（2019外研版）选修三unit 4 A glimpse of the future 讲义（精讲）
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中小学教育资源及组卷应用平台
Unit 4 A glimpse of the future
●主谓一致(2)●
一．意义一致原则:从意义着眼，来解决主谓一致问题。有时主语形式上为单数，但意义上却是复数，那么谓语按照意义也用复数形式;而有时主语形式上为复数，但意义上却是单数，那么谓语按照意义亦用单数形式。
1.主语中有all,half,most,the rest等以及“百分数+名词”时，谓语动词的单复数取决于连用的名词。如:
The rest of the bikes are on sale today.
剩下的自行车今天出售
60% of the apple was eaten by the little boy.
这个苹果的60%都被这个小男孩吃了。
Most of the apples were rotten.大部分苹果都是烂的。
Most of the apple was eaten by a rat.这个苹果的大部分被老鼠吃了。
2.不定数量的词组，如:a part of,a lot of,lots of,plenty of等作主语时，谓语动词的单复数取决于量词后面名词的数。如:
A part of the textbooks have arrived.
一部分教科书已运到。
A part of the apple has been eaten up by the pig.
这个苹果的一部分已经被猪吃光了。
3.加减乘除用单数。如:
Fifteen minus five is ten.15减去5等于10。
4.表示时间、金钱、距离、度量等的名词作主语时，尽管是复数形式，它们作为一个单一的概念时，其谓语动词用单数。如:
Ten miles is a good distance.十英里是一个相当长的距离。
5.(1)通常作复数的集体名词，包括police,people,cattle等作主语时，谓语动词用复数。如:
The British police have only very limited powers.
英国警察的权力非常有限。
(2)通常作不可数名词的集体名词,包括jewellery, furniture,clothing,luggage 等作主语时，谓语动词用单数。如:
All her jewellery was in pawn.她把首饰全典当了
可作单数也可作复数的集体名词，包括audience, committee, government,family,enemy,group, party,team等作主语时谓语动词用单复数都可。如:
The committee has/have decided to dismiss him委员会决定解雇他。
6.“the+形容词/过去分词形式”表示一类人或事物，作主语时，谓语动词用复数。如:
The rich have benefited from the reforms, not the country as a whole.
富人而不是全体国民得益于这些改革。
二．就近原则:谓语动词的人称和数常常与靠近它的主语保持一致。
>1.由here,there,where等引导的倒装句中，(当主语不止一个时)谓语动词与靠近它的主语在数上一致。如:
Here comes the bus.公共汽车来了。
Here is a pen and some pieces of paper for you.给你一支钢笔和几张纸。
Where is your wife and children to stay while you are away？
你不在的时候,你妻子和孩子待在哪里呢
2.用连词 or,either..or, neither...nor, not only...but also等连接的并列主语，谓语动词与靠近它的主语在数上一致。如:
Neither the students nor the teacher knows anything about it.
学生们和老师都不知道这件事。
He or you have taken my pen.他或你拿了我的钢笔。
注意:①“one of+限定词+复数名词+who/that/which引导的定语从句”中,定语从句的谓语动词应为复数。如:
Mary is one of those people who keep pets.玛丽是饲养宠物者之一。
②“the only one of+限定词+复数名词+who/that/which引导的定语从句”中,定语从句的谓语动词应为单数。如:
Mary is the only one of those people who keeps pets.
玛丽是那些人中唯一一个饲养宠物的人。
单句语法填空
1.It is acknowledged that about 60 per cent of the students___________
(be) from the south; the rest of them_______( be) from the north and foreign countries.
2. Half of the artisans here_______(be)under 30 years old.
3.Now Tom with his roommates___________(play)football on the playground.
4. The number of words in this essay_____(be)about two thousand.
5.The audience_________(be)so immense that no seat was left unoccupied in the great hall.
6. Nothing but one desk and six chairs____(be)in the dormitory.
7. Between the two roads_________(stand)a grand TV tower with unique architecture-"Skyscraper Tower"
8.Either of you________(be)going to the fashion show there tonight.
9.Three fourths of the exquisite cake_________(eat)by Bob,and the rest_________(leave) on the table.
10.This pair of shoes________(be)my roommate's.
语法填空
Today is the 50th anniversary of No.l Middle School A number of schoolmates 1._____________(invite)to at- tend the meeting and the number 2._________(come)to 5.000.Many a famous scholar 3.__________(arrive)and more than one 4.__________(make)great contributions5._________the building of their school. It just 6._______
(fall) on the second day of the National Holiday, so many of the students studying at school 7._________(stay)at home 8._________the rest 9.__________(remain)at school helping their teachers to serve the 10._________ (guest).As far as everyone present at the meeting is concerned,their school is always the best.
难点1：
do 用于强调:do/does did+动词原形
数材例句
Still,I do think that developments in AI will on the whole make doing day-to-day things a lot easier.
不过，我确实认为，总体而言,人工智能的发展将使日常工作变得容易多了。
强调句型It is/was...that….” 通常强调主语、宾语和状语.不强调谓语。需强调谓语时,用“助动词do/does/did+谓语动词”，尤其是在祈使句或肯定句中,用来加强语气,谓语动词用原形。
(1)It is/was+被强调部分+that/who+其他部分”结构常译为“是……;……
正是……”，其特点是去掉强调结构“It is/was...that/who…”，并调整语序,原句仍成立。
(2)强调句型用于强调主语时，要注意谓语动词与主语在人称和数上的一致性。
I do know how upset the shop staff can get, but I try to persuade them to keep smiling.
我确实知道店员会有多生气，但我努力说服他们保持微笑。
②I do hope you'll like it!我真希望你会喜欢它!
③It was when I got back to my apartment___________ first came across my new neighbors.
正是当我回到公寓时,我第一次偶然遇见了我的新邻居们。
④ It was my father who/that did the experiment in the lab yesterday evening.
昨天晚上，是我父亲在实验室做实验。
难点2：
have no choice but to do sth.除了做某事别无选择;不得不做某事
教材例句：
We have no choice but to embrace it and regulate it.
我们别无选择,只能接受它并加以规范。
表达“除了做某事别无选择”的常见句型和结构还有:
have no alternative/option but to do sth
There is no alternative but to do sth
There is no choice but to do sth.
There is nothing to do but do sth.
can't choose but do sth.
( can )do nothing but do sth.
can't help but do sth.
have nothing to do but do sth.
在介词but之前,如果有实义动词do的某种形式,则其后的不定式不带to;如果but之前没有实义动词 do的某种形式，则其后不定式一般要带to。可以简化为:前有do,后无to;前无do，后有 to。
①When the polluting industries argue that we've lost the battle to control carbon pollution and have no choice but to adapt, it's a nonsense designed to make the case for business as usual.
当污染行业认为我们已经输掉了控制碳污染的战斗。除了适应之外别无选择时。这是一种旨在证明一切照旧的无稽之谈。
② He had no choice/alternative/option__________to wait for the next bus.
除了等下一辆公共汽车外,他别无选择。
③ There was nothing to do but watch TV last night.
昨天晚上除了看电视无事可做。
④ He did nothing but complain.
他什么也不做,除了抱怨。
难点3：can't wait to...迫不及待地……
教材例句
I can't wait to..我等不及要……
can't wait用来表示一种极不耐烦的心情,可作“多么想……，简直等不及了"“迫不及待地想要”讲,后面一般接带 to 的动词不定式。
can't 可用 can hardly 替换。
can't help doing sth.情不自禁做某事
Our living conditions are tolerable,but I can’t wait to leave.
我们的居住条件还是可忍可的,但是我迫不及待地想离开。
②They couldn’t wait_________(have)a try for themselves.
他们迫不及待地想尝试一下。
难点4：when it comes to...
当谈到……时，在……方面
教材例句
I think it's also fair to say that we can get our hopes up when it comes to finding cures for serious diseases, such as cancer.
我认为可以很公平地说,在寻找治疗类似癌症等严重疾病的方法方面,我们也可以满怀希望。
when it comes to... 当谈到……时，to为介词,后接名词、代词或动名词。 come to 苏醒;总计;达到
come to know/ realise开始认识到/意识到
come to a decision 做出决定
come to an end 结束
come to oneself恢复常态
come across(偶然)遇见;发现;被理解
come about 发生
come on 来吧;赶快;进行
come out 出版;出来;出现;结果是
come up 走近;上来;发芽;被提出
come up with 想出;提出
Besides,when it comes to receiving foreign students, I have gained rich experience.
除此之外,当谈到接待外国学生时，我的经验很丰富。
②When____________ comes to universities in China,as far as I'm concerned. I'll recommend Peking University.
谈到中国的大学,就我而言,我会推荐北京大学。
③The most hopeful data shared in the report shows clear evidence of parents serving as examples and important guides for their kids when it comes_________reading.
报告中分享的最有希望的数据显示,有明显的证据表明,在阅读方面,父母是孩子们的榜样和重要的指导者。
难点5 as though/f引导的从句
教材例句：
Robutt is just adjusted to act as though it loves you.
而罗布只是设定好，假装很爱你。
as though/if 意为“似乎,好像”。可以位于系动词look,taste,feel,sound 等词之后引导表语从句，也可以引导方式状语从句。
as though/if 引导的表语从句和方式状语从句的语气:
(1)as though/if 从句用陈述语气的情况。当说话者认为句子所述的是真实的或极有可能发生或存在的事实时。
(2 )as though/if 从句用虚拟语气的情况。 as though/if 意为“好像”引导的状语从句常用虚拟语气，表示与事实相反的动作或状态。
表示与现在事实相反的情况时，be动词各个人称都用were,但在口语中第一人称单数和第三人称单数常用was。
表示与过去的事实相反的情况时从句谓语可以用过去完成时态，也可用一般过去时态。
表示与将来的事实相反的情况(可能性不大)时，从句谓语用would might/could+ do。
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze that mirrors our fear of the dark.
在大多数城市，天空看起来好像已经没有星星了。只留下一层薄薄的雾反映出我们对黑暗的恐惧。
②When fat and salt are removed from food. the food tastes as if it is missing something.
当从食物中去除脂肪和盐时，食物尝起来就好像少了什么东西。
③Mary's description of the party was so vivid that I felt as if l____(be) there.
玛丽对这次聚会的描述是如此生动，以至于我觉得我好像去过那里一样。
so...that 引导结果状语从句
④ It sounds as if it is raining.听起来像是在下雨。
⑤I always read,using different voices, as though I______(be) acting out the stories with my voice and they loved it!
我总是用不同的声音阅读，就好像我在用我的声音表演故事,他们很喜欢!
⑥ He opened his mouth as if he would say something.
他张开嘴好像要说什么。
难点6 lt is/was not until... that...直到……才……
教材例句
It was not until an hour later that he noticed that Carolyn had left her emergency call device on the breakfast table.
直到一个小时后，他才注意到卡罗琳把急救电话忘在了早餐桌上。
"It is/was not until...that.…”结构通常是为了强调not until 引导的时间状语,即"It is/was +not until 时间状语(从句)+ that+句子其余部分.”。(1)until的基本用法如下:
until 用于否定句时，"not...until..."意为“直到……才……”，表示主句/
句子谓语的动作直到until状语所表示 的时间才发生，主句/句子的谓语动词是非延续性动词。
② until 用于肯定句时,意为“直到”，主句/句子的谓语动词必须是延续性动词。
③主句是将来时态，until 引导的时间状语从句用现在时态。
(2)在not...until句型中，如果"not+until”短语位于句首，句子/主句中的主语、谓语要部分倒装。这种句子常被译为“直到……才……”。
Bach died in 1750,but it was not until the early 19th century that his musical gift was fully recognized.
巴赫于1750年去世，但是直到19世纪早期他的音乐天赋才被完全承认。
Not until recently________(do)they encourage the development of tourist-related activities in the rural areas.
直到近来他们才鼓励农村地区旅游相关活动的发展。
Don't get off until the bus has stopped.车未停稳,切勿下车。
I won't leave here until you finish your work.
在你未完成工作之前我不会离开这儿。
Not until the meeting was over did he get the result.
直到会议结束，他才知道结果。
Not until位于句首表示强调，主可要用部分倒装语序
6.It was not widely accepted as a travel concept ________the late
1980s.
直到20世纪80年代末，它(生态旅游)才作为一种旅游理念被广泛接受。
本单元词组
artificial intelligence 人工智能
on the horizon 将要发生
happen to 发生于；偶然发生
in contrast 相比之下
be susceptible to 易受...影响
lie in 在于;集中于；存在于
go through 经历；经受
difference between...and......与...之间的不同
bank on 依靠；指望
be bound to 很有可能；肯定会
so far 到目前为止
hang out 闲逛
wipe out 彻底消灭
agree on 就...达成一致意见
as though 好像
change one’s mind 改变某人的主意
used to 过去常常
feel like 似乎；感觉好像
in contrast 与此相反；比较起来；相比之下（on the contrary）
on the whole 基本上；大体上
at risk 处于危险之中；收到威胁
in the long run 从长远来看
agree on 就...达成一致意见
be concerned about 关心；担忧
result in 导致；致使
get one’s hopes up 使某人充满希望
around the corner 在拐角处；在近处；即将来临
far ahead of one’s time 遥遥领先于某人的时代
sooner or later 迟早；早晚有一天
at the/a speed of 以...的速度
Set out 陈述；开始做某事；出发(+for+地点)
keep sb./sth. From doing sth.阻止某人/某物做某事
race up 向上跑；急剧上升
cry out 大声喊；大声抱怨
in shock震惊
point at （把....）对准；指着
start up 启动；创立；开始
make comments on/about 发表意见；对...进行评论
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Unit 4 A glimpse of the future
●主谓一致(2)●
一．意义一致原则:从意义着眼，来解决主谓一致问题。有时主语形式上为单数，但意义上却是复数，那么谓语按照意义也用复数形式;而有时主语形式上为复数，但意义上却是单数，那么谓语按照意义亦用单数形式。
1.主语中有all,half,most,the rest等以及“百分数+名词”时，谓语动词的单复数取决于连用的名词。如:
The rest of the bikes are on sale today.
剩下的自行车今天出售
60% of the apple was eaten by the little boy.
这个苹果的60%都被这个小男孩吃了。
Most of the apples were rotten.大部分苹果都是烂的。
Most of the apple was eaten by a rat.这个苹果的大部分被老鼠吃了。
2.不定数量的词组，如:a part of,a lot of,lots of,plenty of等作主语时，谓语动词的单复数取决于量词后面名词的数。如:
A part of the textbooks have arrived.
一部分教科书已运到。
A part of the apple has been eaten up by the pig.
这个苹果的一部分已经被猪吃光了。
3.加减乘除用单数。如:
Fifteen minus five is ten.15减去5等于10。
4.表示时间、金钱、距离、度量等的名词作主语时，尽管是复数形式，它们作为一个单一的概念时，其谓语动词用单数。如:
Ten miles is a good distance.十英里是一个相当长的距离。
5.(1)通常作复数的集体名词，包括police,people,cattle等作主语时，谓语动词用复数。如:
The British police have only very limited powers.
英国警察的权力非常有限。
(2)通常作不可数名词的集体名词,包括jewellery, furniture,clothing,luggage 等作主语时，谓语动词用单数。如:
All her jewellery was in pawn.她把首饰全典当了
可作单数也可作复数的集体名词，包括audience, committee, government,family,enemy,group, party,team等作主语时谓语动词用单复数都可。如:
The committee has/have decided to dismiss him委员会决定解雇他。
6.“the+形容词/过去分词形式”表示一类人或事物，作主语时，谓语动词用复数。如:
The rich have benefited from the reforms, not the country as a whole.
富人而不是全体国民得益于这些改革。
二．就近原则:谓语动词的人称和数常常与靠近它的主语保持一致。
>1.由here,there,where等引导的倒装句中，(当主语不止一个时)谓语动词与靠近它的主语在数上一致。如:
Here comes the bus.公共汽车来了。
Here is a pen and some pieces of paper for you.给你一支钢笔和几张纸。
Where is your wife and children to stay while you are away？
你不在的时候,你妻子和孩子待在哪里呢
2.用连词 or,either..or, neither...nor, not only...but also等连接的并列主语，谓语动词与靠近它的主语在数上一致。如:
Neither the students nor the teacher knows anything about it.
学生们和老师都不知道这件事。
He or you have taken my pen.他或你拿了我的钢笔。
注意:①“one of+限定词+复数名词+who/that/which引导的定语从句”中,定语从句的谓语动词应为复数。如:
Mary is one of those people who keep pets.玛丽是饲养宠物者之一。
②“the only one of+限定词+复数名词+who/that/which引导的定语从句”中,定语从句的谓语动词应为单数。如:
Mary is the only one of those people who keeps pets.
玛丽是那些人中唯一一个饲养宠物的人。
单句语法填空
1.It is acknowledged that about 60 per cent of the students___________
(be) from the south; the rest of them_______( be) from the north and foreign countries.
2. Half of the artisans here_______(be)under 30 years old.
3.Now Tom with his roommates___________(play)football on the playground.
4. The number of words in this essay_____(be)about two thousand.
5.The audience_________(be)so immense that no seat was left unoccupied in the great hall.
6. Nothing but one desk and six chairs____(be)in the dormitory.
7. Between the two roads_________(stand)a grand TV tower with unique architecture-"Skyscraper Tower"
8.Either of you________(be)going to the fashion show there tonight.
9.Three fourths of the exquisite cake_________(eat)by Bob,and the rest_________(leave) on the table.
10.This pair of shoes________(be)my roommate's.
语法填空
Today is the 50th anniversary of No.l Middle School A number of schoolmates 1._____________(invite)to at- tend the meeting and the number 2._________(come)to 5.000.Many a famous scholar 3.__________(arrive)and more than one 4.__________(make)great contributions5._________the building of their school. It just 6._______
(fall) on the second day of the National Holiday, so many of the students studying at school 7._________(stay)at home 8._________the rest 9.__________(remain)at school helping their teachers to serve the 10._________ (guest).As far as everyone present at the meeting is concerned,their school is always the best.
难点1：
do 用于强调:do/does did+动词原形
数材例句
Still,I do think that developments in AI will on the whole make doing day-to-day things a lot easier.
不过，我确实认为，总体而言,人工智能的发展将使日常工作变得容易多了。
强调句型It is/was...that….” 通常强调主语、宾语和状语.不强调谓语。需强调谓语时,用“助动词do/does/did+谓语动词”，尤其是在祈使句或肯定句中,用来加强语气,谓语动词用原形。
(1)It is/was+被强调部分+that/who+其他部分”结构常译为“是……;……
正是……”，其特点是去掉强调结构“It is/was...that/who…”，并调整语序,原句仍成立。
(2)强调句型用于强调主语时，要注意谓语动词与主语在人称和数上的一致性。
I do know how upset the shop staff can get, but I try to persuade them to keep smiling.
我确实知道店员会有多生气，但我努力说服他们保持微笑。
②I do hope you'll like it!我真希望你会喜欢它!
③It was when I got back to my apartment___________ first came across my new neighbors.
正是当我回到公寓时,我第一次偶然遇见了我的新邻居们。
④ It was my father who/that did the experiment in the lab yesterday evening.
昨天晚上，是我父亲在实验室做实验。
难点2：
have no choice but to do sth.除了做某事别无选择;不得不做某事
教材例句：
We have no choice but to embrace it and regulate it.
我们别无选择,只能接受它并加以规范。
表达“除了做某事别无选择”的常见句型和结构还有:
have no alternative/option but to do sth
There is no alternative but to do sth
There is no choice but to do sth.
There is nothing to do but do sth.
can't choose but do sth.
( can )do nothing but do sth.
can't help but do sth.
have nothing to do but do sth.
在介词but之前,如果有实义动词do的某种形式,则其后的不定式不带to;如果but之前没有实义动词 do的某种形式，则其后不定式一般要带to。可以简化为:前有do,后无to;前无do，后有 to。
①When the polluting industries argue that we've lost the battle to control carbon pollution and have no choice but to adapt, it's a nonsense designed to make the case for business as usual.
当污染行业认为我们已经输掉了控制碳污染的战斗。除了适应之外别无选择时。这是一种旨在证明一切照旧的无稽之谈。
② He had no choice/alternative/option__________to wait for the next bus.
除了等下一辆公共汽车外,他别无选择。
③ There was nothing to do but watch TV last night.
昨天晚上除了看电视无事可做。
④ He did nothing but complain.
他什么也不做,除了抱怨。
难点3：can't wait to...迫不及待地……
教材例句
I can't wait to..我等不及要……
can't wait用来表示一种极不耐烦的心情,可作“多么想……，简直等不及了"“迫不及待地想要”讲,后面一般接带 to 的动词不定式。
can't 可用 can hardly 替换。
can't help doing sth.情不自禁做某事
Our living conditions are tolerable,but I can’t wait to leave.
我们的居住条件还是可忍可的,但是我迫不及待地想离开。
②They couldn’t wait_________(have)a try for themselves.
他们迫不及待地想尝试一下。
难点4：when it comes to...
当谈到……时，在……方面
教材例句
I think it's also fair to say that we can get our hopes up when it comes to finding cures for serious diseases, such as cancer.
我认为可以很公平地说,在寻找治疗类似癌症等严重疾病的方法方面,我们也可以满怀希望。
when it comes to... 当谈到……时，to为介词,后接名词、代词或动名词。 come to 苏醒;总计;达到
come to know/ realise开始认识到/意识到
come to a decision 做出决定
come to an end 结束
come to oneself恢复常态
come across(偶然)遇见;发现;被理解
come about 发生
come on 来吧;赶快;进行
come out 出版;出来;出现;结果是
come up 走近;上来;发芽;被提出
come up with 想出;提出
Besides,when it comes to receiving foreign students, I have gained rich experience.
除此之外,当谈到接待外国学生时，我的经验很丰富。
②When____________ comes to universities in China,as far as I'm concerned. I'll recommend Peking University.
谈到中国的大学,就我而言,我会推荐北京大学。
③The most hopeful data shared in the report shows clear evidence of parents serving as examples and important guides for their kids when it comes_________reading.
报告中分享的最有希望的数据显示,有明显的证据表明,在阅读方面,父母是孩子们的榜样和重要的指导者。
难点5 as though/f引导的从句
教材例句：
Robutt is just adjusted to act as though it loves you.
而罗布只是设定好，假装很爱你。
as though/if 意为“似乎,好像”。可以位于系动词look,taste,feel,sound 等词之后引导表语从句，也可以引导方式状语从句。
as though/if 引导的表语从句和方式状语从句的语气:
(1)as though/if 从句用陈述语气的情况。当说话者认为句子所述的是真实的或极有可能发生或存在的事实时。
(2 )as though/if 从句用虚拟语气的情况。 as though/if 意为“好像”引导的状语从句常用虚拟语气，表示与事实相反的动作或状态。
表示与现在事实相反的情况时，be动词各个人称都用were,但在口语中第一人称单数和第三人称单数常用was。
表示与过去的事实相反的情况时从句谓语可以用过去完成时态，也可用一般过去时态。
表示与将来的事实相反的情况(可能性不大)时，从句谓语用would might/could+ do。
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze that mirrors our fear of the dark.
在大多数城市，天空看起来好像已经没有星星了。只留下一层薄薄的雾反映出我们对黑暗的恐惧。
②When fat and salt are removed from food. the food tastes as if it is missing something.
当从食物中去除脂肪和盐时，食物尝起来就好像少了什么东西。
③Mary's description of the party was so vivid that I felt as if l____(be) there.
玛丽对这次聚会的描述是如此生动，以至于我觉得我好像去过那里一样。
so...that 引导结果状语从句
④ It sounds as if it is raining.听起来像是在下雨。
⑤I always read,using different voices, as though I______(be) acting out the stories with my voice and they loved it!
我总是用不同的声音阅读，就好像我在用我的声音表演故事,他们很喜欢!
⑥ He opened his mouth as if he would say something.
他张开嘴好像要说什么。
难点6 lt is/was not until... that...直到……才……
教材例句
It was not until an hour later that he noticed that Carolyn had left her emergency call device on the breakfast table.
直到一个小时后，他才注意到卡罗琳把急救电话忘在了早餐桌上。
"It is/was not until...that.…”结构通常是为了强调not until 引导的时间状语,即"It is/was +not until 时间状语(从句)+ that+句子其余部分.”。(1)until的基本用法如下:
until 用于否定句时，"not...until..."意为“直到……才……”，表示主句/
句子谓语的动作直到until状语所表示 的时间才发生，主句/句子的谓语动词是非延续性动词。
② until 用于肯定句时,意为“直到”，主句/句子的谓语动词必须是延续性动词。
③主句是将来时态，until 引导的时间状语从句用现在时态。
(2)在not...until句型中，如果"not+until”短语位于句首，句子/主句中的主语、谓语要部分倒装。这种句子常被译为“直到……才……”。
Bach died in 1750,but it was not until the early 19th century that his musical gift was fully recognized.
巴赫于1750年去世，但是直到19世纪早期他的音乐天赋才被完全承认。
Not until recently________(do)they encourage the development of tourist-related activities in the rural areas.
直到近来他们才鼓励农村地区旅游相关活动的发展。
Don't get off until the bus has stopped.车未停稳,切勿下车。
I won't leave here until you finish your work.
在你未完成工作之前我不会离开这儿。
Not until the meeting was over did he get the result.
直到会议结束，他才知道结果。
Not until位于句首表示强调，主可要用部分倒装语序
6.It was not widely accepted as a travel concept ________the late
1980s.
直到20世纪80年代末，它(生态旅游)才作为一种旅游理念被广泛接受。
本单元词组
artificial intelligence 人工智能
on the horizon 将要发生
happen to 发生于；偶然发生
in contrast 相比之下
be susceptible to 易受...影响
lie in 在于;集中于；存在于
go through 经历；经受
difference between...and......与...之间的不同
bank on 依靠；指望
be bound to 很有可能；肯定会
so far 到目前为止
hang out 闲逛
wipe out 彻底消灭
agree on 就...达成一致意见
as though 好像
change one’s mind 改变某人的主意
used to 过去常常
feel like 似乎；感觉好像
in contrast 与此相反；比较起来；相比之下（on the contrary）
on the whole 基本上；大体上
at risk 处于危险之中；收到威胁
in the long run 从长远来看
agree on 就...达成一致意见
be concerned about 关心；担忧
result in 导致；致使
get one’s hopes up 使某人充满希望
around the corner 在拐角处；在近处；即将来临
far ahead of one’s time 遥遥领先于某人的时代
sooner or later 迟早；早晚有一天
at the/a speed of 以...的速度
Set out 陈述；开始做某事；出发(+for+地点)
keep sb./sth. From doing sth.阻止某人/某物做某事
race up 向上跑；急剧上升
cry out 大声喊；大声抱怨
in shock震惊
point at （把....）对准；指着
start up 启动；创立；开始
make comments on/about 发表意见；对...进行评论
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