usage學案1譯林版必修5

1、111M5 Unit 2The Environment Language Points1.economy : n. 經(jīng)濟economic adj. 經(jīng)濟學的，經(jīng)濟上的These are the main economic plants of the region.The railway service in the country is no longer economic.economical adj. 節(jié)約的，節(jié)省的，不浪費的 The car is economical to run.One should be economial of time and energy.2.debate n.辯論，辯論會； vt / vi 辯論，爭論，討論debate (about) sth. with sb. 與辯論beyond debate 無可辯論open a debate 展開辯論hold a debate 舉行辯論會a warm debate 激烈的辯論辨析：deba。