低碳生活是指低能量、低消耗、低开支的生活方式，主要是为了降低碳特别是二氧化碳的排放。据此回答1—2题。

1、下图中表示节能标志的是

A．A

B．B

C．C

D．D

2、下列不符合“低碳生活”的日常行为方式是[ ]

A．短时间不用电脑时，启用电脑睡眠模式

B．多用电子邮件，少用传真、打印机

C．用小汽车作为代步工具

D．家庭尽量使用太阳能热水器

Throughout history has (1) changed his physical environment in order to improve his (2) of life. With the tools of technology he has (3) many physical features of the earth. He has (4) woodlands and prairies into farms and made lakes and reservoirs (5) of rivers for irrigation purposes or hydroelectric (6) . Man has also modified the face of the earth by (7) marshes and cutting through mountains to (8) roads and railways.
However, man’s (9) to the physical environment have not always had beneficial results. Today, (10) of the air and water is an increasing danger to the health of the (11) . Each day thousands of tons of gases come out of the exhausts of motor vehicles. (12) from factories pollutes the air of industrialized areas and the surrounding (13) of the countryside. The pollution of water is equally harmful. The whole ecological (14) of the sea is being changed and (15) wastes have already made many rivers lifeless.
Now (16) protection is more pressing than ever before. As we know, massive destruction of the environment has brought about (17) effects and even poses a great (18) to man’s existence. Indifference to these problems will mean committing suicide. Therefore, effective (19) should be taken and laws passed to (20) the environment. Otherwise, man is certain to suffer from the serious consequences caused by this lack of care for his living surroundings.