2020版高考英語新創(chuàng)新一輪復(fù)習(xí)人教全國版講義：必修2Unit3Computers-學(xué)案下載-教習(xí)網(wǎng)

一、課前基礎(chǔ)自查
(一)分類記單詞——省時高效

Ⅰ.閱讀單詞(知其意)
1.calculator n．　　　　　　　　計算器
2.laptop n. 手提電腦
3.universal adj. 普遍的；通用的；宇宙的
4.revolution n. 革命
5.artificial adj. 人造的；假的
6.mathematical adj. 數(shù)學(xué)的
7.designer n. 設(shè)計師
8.network n. 網(wǎng)絡(luò)；網(wǎng)狀物
9.download vt. 下載
10.virus n. 病毒
11.naughty adj. 頑皮的；淘氣的
12.spoil vt. 損壞；寵壞
Ⅱ.重點單詞(寫其形)
1.calculate vt. 計算
2.sum n. 總數(shù)；算術(shù)題；金額
3.technology n．　　工藝；科技；技術(shù)
4.solve vt. 解決；解答
5.reality n. 真實；事實；現(xiàn)實
6.mobile adj. 可移動的；機動的
7.anyhow adv. (也作anyway)無論如何；
即使如此
8.goal n. 目標(biāo)；目的；球門；(進球)得分
9.happiness n. 幸福；快樂
10.signal vi.& vt. 發(fā)信號
n. 信號
11.type n. 類型
vt.& vi. 打字
12.arise vi. 出現(xiàn)；發(fā)生
13.character n. 性格；特點
14.coach n. 教練
15.electronic adj. 電子的
Ⅲ.拓展單詞(通其變)
1.operator n．(電腦)操作員；接線員→operate v．操作；經(jīng)營→operation n．操作；經(jīng)營
2.simplify vt.簡化→simple adj.簡單的
3.logical adj.合邏輯的；合情理的→logically adv.合邏輯地；有條理地；邏輯上
4.intelligent adj.智能的；聰明的→intelligence n．智力；聰明；智能
5.total adj.總的；整個的n.總數(shù)；合計→totally adv.完全地；整個地
6.personal adj.私人的；個人的；親自的→personally adv.就個人而言；親自→personality n．個性；人格；風(fēng)云人物；名人
7.application n．應(yīng)用；用途；申請；申請表→apply v．應(yīng)用；涉及；申請→applicant n．申請人；求職者
8.finance n．金融；財經(jīng)→financial adj.財政的；金融的；資金的
9.explore vt.& vi.探索；探測；探究→explorer n．探險家；勘探者→exploration n．勘探；探測；探險
10.appearance n．外觀；外貌；出現(xiàn)→appear vi.出現(xiàn)
[語境活用]
1.A team of explorers will explore the valley and the exploration will last 10 days.(explore)
2.After the president made an official announcement, she expressed her personal opinion.Personally speaking, I agreed with what she said.(person)
3.Any applicant who would like to apply to become an assistant in our company should send us an application before December 10.(apply)
4.—Can you say that dolphins are much more intelligent than other animals？
—Well, they are animals of high intelligence and they can communicate.(intelligent)
5.There were about 40 people at the party in total;_they sang and danced with abandon, totally forgetting the troubles in their lives.(total)

(二)練中記短語——記牢用活
寫準(zhǔn)記牢
語境活用(選用左欄短語填空)
1.from_...on　　　　　從……時起
2.in_a_way 在某種程度上
3.with_the_help_of 在……的幫助下
4.deal_with 處理；安排；對付
5.watch_over 看守；監(jiān)視；照管
6.provide_...for_... 給……提供……
7.have_...in_common 有……共同之處
8.share_...with_... 與……分享……
9.as_a_result 結(jié)果
10.make_up 彌補；編造；打扮；構(gòu)成
11.after_all 畢竟；終究
12.make_full_use_of 充分利用
1.You should make_full_use_of every precious minute to study.
2.With_the_help_of local media, he has already found 32 time twins from 13 countries, of whom there are 17 males and 15 females.
3.I'm going to deliver a speech about how to deal_with troubles.
4.They use specially trained dogs to watch_over their sheep at night.
5.What he said at the meeting was reasonable in_a_way.
6.There have been so many conflicts in the world recently.As_a_result,_people are concerned about the world peace.
7.Don't blame him for breaking that vase; after_all he is still a child.
8.Can I leave early this afternoon and make_up the time tomorrow？
9.They are friends and have much in_common,_so they are willing to talk.

(三)仿寫明句式——以用為本
教材原句
句式解讀
句式仿寫
1.I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.
我發(fā)育緩慢，差不多到了兩百年之后，查爾斯·巴比奇才把我制成了一臺分析機。
before引導(dǎo)時間狀語從句，意為“……之后才……”。
雖然颶風(fēng)已經(jīng)過去了，但是還要花幾個月的時間才能把它造成的破壞清理干凈。
Although the hurricane has gone, it will be months before_the_damage_is_cleared_up.
2.As time went by, I was made smaller.
隨著時間的流逝，我被做得更小了。
as引導(dǎo)時間狀語從句，意為“隨著”。
隨著技術(shù)的發(fā)展和生活水平的提高，互聯(lián)網(wǎng)已進入尋常百姓家。
As_technology_develops_and_life_improves,_the Internet has entered the ordinary people's homes.
3.And my memory became so large that even I couldn't believe it！
我的存儲量變得如此之大，以至于我自己都不能相信！
so ...that ...引導(dǎo)結(jié)果狀語從句，意為“如此……以至于”。
(2016·天津高考書面表達)你們?nèi)绱松屏?、體貼，以至于我們希望成為你們的朋友，無論你們在哪兒。
You are so_kind_and_considerate_that we hope to be friends with you no matter where you are.
4.By the time I was sixteen, my dream had come true.
在我滿十六歲時，我夢想成真了。
“by＋過去的時間/從句(過去時)”作狀語時，句子/主句謂語一般用過去完成時。
到20世紀(jì)90年代為止，計算機已經(jīng)在全世界流行起來了。
By the 1990s, the computer had_been_popular all over the world.

二、課堂重點深化

1．solve vt.解決；解答
　[自主體驗]
單句語法填空
①With most of the problems solved (solve), I felt a great weight taken off my mind.
②It may take a long time to find a solution (solve) to the problem.
　[系統(tǒng)歸納]
(1)solve problems　　　　解決問題
(2)solution n. 解決辦法；處理手段
a/the solution to sth. ……的解決方法
　[重點強化]
易錯處處防
③With this problem solving, this kind of medicine is now in regular production.solving→solved
佳句時時寫
④為了解決這個問題，我和我的朋友一心想要給學(xué)校提點建議。
In_order_to_solve_the_problem,_I, together with my friends, am bent on making some suggestions to our school.
2．signal vi.& vt.發(fā)信號n.信號
　[自主體驗]
句式升級
The bell rang, and signalled that school was over.
①The bell rang, which_signalled_that_school_was_over.(非限制性定語從句)
②The bell rang, signalling_that_school_was_over.(分詞作狀語)
[系統(tǒng)歸納]
(1)signal to sb.to do sth.　　示意某人做某事
signal (to sb.) that ... 示意(某人)……
(2)a traffic signal 交通信號
send out a signal 發(fā)出信號
　[重點強化]
易錯處處防
③She signalled the other girls that everything was all right.signalled后加to
佳句時時寫
④肢體語言能泄露很多你的情緒，因此，雙臂交疊站著傳出的信號是你處于防御狀態(tài)。
Body language can give away a lot about your mood, so standing with your arms folded can_send_out_a_signal that you are being defensive.
3．a(chǎn)rise vi.(arose, arisen)出現(xiàn)；發(fā)生；引起；起身；起床
　[自主體驗]
寫出下列句中arise的含義
①Seeing his mother return home, the boy arose from his chair immediately.起身
②New problems will arise one after another in the future.出現(xiàn)
③They arose at sunrise to get an early start to the park.起床
④At break, Mr.Connery got down to dealing with the matters arising from his class.引起
　[系統(tǒng)歸納]
(1)arise為不及物動詞，表示“出現(xiàn)；發(fā)生”時，主語一般為argument, difficulty, misunderstanding, problem, quarrel, trouble等抽象名詞，無被動語態(tài)。
(2)arise from＝arise out of　　由……引起/產(chǎn)生
　[重點強化]
易錯處處防
⑤The number of road accidents and the deaths arisen from those accidents has increased over the past year.arisen→arising
佳句時時寫
⑥眾所周知，身體上的原因可以引起情緒或精神上的問題。
As is known to all, emotional or mental problems can_arise_from_a_physical_cause.
　[聯(lián)想發(fā)散]
原形
詞性詞義
過去式
過去分詞
現(xiàn)在分詞
arouse
vt.喚醒；激起
aroused
aroused
arousing
rise
vi.升起；起身；增長；上升
rose
risen
rising
raise
vt.舉起；撫養(yǎng)；提高；飼養(yǎng)
raised
raised
raising

1．a(chǎn)s a result結(jié)果
　[自主體驗]
句型轉(zhuǎn)換
He was too careless; as a result, he failed the English test.
①He failed the English test as_a_result_of carelessness.
②His carelessness resulted_in his failure in the English test.
③His failure in the English test resulted_from his carelessness.
　[系統(tǒng)歸納]
(1)as a result of　　　　　　因為；由于
(2)result in 導(dǎo)致；造成
result from 由……產(chǎn)生；因……引起
　[重點強化]
易錯處處防
④We helped each other in studies and in a result we became good friends.第二個in→as
佳句時時寫
⑤(2016·北京高考書面表達)鄭和在海上航行了28年，到過30多個國家。因此，中國經(jīng)濟發(fā)展得更快，被世界上更多的人所認(rèn)識。
Zheng He spent 28 years on the ocean journeys and went to more than thirty countries.As_a_result,_China's economy developed faster and was known by more people in the world.
2．in a way在某種程度上；從某一角度看
[系統(tǒng)歸納]
all the way　　　一路上；自始至終；完全地
by the way 順便說一下
in no way 一點也不；決不(位于句首時，句子應(yīng)使用部
分倒裝)
in this way 用這種方法
in the way 擋道；礙事
on the way 在途中
　[重點強化]
用法條條清(選用上述短語填空)
①In_a_way,_the computer plays a more and more important role in our life and work.
②Mrs Smith finds it hard to clear up the mess, as her children are always in_the_way whenever she tries to.
③He decided that he would drive all_the_way home instead of putting up at a hotel for the night.
佳句時時寫
④面對困難時，你決不應(yīng)該失去信心。
In no way should_you_lose_heart when you are faced with difficulties.
⑤只有用這種方式他們才能獨立成長、真正成功。
Only_in_this_way_can_they_grow_up to be independent and become truly successful.
3．deal with處理；安排；對付；論及；涉及；與……打交道；與……做買賣
　[自主體驗]
寫出下列句中deal with的含義
①As a child, he never left his parents, so he didn't get used to dealing with everything in school independently.處理
②His article deals with many issues we are greatly concerned about.論及；涉及
③His work experience equipped him to deal with all kinds of people.與……打交道
[系統(tǒng)歸納]
(1)do with sth.　　　　　　處理某事
(2)deal in 經(jīng)營
make a deal 成交；達成交易
　[重點強化]
用法條條清(deal with/deal in/do with)
I don't know how to ④deal_with the man ⑤dealing_in second-hand cars.Can you tell me what to ⑥do_with my old car?
佳句時時寫
⑦(2015·浙江高考書面表達)對于組織班級活動我們或許有不同的觀點，我們也許有不同的方法來處理這一情況。
We may have different opinions in organizing class activities and we may have various ways to_deal_with_such_a_situation.
[名師指津]　deal with表示“處理”時，常與疑問詞how連用；do with表示“處理”時，常與疑問詞what連用。
4．a(chǎn)s引導(dǎo)狀語從句
　[教材原句]　As time went by, I was made smaller.
　[自主體驗]
①As time went on/by, he contented himself with a simple life.
＝With_time_going_on/by,_he contented himself with a simple life.
隨著時間的流逝，他滿足于過簡樸的生活。
②I got close enough to hear them speaking Chinese, and I said “Ni Hao”， just as_I_might_do_in_China.
我離他們足夠近能聽見他們正在說漢語，并且我像在中國可能做的那樣說了聲“你好”。
③As_it_was_getting_dark,_I turned around to start for home.
因為要天黑了，于是我掉頭回家。
④Child as_he_is,_he knows to help others.
他雖是個孩子，卻知道幫助別人。
　[歸納點撥]
用法規(guī)則
as 作為連詞的用法主要有：
(1)“當(dāng)……時候；一面……一面……；隨著”，引導(dǎo)時間狀語從句。
(2)“按照；如同”，引導(dǎo)方式狀語從句。
(3)“因為；既然”，引導(dǎo)原因狀語從句。
(4)“盡管”，引導(dǎo)讓步狀語從句，常用倒裝語序，可與though互換。
注意事項
with是介詞，意為“隨著”，后接名詞或代詞等構(gòu)成with短語或with復(fù)合結(jié)構(gòu)。
　[佳句背誦]
①(精彩開頭句)(2016·全國卷Ⅰ書面表達)As the summer break is approaching, I will be free for almost three months.
②(增分要點句)I think you look great as you are, and you're a wonderful person.
5．so/such ...that ...引導(dǎo)結(jié)果狀語從句
　[教材原句]　And my memory became so large that even I couldn't believe it!
　[自主體驗]
①I was a little nervous at first, but everyone was so_nice_and_friendly_that I soon stopped worrying.
起初我有些緊張，但所有成員都那么親切、友好，我很快就不擔(dān)心了。
②As can be seen from the picture, a boy is burdened with such_heavy_homework_that it seems as if he can hardly bear it any more.
正如圖畫上所看到的一樣，一個男孩肩負著那么沉重的作業(yè)以至于他看上去好像再也承受不住了。
　[歸納點撥]
用法規(guī)則
(1)so ...that ...“如此……以至于……”，引導(dǎo)結(jié)果狀語從句。其句型基本結(jié)構(gòu)：

(2)such ...that ...“如此……以至于……”，引導(dǎo)結(jié)果狀語從句。其句型基本結(jié)構(gòu)：
注意事項
當(dāng)so＋形容詞/副詞及such ...放在句首時，主句要用部分倒裝。例如：
So fast does he run that he is far ahead of others.

　[佳句背誦]
①(增分要點句)(2018·江蘇高考書面表達)Everyone is faced with such wonderful goods every day that they find they are difficult to choose from.
②(增分要點句)(2018·北京高考書面表達)So fast is Beijing developing that you can never imagine what it will be like next year.

本單元語篇話題與新課程主題語境“人與社會”中的“科學(xué)技術(shù)”子話題相對應(yīng)
一、話題語素積累多一點
子話題——科學(xué)技術(shù)

(一)淺易詞匯溫一溫
①organize　　 ②activity　　　 ③waste　　　 ④valuable
⑤electricity ⑥material ⑦exist ⑧experiment
⑨foresee ⑩function ?network ?online
?hopeful ?expert ?Internet ?machine

(二)生疏詞匯記一記
①analyse v．　　　　　　　　分析
②annual adj. 每年的；年度的
③breakthrough n. 重大進展；突破
④broad adj. 寬的；寬大的
⑤compass n. 指南針
⑥download vt. 下載
⑦drawback n. 缺點；不利條件
⑧fundamental adj. 十分重大的；根本的
⑨guarantee vt.& n. 保證；擔(dān)保
⑩impact n. 影響；沖擊
?patent n. 專利權(quán)；專利證書
?convenience n. 方便；便利
?creative adj. 創(chuàng)造性的
?disadvantage n. 不利條件；弱點；劣勢；短處

(三)常用詞塊憶一憶
①no more than 僅僅　　　　 ②take pleasure in 以……為樂
③face to face 面對面 ④participate in 參加
⑤computer games 電腦游戲 ⑥full of violence 充滿暴力
(四)寫作佳句背一背
①With the development of science and technology, more and more scientific inventions are being made, which bring great convenience to our daily life.
②A cellphone can make me keep in touch with my friends and family while the Internet can provide me with almost all the information.
③If we know little about the universe, how can we know our earth and its changes better?
④WeChat can provide a platform to show our talent and release our pressure, thus making it more and more popular with high school students.
二、話題書面表達亮一點

假定你是李萍，你的美國筆友杰克最近沉迷于電腦游戲，造成很多危害。請你給他寫一封書信，勸說他戒掉這個不良習(xí)慣，并提出建議。內(nèi)容包括：
1．浪費了本該學(xué)習(xí)的時間；
2．對身心造成危害；
3．你的建議。
注意：1.詞數(shù)100左右；
2．可適當(dāng)增加細節(jié)，以使行文連貫；
3．開頭和結(jié)尾已給出，不計入總詞數(shù)。
Dear Jack，
Hearing that you are addicted to playing computer games, I felt very worried.　

Yours，
Li Ping
[寫作4步走]

第一步：句寫對——給詞寫句

take exercise, participate in, activity, waste, valuable, play games, do harm to, health, full of violence, break away from　
1．它會使你浪費太多寶貴的時間。
It_will_make_you_waste_too_much_valuable_time.
2．長時間玩游戲會損害你的健康。
Playing_games_for_a_long_time_will_do_harm_to_your_health.
3．一些游戲充滿暴力。
Some_games_are_full_of_violence.
4．我強烈希望你能擺脫電腦游戲。越早越好。
I_strongly_hope_that_you_can_break_away_from_computer_games.The_earlier,_the_better.
5．你可以多讀好書，多做運動或參加一些社會活動。
You_can_read_more_good_books,_take_more_exercise_or_participate_in_some_social_activities.
第二步：量寫夠——語句擴充
6．句1增加定語從句“這些時間應(yīng)該花在學(xué)習(xí)或其他有意義的事情上”。
It_will_make_you_waste_too_much_valuable_time_which_should_be_spent_on_your_study_or_other_meaningful_things.
7．句2增加介詞短語“尤其是對你的眼睛”。
Playing_games_for_a_long_time_will_do_harm_to_your_health,_especially_to_your_eyes.
8．句3增加并列句“這將對你的心理健康有害”。
Some_games_are_full_of_violence,_and_this_will_be_harmful_to_your_mental_health.
9．句5增加目的狀語“為了過上有意義的生活”和“開闊你的視野”。
In_order_to_live_a_meaningful_life,_you_can_read_more_good_books,_take_more_exercise_or_participate_in_some_social_activities_to_expand_your_horizons.
第三步：語寫美——詞句升格
用定語從句改寫句8。
Some_games_are_full_of_violence,_which_will_be_harmful_to_your_mental_health.
第四步：篇連順——銜接成文
寫作主體開頭可用“Although it's believed that computer games are interesting， yet if you abuse them， they will be harmful in many ways.”進行概述。寫具體危害可用to begin with， in addition， worse still， therefore作好銜接過渡。最后用Looking forward to your good news.表達殷切希望。
Dear Jack，
Hearing that you are addicted to playing computer games, I felt very worried.
Although_it's_believed_that_computer_games_are_interesting,_yet_if_you_abuse_them,_they_will_be_harmful_in_many_ways.To_begin_with,_it_will_make_you_waste_too_much_valuable_time_which_should_be_spent_on_your_study_or_other_meaningful_things.In_addition,_playing_games_for_a_long_time_will_do_harm_to_your_health,_especially_to_your_eyes.Worse_still,_some_games_are_full_of_violence,_which_will_be_harmful_to_your_mental_health.Therefore,_I_strongly_hope_that_you_can_break_away_from_it.The_earlier,_the_better.In_order_to_live_a_meaningful_life,_you_can_read_more_good_books,_take_more_exercise_or_participate_in_some_social_activities_to_expand_your_horizons.
Looking_forward_to_your_good_news.
Yours，
Li Ping

一、復(fù)現(xiàn)單元考點——增強備考信心
Ⅰ.高考中的語法填空
1．(2015·北京高考)The fact that college students are financially (finance) dependent on their parents is nothing new.
2．(2015·江蘇高考)When he selects news of the other kind, he usually withdraws from the world of threatening reality (real) toward the dream world.
3．(2014·廣東高考)Eventually, however, I won the support of my family, and I sent in all the paperwork needed for application (apply)．
4．(2013·北京高考)If you are not totally (total) satisfied, return it at our expense and your money will be given back to you.
5．(2013·廣東高考)Some people are born into the right family while others are born with great intelligence (intelligent)．
6．(2013·天津高考)When asked about happiness (happy), we usually think of something extraordinary.
7．(2012·陜西高考)Just as people convey messages about themselves with their appearances (appear), so do companies.
Ⅱ.高考中的完形填空
(選用total, goal, deal with填空)
1．(2014·福建高考完形填空)Each year I would ask my father if I could skip the recital “just this once”．And each year he'd shake his head, muttering (嘀咕) something about building self-confidence and working towards a __39__.goal
2．(2014·湖南高考完形填空)Besides, through ironing I've learned the method for solving even the most troublesome problems.“__47__ wrinkles one at a time，” as Mom might have said, “and before long everything will get ironed out.”Deal_with
3．(2010·陜西高考完形填空)On my way home at the end of the day, I saw the busker again and he was packing up.I watched him pick up the hat and walk to a cafe counter.There he poured the __43__ contents into a tin collecting for an earthquake fund-raising (募捐) event.He was busking for charity (慈善)！total
二、復(fù)現(xiàn)話題詞匯——提高閱讀準(zhǔn)度
新高考下的命題新視角：科學(xué)技術(shù)的發(fā)展正在影響著你我的生活，我們拿出智能手機，連上免費WiFi，打開淘寶、京東一鍵購物，打開微信、QQ與好友聊天……這些都是科學(xué)技術(shù)對人們生活的貢獻。該話題也是高考?？荚掝}。平時多關(guān)注前沿科技的最新發(fā)展與創(chuàng)新，做科技的小主人。
[話題感悟]
學(xué)習(xí)目標(biāo) ——語篇復(fù)現(xiàn)詞匯，活學(xué)活用記憶更深
(加藍詞匯為本單元話題詞匯，讀文時請揣摩其用法)
[1] Today just as technology changed the face of industry, farms have undergone an “agricultural revolution”．On the farm of today, machines provide almost all the power.
[2] One of the most important benefits will be the farm computer.A few forward-looking farmers are already using computers to help them run their farms more efficiently.The computers help them keep more accurate records so they can make better decisions on what crops to plant, how much livestock to buy, when to sell their products, and how much profit they can expect.Many computer companies have been developing special computer programs just for farmers.Programs are being written for hog producers, grain farmers, potato farmers, and dairy farmers.In the future, farmers will be able to buy computer programs made to their needs.Because of the growing importance of computers on the farm, students at agricultural colleges are required to take computer classes in addition to their normal agricultural courses.There can be no doubt that farmers will rely on computers even more in the future.While the old-time farm depended on horse power, and modern farms depend on machine power, farms of the future will depend on computer power.
[3] Another technological advance which is still in the experimental stage is the robot, a real “mechanized hired hand” that will be able to move and, in some ways, think like a human being.Agricultural engineers believe that computer-aided robots will make surprising changes in farming before the end of the century.Unlike farmers of the present, farmers of the future will find that many day-to-day tasks will be done for them.Scientists are now developing robots that will be able to shear (剪) sheep, drive tractors, and harvest fruit, even complex jobs will be done by robots.For example, in order to milk their cows, farmers must first drive them into the barn, then connect them to the milking machines, watch the machines, and disconnect them when they are finished.In the future, this will all be done by robots.In addition, when the milking is completed, the robots will automatically check to make sure that the milk is pure.The complete mobilization of the farm is far in the future, but engineers expect that some robots will be used before long.
語篇解讀：本文為一篇說明文，介紹了科學(xué)技術(shù)，尤其是電腦在農(nóng)業(yè)方面起到的重大作用。不久的未來，機器人將在農(nóng)業(yè)中發(fā)揮重要作用。
1．Which sentence carried the main idea of the whole passage?
A．The first sentence of the first paragraph.
B．The first sentence of the second paragraph.
C．The first sentence of the third paragraph.
D．The last sentence of the second paragraph.
解析：選A　主旨大意題。通過閱讀全文，講述農(nóng)業(yè)方面使用電腦以及未來的機器人可知整篇文章都是圍繞第一段第一句展開的，即“農(nóng)業(yè)的技術(shù)革命”，故答案為A。
2．According to the passage, computers can NOT help farmers decide ________.
A．how much money they can earn from their products
B．whether to plant a certain kind of crop
C．what livestock to raise
D．when to sell their products
解析：選C　細節(jié)理解題。由第二段中的“The computers help them ...they can expect.”可知A、B、D三項正確，C項中應(yīng)把what改為how much。
3．Which of the following statements is TRUE?
A．Farmers in the future will depend totally on computers.
B．Both computers and robots have been in use on today's farms.
C．Farmers mainly use machines on their farms at present.
D．Students at agricultural colleges must take computer classes because they can do nothing without the help of computers on today's farms.
解析：選C　推理判斷題。由第一段中的“On the farm of today, machines provide almost all the power.”可推知C項正確。A項中使用totally有誤；B項中robots have been in use說法有誤；D項they can do nothing ...farms有誤。
4．According to the engineers, ________ will be done by robots in the near future.
A．a(chǎn)ll farm work　　　　　　 B．milking cows
C．most of the farm work D．some farm work
解析：選C　細節(jié)理解題。由第三段中的“Agricultural engineers believe that computer-aided robots will make surprising ...many day-to-day tasks will be done for them.”可知答案為C。
學(xué)習(xí)目標(biāo) ——題后把脈規(guī)律，練后得法理解更透
主旨大意技法(1)——讀首段(句)確定文章大意
有些文章或段落開門見山，往往在開頭即段首就提出主題，也就是文章的主題句，隨之用細節(jié)來解釋、支撐或發(fā)展文章主題句所表達的主題思想，在說明文、議論文、科技文獻以及新聞報道中多采用這種形式。因此，要尋找此類文章的主旨大意就需要細心研究文章的首句和首段。同樣，尋找段落的主旨大意則要研究段落的首句。本文中的第一段第一句即為全文中心，整篇文章都是在圍繞第一段第一句展開，由此可以得出第1題的答案。