明白)what the future city looks like,
a teacher runs a research among his students.?
2.He put the book (在……顶部)the
shelf so that she could find it easily.?
3.You’d better (不进入) their quarrel.?
答案:1.To find out 2.at the top of 3.keep out of
4.I haven’t seen the film Fast & Furious 8, but it .
(应该是) be a great movie.?
5.Every teacher (为……感到骄傲) his/ her
students’ achievements.?
答案:4.is supposed to 5.is proud of/ takes pride in
语境活用
Ⅰ.单句语法填空
1.It is careless you to make so many mistakes in the exam.?
2. (aim) at improving the level of English, English Corner is
held once a week.?
3.Bob reacted coldly to our suggestion, and his (react) made
us sad.?
答案:1.of 2.Aimed 3.reaction
4.—Would you like to drink some coffee with some sugar or milk?
—Oh,I’d like some milk (add) to the coffee.?
5.They discussed the problem for a whole day,but they couldn’t
come to a (conclude).?
6.We all know that a (balance) diet is of great importance
to our health.?
7.The more you listen to English,the (easy) you’ll feel in
speaking English.?
答案:4.added 5.conclusion 6.balanced 7.easier
8.Her (astonish) expression suggested that she hadn’t
expected that result.?
9.He used to play games on the Internet,but now he is used to .
(take) a walk after supper.?
10.After (balance) the advantages and the disadvantages, he
accepted the task.?
答案:8.astonished 9.taking 10.balancing
Ⅱ.单句语法改错
1.Put everything in the order before you leave the room.
2.Our school has been given some new teaching equipments since 2016.
3.The doctor thought have a holiday would be good for you.
4.The much a person reads,the wiser he will become.
5.One-third of the country are covered with trees and the majority
of the citizens are black people.
答案:1.去掉第一个the 2.将equipments改为equipment 3.将have改为having 4.将much改为more 5.将第一个are改为is
6.To our astonish, they arrived on time.
7.It makes sense to eat a reasonably balance diet when slimming.
8.Please take the medicine with boiling water.
9.The earth is forty-nine times large than the moon.
10.We need a piece that is much big than that.
答案:6.将astonish改为astonishment 7.将balance改为balanced 8.将boiling改为boiled 9.将large改为larger 10.将big改为bigger
微写作(借助过渡性词语或句子就能把下面的句子连接成一篇小短文)
1.杰克过去对化学不感兴趣,但是他的父母认为他应该学好化学。(used to;be
supposed to)
?
?
2.在一节实验课上,通过观察物质之间的反应,他改变了许多。(reaction;
substance)
?
?
答案:1.Jack used not to be interested in chemistry,but his parents thought he was supposed to learn chemistry well.
2.In a lesson in a lab,after he observed the reaction of substances, he changed a lot.
答案:3.The more he learned chemistry,the more interested he was in it.
4.Now his aim is to be a chemist and make a breakthrough in the area of chemistry.
3.他越学化学,就越觉得有兴趣。(the+比较级,the+比较级)
?
?
4.他现在的目标是成为一名化学家,在化学领域有所突破。(aim;in the area
of)
?
?
答案:5.His parents are proud of him.
5.他的父母为他感到自豪。(be proud of)
?
?
(共25张PPT)
Module 5 A Lesson in a Lab
原文缩写
关键知识
基础知识
原文缩写·再现 巧复现·重记忆
Different metals have different uses.When we use metals,
1. is important to know how they react with different
2. (substance).The 3. (react) of metals with these substances can be put in order.From the table we can find that sodium reacts both with oxygen and water while copper doesn’t react with water.When 4. (heat) in oxygen, calcium burns
5. (form) an oxide.?
答案:1.it 2.substances 3.reaction 4.heated 5.to form 6.rusts 7.preparations 8.equipment 9.to make 10.to 11.which 12.conclusion
In the second part of the experiment, our aim is to find out if iron 6. (rust) in dry air,in air-free water and in ordinary water.Having made full 7. (prepare),we need different pieces of 8. (equip).In order to finish the second stage of the experiment, we have to boil the water 9. (make) sure there is no air in it.We add some oil 10. the water,11. can keep air out of it.During each stage we will get different results and draw the 12. (conclude) that iron doesn’t rust in dry air and in air-free water but it rusts in ordinary water.?
1.expand v.膨胀,扩张,扩大;展开
关键知识·盘点 解疑难·提智能
典例链接:
①The director plans to expand the firm into an international
company.
经理计划把公司扩展成为跨国公司。
②I am quite satisfied with your explanation, so there’s no
need to expand on it.
我对你的解释很满意,没有必要再细说了。
③This novel is an expansion of a short story he wrote about
twenty years ago.
这部小说由他约20年前写的一篇短篇故事扩展而成。
词语辨析:
重点领悟 ①expand on/upon详述,进一步说明
②an expansion of sth.……的扩大/膨胀,……的详述/
展开
expand 扩大,扩张。不仅指尺寸的增加,还可指范围和体积的扩大
extend 伸出,延伸。指空间范围的扩大以及长度、宽度的朝外延伸,也可指时间的延长
spread 展开,传播。指使某物摊开、展开或消息等向四面八方传播开,着重于传播和散布
stretch 伸开,拉长,变松。一般指由曲变直、由短变长的伸展,而不是加长。强调形状的变化
【巧学助记】
巧学活用:
用 expand, extend, spread, stretch的适当形式填空
①My husband’s blue sweater has completely out of shape.
②Let’s the map out on the floor.
③Water as freezes.
④The forest in all directions as far as the eye could see.
stretched
spread
expands
extended
2.aim n.目标,目的(可数名词);瞄准,对准(不可数名词)
v.瞄准,对准;目标在于
典例链接:
①Living without an aim is like sailing without a compass.
生活中没有目标就如航海没有罗盘。
②I don’t know at whom the Minister’s remarks were aimed,but
he ought not to say such things.
我不知道部长的讲话针对谁,但是他不该说这样的话。
③After hours of walking in the forest aimlessly, we were lost.
漫无目标地在森林里行走了几个小时之后,我们迷路了。
④He aimed at the bird, but missed it.
=He took aim at the bird, but missed it.
他向鸟瞄准,但没有击中。
重
点
领
悟 ①take aim at sth.瞄准……;对准……
②achieve one’s aim 达到某人的目标?
③with the aim of...目的是……
④aim at/be aimed at (doing) sth.瞄准,对准;旨在(做)某事?
⑤without aim (=aimlessly) 无目的地;无目标地
3.react vi.反应;发生作用
典例链接:
①Because we can watch the neighbors react.(2017全国Ⅱ,阅读理解D)
因为我们可以观看邻居的反应。
②How did Wilson react to your idea?
= What is Wilson’s reaction to your idea?
威尔逊对你的想法有什么反应?
③When we use metals, it is important to know how they react with
different substances, for example, water and oxygen.
当我们使用金属的时候,重要的是我们应该知道它们和不同的物质,比如
水和氧气怎么发生反应。
重
点
领
悟 ①react to对……作出反应
②react with与……起(化学)反应
4.conclusion n.结论;结束
典例链接:
①From these facts we can draw some conclusions about how the
pyramids were built.
= From these facts we can reach/ come to/ arrive at some
conclusions about how the pyramids were built.
从这些事实我们可以得出一些关于金字塔是如何建造的结论。
②In conclusion,I would like to thank all that have helped me in
the research.
最后我要感谢那些在研究中帮助过我的人。
③He concluded his speech with a famous saying,“where there is a
will, there is a way.”
他以一句名言“有志者,事竟成”结束了他的演讲。
重
点
领
悟 ①draw/reach/come to/arrive at a conclusion得出结论
②in conclusion总而言之;最后
③conclude sth.with...就某事与……达成协议;以……结束
……
5.add...to...往……加入……
典例链接:
①Add some oil to the water, which will keep air out of water.
在水里加点油,这样会阻止空气进入水里。
②Add your scores up and see how much they add up to.
把你的得分加起来看看总分多少。
③He added that the theater’s location was also a reason.
(2017全国Ⅲ,阅读理解B)
他补充说,剧院的位置也是一个原因。
④Our cafe offers a complete menu of lunch and snack options, in
addition to seasonal specials.(2017全国Ⅰ,阅读理解A)
我们咖啡屋有午饭和零食菜单,还有时令小吃。
巧学活用:
①If you add those four figures ,it comes to over 500.
②It was raining cats and dogs,thus (add)to their difficulty
in transporting the supplies to the earthquake-stricken areas.
③The teacher asked me if I was ready, (add) that everybody
was waiting for me at the school gate.
up
adding
adding
重
点
领
悟 ①add sth.up 把……加起来
②add up to 总共是;总计为?
③add to增加;添加;加到
④add that...补充说……
6.be proud of为……感到骄傲/自豪
典例链接:
①Cai Lun is a person of whom we are proud.
蔡伦是一个我们为之骄傲的人。
②We take great pride in our country, who has made great progress
in every aspect in recent years.
我们为我们的祖国骄傲,最近几年在各个领域取得了很大的进步。
重
点
领
悟 take pride in/be proud of以……而自豪
7.be supposed to应当;理应
典例链接:
①The inspections were supposed to be a surprise, but keepers
sometimes had advance notice.
检查应该是突袭式的,但是管理者有时会事先得知。
②Look,suppose/ supposing you lost your job tomorrow, what would
you do?哎,假设你明天丢掉了工作,你会怎么办呢?
③I don’t suppose that he’ll agree.
我认为他不会同意。
重
点
领
悟 ①be supposed to be sth.被相信是……,被认为是……
②suppose/supposing(=if) 假设,假定
③I don’t suppose (that) ...我认为不会……?
8.It is hard to think of a world without metals.
很难想象一个没有金属的世界(是什么样子)。
典例链接:
①It was difficult for Cathy to accept that she wasn’t a
winner—ever.
对Cathy来说,接受她不是获胜者是困难的。
②It is foolish of him to buy such expensive furniture.
他买这么贵的家具真傻。
温馨提示:在“It is/was+adj.(for/of sb.) +to do sth.”结构中,for前面的形容词通常是difficult,necessary,important,quick,easy等,这些形容词多与事物的特征有关。而of前面的形容词常常是wise,kind,stupid, silly,bright,nice,good等,这些形容词常与人的性格特点有关。
巧学活用:
①It’s kind you to lend me a hand.
②It is difficult the boy to solve the problem.
③It’s no use (argue) with her—she won’t listen.
④Sometimes it may be helpful (use) examples to explain abstract concepts.
of
for
arguing
to use
基础知识·达标 细疏理·固双基
1. vi.膨胀
n.扩展,扩大
2. n.目标;目的
adj.漫无目的的
3. vi.(化学)反应
n.反应
4. n.设备;装备
vt.装备;配备
5. adj.普通的;平常的
expand
expansion
aim
aimless
react
reaction
equipment
equip
ordinary
单
词
过
关
6. n.物质
7. n.混合物
v.混合;搅拌
8. n.结论
v.下结论;得出结论
9. n.电
adj.电的;带电的;电动的
adj.与电有关的;用电的;电气科学的
10. vi.形成
adj.正式的
substance
mixture
mix
conclusion
conclude
electricity
electric
electrical
form
formal
单
词
过关
11. n.天平
adj.平衡的
12. adj.吃惊的;惊愕的
v.使吃惊,使惊讶
n.惊异,惊讶?
13.facility n. 。
14. n.(大学的) 科、系
balance
balanced
astonished
astonish
astonishment
(常作复数) 设备;工具
department
单
词
过关
1.add... ... 往……加入……
2.be proud / take pride ...
为……感到骄傲/自豪
3.be to 应当;理应
4.used 过去(常常)……
5. the area of 在……领域
6.put... order 使……整齐/有条理
7.find 弄清楚,弄明白
8.keep... 防止……进入
9.either... ... 要么……要么
10. the top of... 在……顶部
11. the bottom of... 在……底部
to
of
in
supposed
to
in
in
out
out
of
or
at
at
短
语
记
忆
1. think of a world without metals.
很难想象一个没有金属的世界(是什么样子)。
2. you are, you’ll see.
你靠得越近,看到得越多。
3. a table with the metals that react most at the
top, and the metals that react least at the bottom.
这里有一张表,反应最激烈的金属在最上面,而反应最差的在最下面。
It
is
hard
to
The
closer
the
more
Here
is
句
型
整
理
Module 5 A Lesson in a Lab
Ⅰ.话题延读
(2018泉州高三质量检查)
When students read articles about scientific discovery,they learn what worked.Scientists present the methods that got the best result.They often show only the results that are significant and important.What they won’t show are the mistakes or failures that came first.Yet sometimes those mistakes pointed the way to success.
It can take a long time and many experiments to achieve scientific success.Robbin,16,and Annabelle,15,learned that while working this summer in a biochemistry lab at Stony Brook University in New York.What’s more,they learned that failure is not necessarily something to fear.
“I like the idea of scientific research,”says Robbin.It’s the basis for “every lesson you learn in school and understanding everything you see in life”.This summer,Robbin has been working with Lauren,a chemistry student,who is making new drugs to fight harmful bacteria.At first,the tests made Robbin anxious.She worried that she might be making costly mistakes.But Lauren reassured her that finding out what doesn’t work is “just part of the learning process”.With time,the teen got comfortable with the idea that every experiment wouldn’t succeed.
Annabelle also learned a lot about failure and success.She worked with graduate student Agnieszka Gil.“Sometimes I try something and it takes a while for the experiment to run.”This means that finding out whether Annabelle did something wrong can be a stressful waiting game,because “if you did something wrong you need to do it again”.But she’s now learning to be patient and not to expect instant success.
In science,figuring out why something failed is what may just put them on the road to success.
1.What impresses students most in articles about scientific discovery?
A.Scientists’ achievements. B.The reasons for success.
C.The cause of mistakes. D.Stressful process of research.
2.What can we learn from the passage?
A.Robbin is a graduate student.
B.Lauren managed to make new drugs.
C.Annabelle learns the value of patience.
D.Agnieszka expected instant success.
3.What did Robbin and Annabelle have in common in their experiments?
A.They did their experiments independently.
B.They realized not all experiments would succeed.
C.They assisted graduate students to make new drugs.
D.They made severe mistakes in the experiments.
4.What does the writer intend to tell us?
A.The cause of making errors in science.
B.The significance of scientific discovery.
C.The importance of doing experiments.
D.The correct attitudes towards failures.
语篇解读:在阅读科学发现的文章时,人们往往对科学成就过度关心,其实科学成就往往是建立在无数次失败的基础之上的。Robbin和Annabelle在实验室里体会到了坦然接受实验失败的价值。
答案及剖析:
1.A 细节理解题。根据第一段的前三句可知,学生在阅读科学发现的文章时,对科学成就的印象最为深刻,故A项正确。
2.C 细节理解题。根据倒数第二段的最后一句“But she’s now learning to be patient and not to expect instant success.”可知,Annabelle学会了耐心,不期望立即成功。据此可以判断,Annabelle知道了耐心的价值,故C项正确。
3.B 细节理解题。根据第三段的最后一句“With time,the teen got comfortable with the idea that every experiment wouldn’t succeed.”可知,Robbin坦然接受了并不是每次实验都会成功的事实;根据第四段的最后一句“But she’s now learning to be patient and not to expect instant success.”可知,Annabelle学会了耐心,不期望立即成功。据此可知,Robbin和Annabelle的共同点是她们都意识到了不是每次实验都会成功,故B项正确。
4.D 写作意图题。通读全文可知,本文的主题句是文章最后一段“In science,figuring out why something failed is what may just put them on the road to success.”由此可知,探索科学世界,失败是成功之母。据此可以判断,本文旨在告诉人们对待失败的正确态度,故D项正确。
Ⅱ.七选五
(2018山东潍坊上学期期末考试)
Shorts may feel nice and casual on your legs on a warm summer’s day, but they’re not so gentle on your wallet.1. Usually the fact that one obviously uses less cloth than the other makes it hard to be accepted.So what gives??
It turns out that clothing sellers aren’t trying to cheat you by charging you too much money.They’re just pricing shorts according to what it costs to produce them.2. Extra material does go into a full pair of pants but not as much as you may think.As experts explain, shorts that don’t fall past your knees may contain just a fifth less cloth than ankle-length trousers.3. ?
Those same details that end up accounting for most of the material—pockets, belt loops, waist bands—also require the most human labor to make.4. The physical cotton in blue jeans accounts for just a small part of its price tag.Most of that money goes to pay the people stitching (缝合) it together, and they put in roughly the same amount of time whether they’re working on a pair of pants or some shorts.?
5. For another example, short-sleeved shirts cost roughly the same as long-sleeved shirts.There are also numerous invisible factors that make some shorts more expensive than nearly identical pairs, like where they were made,the marketing costs, and the brand on the label.If you don’t want to spend $40 on something that covers just a small piece of leg, stay at home with your wallet!?
A.More or less, shorts almost cost what pants do.
B.This is where the true cost of a garment is determined.
C.This price trend becomes popular across the fashion field.
D.This is because most of the cloth is sewn into the top half.
E.In general, a pair of shorts isn’t any cheaper than a pair of pants.
F.To tell you the truth, it is a real bargain to pay for a pair of shorts.
G.Customers are willing to purchase a pair of shorts if it is at a reasonable price.
语篇解读:文章主要讲述了短裤不比长裤便宜的原因。
答案:1-5 EADBC
Ⅲ.完形填空
(2018河北衡水中学上学期考试)
As a child, I was always told to “eat my greens”.These were the unappealing vegetables that sat on the edge of my plate.Peas,broccoli and green beans, all looked and tasted 1 .Let’s face it, when there were so many other delicious treats to 2 , why eat boring vegetables??
Since then my taste buds have 3 and I’m also fully aware of the health benefits of eating fresh vegetables.But we still need 4 of the amazing goodness these green super foods give us.In the UK, a campaign has been 5 for several years to encourage us to eat our “5 A Day”—five portions of fruit and vegetables.That’s 6 evidence has shown there are significant health 7 to getting at least five 80g portions of a variety of fruit and vegetables every day.?
But I struggle trying to fit these five portions into my daily 8 , partly because I have a sweet 9 and vegetables are, well, tasteless.Researchers have been 10 how to make eating vegetables more 11 .They analysed the psychology behind our food 12 and found that most of us are 13 by taste.Brad Turnwald from Stanford University says that “studies show that people 14 to think of healthier options as less tasty for some reason.”?
In Europe, a project called VeggieEAT has also been trying to find ways to get people to 15 more vegetables.Project leader, Professor Heather Hartwell believes in 16 encouraging people into eating the right things.One idea has been to put a 17 of a tasty looking fruit on a supermarket trolley as a 18 about buying something from the fruit store after looking at the picture.She says, “Choice is a really 19 thing.But making vegetables look attractive will increase their sales.”?
Certainly, eating “twisted citrus-glazed carrots” does sound tempting, even if it just 20 like a carrot, but if it makes us eat more vegetables then that can only be a good thing for our health.?
1.A.disgusting B.delicious C.ripen D.sweet
2.A.buy B.prepare C.offer D.enjoy
3.A.appeared B.developed C.existed D.shrank
4.A.reminding B.informing C.warning D.talking
5.A.planning B.aiming C.running D.intending
6.A.why B.how C.when D.because
7.A.needs B.benefits C.issues D.risks
8.A.diet B.education C.work D.exercise
9.A.tendency B.preference C.tooth D.appetite
10.A.showing B.discovering C.reporting D.studying
11.A.appropriate B.attractive C.beneficial D.independent
12.A.choices B.values C.wastes D.judgments
13.A.confused B.disturbed C.motivated D.challenged
14.A.manage B.decide C.agree D.tend
15.A.grow B.eat C.store D.harvest
16.A.slowly B.suddenly C.firmly D.seriously
17.A.variety B.lot C.picture D.number
18.A.sign B.concern C.clue D.hint
19.A.easy B.complex C.quick D.casual
20.A.looks B.smells C.tastes D.feels
语篇解读:蔬菜对健康有益——这是一个众人皆知的道理。然而,我们有时候会因为偏爱其他食物的口味而对吃青菜感到很不情愿。本文探讨一项旨在提倡人们多吃青菜的研究,并介绍一些商家用来吸引顾客购买蔬菜的销售技巧。
答案及剖析:
1.A 考查形容词作表语。根据上一句“These were the unappealing vegetables that sat on the edge of my plate”,说那些讨厌的蔬菜总是散落在我的盘子边上。可知是说这些蔬菜不好吃,令人厌恶。disgusting令人厌恶的;delicious 美味的; ripen 成熟的; sweet甜的。分析选项可知A符合题意。句意:长相恶心的豌豆、西兰花和青豆吃起来也很恶心(disgusting)。
2.D 考查动词辨析。buy买; prepare准备;offer提供; enjoy享受。根据“when there were so many other delicious treats”可知应该是享受(enjoy)美味。故选D项。句意:有那么多别的好吃的食物,为什么还吃那些难吃的蔬菜呢?
3.B 考查动词辨析。appear出现,显现;develop 开发,发展,(使)成长,进步;exist存在; shrink收缩,缩水。句意:从那以后,我的味蕾就发展(即改变)了,我还充分意识到了吃新鲜蔬菜对健康的益处。分析选项可知B项符合题意,故选B项。
4.A remind提醒; inform通知;warn警告;talk谈论。根据上一句“benefits of eating fresh vegetables”可知是时刻提醒记得(remind)这些绿色“超级食品”给我们的身体带来的惊人益处。因此选A项。
5.C 考查动词辨析。在英国,为鼓励人们“每天吃5份果蔬”而发起的宣传活动已经进行(run)了好多年的时间。分析句意可知,是这种宣传活动进行了好多年。只有run才有“运转或进行”之意。其余三项plan计划,打算; aim瞄准;intend打算,都不符合题意,故选C项。
6.D 考查连词辨析。根据上文可知宣传活动持续了好多年是结果,原因就是因为(because)有证据表明,人们每天至少食用5份80g的水果和蔬菜会对健康有很大益处。因此选D项。
7.B 考查名词辨析。根据上面第6小题的内容可知是说“人们每天至少食用5份80g的水果和蔬菜会对健康有很大益处(benefits)。” need需要; benefit 益处,利益;issue问题;risk危险。分析选项可知B项符合题意。故选B项。
8.A 考查名词辨析。diet日常饮食,education教育; work 工作;exercise锻炼,练习。根据上文的每天至少5种水果和蔬菜,可知是日常生活中,即“我仍在努力把这5份果蔬纳入到我的日常饮食(diet)中。”故选A。
9.C 考查固定搭配。tendency倾向,趋势;preference偏爱,优先权;tooth 牙齿; appetite欲望,胃口。句意:部分原因是我爱吃甜食,而且觉得蔬菜很无味。have a sweet tooth,为固定搭配,意为“喜欢吃甜食”,故选C项。
10.D 考查动词辨析。show表明,显示; discover发现;report报道;study研究。句意:研究人员一直在研究(study)如何让蔬菜更具吸引力。分析选项可知D项符合题意,故选D项。
11.B 考查形容词辨析。appropriate合适的,恰当的;attractive 有吸引力的; beneficial有益的;independent独立的。根据上句“vegetables are, well, tasteless”因为蔬菜无味,人们不喜欢吃,因此研究人员一直在研究如何让蔬菜更具吸引力(attractive),故选B项。
12.A 考查名词辨析。choice选择;value价值;waste废物; judgment判断。他们分析了我们选择食物时的心理。根据下一句可知,是我们对食物的选择(choice)。分析选项可知A项正确。
13.C 考查动词辨析。confuse迷惑; disturb打扰; motivate使有动机,促动,激发;challenge挑战。句意:他们分析了我们选择食物时的心理,发现大部分人都是受味道的驱使。分析句意可知C项正确。
14.D 考查动词辨析。manage设法,经营; decide 决定;agree 同意; tend照料,倾向于。研究表明,人们会因为某种原因而倾向于认为更健康的食物更难吃。分析选项可知D项符合题意,故选D。
15.B 考查动词辨析。在欧洲,名为VeggieEAT的项目一直在尝试找出能让人们多吃(eat)蔬菜的方式。根据16空后的“encouraging people into eating the right things.”可知B项正确。
16.A 考查副词辨析。慢慢地(slowly)鼓励人们进食恰当的食物。根据常识可知,想让人们接受某种东西,要慢慢地进行,分析其余三个选项(suddenly突然地;firmly坚决地;seriously严肃地)可知,都不符合题意,故选A。
17.C 考查名词辨析。其中一个想法是,把看起来很美味的水果图片(picture)放在超市的购物车上,以此来暗示消费者去水果区域购买东西。根据下文的内容可知是图片贴在购物车上,因此C正确。
18.D 考查名词辨析。sign记号,符号;concern关心,忧虑;clue线索,提示;hint暗示,提示,迹象。根据第17题的内容可知,把水果的图片贴在购物车上给消费者一种暗示(hint)。分析选项可知D项正确。
19.B 考查形容词辨析。easy容易的; complex复杂的; quick快速的;casual临时的, 随便的。句意:选择是一件非常复杂的事情。根据上文意思可知让人们多吃蔬菜,选择健康的蔬菜水果是很复杂的(complex),故选B项。
20.C 考查动词辨析。look看起来; smell闻起来; taste尝起来; feel摸起来。当然了,“橘汁胡萝卜”这菜名听起来确实很诱人,虽然尝起来(taste)像是胡萝卜。分析句意可知,胡萝卜虽然名字不同,但尝起来还是胡萝卜的味道。
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