Passage 1 Almost every family buys at least one copy of a newspaper every day. Some people subscribe(订阅) to as many as two or three newspapers. But why do people read newspapers? Five hundred years
Passage 1 What do we mean by a satisfactory standard of living? Obviously, it must include the basic necessities of life such as food, clothing and shelter. To get these necessities on regular basis,
Passage 1 Trees are useful to man in three important ways; they provide him with wood and other products; they give him shade; and they help to prevent droughts and floods. Unfortunately, in many pa