Scientists are warning that ________ emissions of carbon (碳排放) are cut, we could be heading for an environmental disaster.

A．before B．as

C． unless D．in case

 

C

【解析】C 考察連詞。Before在…之前；as因?yàn)椋捎冢?/span>unless除非，如果不；in case萬(wàn)一，假使；句義：科學(xué)家警告說(shuō)如果碳排放不下降，我們會(huì)面臨環(huán)境災(zāi)難。根據(jù)句義和邏輯關(guān)系可知C正確。

 

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：2014年高考二輪復(fù)習(xí)熱點(diǎn)預(yù)測(cè)：專(zhuān)題11定語(yǔ)從句英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Many college graduates are willing to start online shops to get over the period ________ they have difficulty finding a satisfactory job.

A. whereB. when

C. which D. that

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014年高考二輪復(fù)習(xí)熱點(diǎn)預(yù)測(cè)：專(zhuān)題10連詞和狀語(yǔ)從句英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

________ he stops driving himself like this, he'll have a breakdown.

A．Until B．Once

C．Since D．Unless

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014年高考二輪復(fù)習(xí)熱點(diǎn)預(yù)測(cè)：專(zhuān)題10連詞和狀語(yǔ)從句英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

—I don't mind how you do it ______ you finish the painting on time.

—OK, I see.

A．as well as B．as far as

C．as long as D．as fast as

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014年高考二輪復(fù)習(xí)熱點(diǎn)預(yù)測(cè)：專(zhuān)題10連詞和狀語(yǔ)從句英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

It will be another 50 years ______ our country is expected to reach the level of a medium developed country.

A．since B．before

C．that D．when

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014年高考二輪復(fù)習(xí)熱點(diǎn)預(yù)測(cè)：專(zhuān)題10連詞和狀語(yǔ)從句英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

—I wonder how much you charge for your services.

—The first two are free ________ the third costs $30.

A．while B．until

C．when D．before

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014年高考二輪復(fù)習(xí)熱點(diǎn)預(yù)測(cè)：專(zhuān)題10連詞和狀語(yǔ)從句英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

The old lady could give the child sympathy, ________ any practical help would be beyond her.

A．or B．so

C．and D．but

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014年高考二輪復(fù)習(xí)專(zhuān)題檢測(cè)：閱讀理解（二十二）英語(yǔ)試卷（解析版） 題型：閱讀理解

Every year Chris Brogan posts his three words for a new year. Many others and I have followed his lead for the past three or four years. They helped me a lot. My words for last year were“passion”, “focus”and“delegate”and I stayed true to them. This year, 2013, my goals are more personal and less professional.

FOCUS

Focus is making a repeat appearance on my list this year because I’m too much of a multitasker. The problem is that I have trouble finishing one thing with so many things calling me. When I was working as a writer, all my projects were handled via a schedule, I’m putting a fitness and housekeeping routine into my schedule.

HEALTH

I get so busy taking care of everyone else, and I forget to take care of myself and this has to change. My health suffers and my weight suffers. I have to get my health in check, not only for me but because I promised my 9-year-old son. I’ll make good food and lifestyle choices. I miss being thin, and it’s time to get it back.

CELEBRATE

What good is having it if I’m not taking time to enjoy it? I have a wonderful job, a happy family, and so much to be thankful for. So how come I spend all my time working? Last summer my family took our first vacation in four years, the best thing I’ve done for myself and my family in a long time. This year, I’m making sure to take time to enjoy life and celebrate its many blessings.

Do you have any words for 2013?

1.The underlined word “multitasker” probably refers to a person who　　　.

A. makes a living by writing

B. always fails to finish a task on time

C. has several things to do at the same time

D. pays more attention to fitness and housekeeping

2. Why does the writer have“HEALTH”as one of his three words?

A. He wants to take better care of others.

B. He’s gaining weight and feeling bad.

C. He did not take any exercise in the past.

D. He got the idea from his son.

3.What can we learn from the passage?

A. The word“CELEBRATE”can remind the writer to enjoy life.

B. The writer has a vacation with his family every four years.

C. The word“FOCUS”can help the writer focus on his family.

D. The writer used to be overweight for lack of exercise.

4.The best title for the passage might be　　　.

A. Three Words for 2013

B. Health Should Go First

C. Keep Organized

D. Goals for 2013

 

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014年高考二輪復(fù)習(xí)專(zhuān)題檢測(cè)：句法（十四）英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Not until he walked into the classroom　　　that he left his dictionary at home.

A. did he findB. had he found

C. he had foundD. he found

 

查看答案和解析>>

同步練習(xí)冊(cè)答案