If we _________ now to protect the environment, we’ll live to regret it.

A. hadn’t acted B. haven’t acted C. don’t act D. won’t act

 

C

【解析】

試題分析：句意：如果我們現(xiàn)在不行動(dòng)起來(lái)保護(hù)環(huán)境，我們會(huì)后悔的。主句是一般將來(lái)時(shí)，if條件句不能用一般將來(lái)時(shí)，用一般現(xiàn)在時(shí)代替一般將來(lái)時(shí)，選C。

考點(diǎn)：考查時(shí)態(tài)

 

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年山東省濰坊市高三考點(diǎn)回扣即高考模擬訓(xùn)練（四）英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Mother was busy washing dishes ________________ Father was watching TV．

A．until B．if C．since D．while

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年山東省濟(jì)寧市高三上學(xué)期期中考試英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Your son came to my class every day, but his attitude _____ he was not really interested at all.

A. expressed B. suggested C. explained D. described

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年山東省濟(jì)寧市高三上學(xué)期期中考試英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Some modem paintings are _____ my understanding; I simply can't understand what the painters really want to tell us.

A. within B. behind C. around D. beyond

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年山東省高三4月檢測(cè)考試英語(yǔ)試卷（解析版） 題型：閱讀理解

Many cities have subways and underground public transportation to take locals and tourists alike rapidly around the city．However, there’s something different about riding a London subway．It may not look different, but the historical value of one of England’s most popular forms of transportation is enough to make riding the subway a must when visiting London．With a little under 100 different stations, the subway can take you almost anywhere you need to go．

Riding a London subway, a person from other countries will notice one major difference: in London, people do not look at each other．In fact, eye contact is avoided at all times．That’s not rudeness―people are just too busy to bother looking．

Busy doing what, you ask? Well, they’re certainly not using the time for a moment of quiet thinking．Nor are they reading a book．New technology has replaced quiet habits．Today the only acceptable form of book on the London underground is an e-book．

Apple must earn a fortune from London commuters（使用月票上下班者）．Since the launch of the iPhone in 2007, over 40,000―yes, that’s 40,000 “apps” have been designed．

Commuters love them because they are the perfect time-fillers．One “app”, called iShoot, is a game that features tanks．Another one, Tube Exits, tells passengers where to sit on the train to be closest to the exit of their destination．iSteam clouds the iPhone screen when you breathe into the microphone．You can then write in the “steam” on your phone screen．

For those without an iPhone, another Apple product, the iPod, may be the distraction（消遣）of choice．It’s not just teenagers who “plug in” to their music－iPods are a popular way to pass the time for all ages．

And if games, e-books and music aren’t enough to keep you occupied, then perhaps you would prefer a film? The development of palm DVD technology means many commuters watch their favorite TV shows or films on the way to work．With all these distractions, it’s amazing that people still remember to get off the train．

1.People in London do not make eye contact on the subway because ______．

A．they are going to work and have no time to communicate with each other

B．they love reading books and do not want to be disturbed

C．they feel sleepy because of getting up early

D．they are busy playing games, reading e-books, listening to music or watching films

2.The underlined word “apps” in the fourth paragraph means ______．

A．computers B．programs downloaded for the iPhone

C．computer companies D．fortune from London commuters

3.Those who want to save time to reach where they go can download ______ to their iPhones．

A．iShoot B．Tube Exits C．iSteam D．iPod

4.The main idea of the passage is that ______．

A．London commuters are unfriendly to strangers

B．Apple has earned a lot of money from selling 40,000 apps

C．technology is changing how London commuters spend their traveling time

D．riding a London subway is a must when visiting London

5.The aim to write the passage is to ______.

A. praiseB. doubt C. blameD. state

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年山東省高三4月檢測(cè)考試英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

We need some more facts and figures ______ we make the final decision.

A. since B. before C. after D. until

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年山東省棗莊市高三高考模擬訓(xùn)練（五）英語(yǔ)試卷（解析版） 題型：閱讀理解

How far would you be willing to go to satisfy your need to know? Far enough to find out your possibility of dying from a terrible disease? These days that’s more than an academic question，as Tracy Smith reports in our Cover Story.

There are now more than a thousand genetic(基因的)tests，for everything from baldness to breast cancer，and the list is growing．Question is do you really want to know what might eventually kill you? For instance，Nobel Prize-winning scientist James Watson，one of the first people to map their entire genetic makeup, is said to have asked not to be told if he were at a higher risk for Alzheimer’(老年癡呆癥)．

“If I tell you that you have an increased risk of getting a terrible disease，that could weigh on your mind and make you anxious，through which you see the rest of your 1ife as you wait for that disease to hit you．It could really mess you up．”Said Dr．Robert Green，a Harvard geneticist.

“Every ache and pain，”Smith suggested，could be understood as“the beginning of the e nd．”“That’s right．If you ever worried you were at risk for Alzheimer's disease，then every time you can’t find your car in the parking lot，you think the disease has started．”

Dr．Green has been thinking about this issue for years．He led a study of people who wanted to know if they were at a higher genetic risk for Alzheimer’s．It was thought that people who got bad news would，for lack of a better medical term，freak out．But Green and his team found that there was “no significant difference”between how people handled good news and possibly the worst news of their lives．In fact，most people think they can handle it．People who ask for the information usually can handle the information，good or bad，said Green．

1.The first paragraph is meant to _________________．

A．a(chǎn)sk some questions B．introduce the topic

C．satisfy readers，curiosity D．describe an academic fact

2.Which of the following is true of James Watson?

A．He is strongly in favor of the present genetic tests.

B．He is more likely to suffer from Alzheimer's disease．

C．He believes genetic mapping can help cure any disease.

D．He doesn’t want to know his chance of getting a disease．

3.According to Paragraphs 3 and 4，if a person is at a higher genetic risk，it is ____________.

A．a(chǎn)dvisable not to let him know

B．impossible to hide his disease

C．better to inform him immediately

D．necessary to remove his anxiety

4.The underlined part“freak out”in Paragraph 5 is closest in meaning to _____________.

A．break down B．drop out

C．leave off D．turn away

5.The study led by Dr．Green indicates that people ________________.

A．prefer to hear good news

B．tend to find out the truth

C．can accept some bad news

D. have the right to be informed

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年山東省高三第一次模擬考試（三診）英語(yǔ)試卷（解析版） 題型：書(shū)面表達(dá)

假如你是李華，請(qǐng)代表全班同學(xué)給老師寫一封信。內(nèi)容要點(diǎn)如下：

1、課堂上您的微笑，給了我們信心（confidence）。

2、若您的課再生動(dòng)、有趣些，我們會(huì)更喜歡您。

3、我們都很優(yōu)秀，希望得到您更多的表?yè)P(yáng)。

4、請(qǐng)多給我們一些建議，少一些命令。

5、因?yàn)槟ぷ饕幌蚝芘�，所以，要學(xué)會(huì)休息，注意保重自己的身體。

注意：

1、以第一人稱寫；

2、詞數(shù)：100左右；

3、開(kāi)頭和結(jié)尾已為你寫好，不計(jì)入總詞數(shù)。

Dear teacher,

As your student, I would like to give you some suggestions on behalf of all my classmates．

_________________________________________________________________________________________________________________________________________________

Yours,

LiHua

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2013-2014學(xué)年安徽省馬鞍山市高三第一次教學(xué)質(zhì)量檢測(cè)英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Reading provides quiet, peaceful time alone and can be a good _______ from your busy life.

A. shelter B. escape C. absence D. departure

 

查看答案和解析>>

同步練習(xí)冊(cè)答案