课时提能练(二十) 必修5 Unit 2 The environment (B卷)
(对应学生用书第311页)
Ⅰ.阅读理解
(2017年甘肃省兰州市高考诊断考试)
We can achieve knowledge either actively or passively.We achieve it actively by direct experience，by testing and proving an idea，or by reasoning.
We achieve knowledge passively by being told by someone else. Most of the learning that takes place in the classroom and the kind that happens when we watch TV or read newspapers or magazines is passive.Conditioned as we are to passive learning，it's not surprising that we depend on it in our everyday communication with friends and coworkers.
Unfortunately，passive learning has a serious problem.It makes us tend to accept what we are told even when it is little more than hearsay(传闻)and rumor.
