(2013·湖北，22)Carbon dioxide, which makes a________between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.

(2013·湖北，21)Poetry written from the________of the urban youth tends to reveal their anxiety over a lack of sense of belonging.

 I'm afraid he's more of a talker than a doer，which is ________ he never finishes anything.(2011·山东)

(2012·辽宁)The newcomer went to the library the other day and searched for ________ he could find about Mark Twain.

The number of the employees has grown from 1,000 to 1,200.This means it has risen ________ 20 percent.

 He found it increasingly difficult to read，________ his eyesight was beginning to fail.

(2013·新课标Ⅰ，32)There's no way of knowing why one man makes an important discovery________another man，also intelligent，fails.

(2013·新课标Ⅰ，34)It was a real race________time to get the project done.Luckily，we made it.

(2013·新课标Ⅱ，11)A serious study of physics is impossible________some knowledge of mathematics.

(2013·北京，26)I have an appointment ________ Dr.Smith, but I need to change it.

Please remain ________；the winner of the prize will be announced soon.

Susan wanted to be independent of her parents.She tried ________ alone, but she didn't like it and moved back home.

There is a new problem involved in the popularity of private cars ________ road conditions need ________.

 I can't stand ________ with Jane in the same office.She just refuses ________ talking while she works.

The traffic rule says young children under the age of four and________ less than 40 pounds must be in a child safety seat

(2013·烟台高三联合测试)As the train ran faster and faster，the lights of the city were soon ________.

(2013·重庆部分学校高三联考)At the edge of the grass，there's a sign saying“________ the grass”．

(2013·南京部分学校高三联考)Suddenly I realized that I had stayed here long and ________ to say goodbye to the host.

(2013·成都部分高中高三质检)How can Margot ________ from her illness in this room when it is so dirty and dusty？It will only make her worse.

(2013·安徽十校素质检测)His injuries are extremely serious，but he's expected to ________.