【寫(xiě)作】:
1.綜合作文:
文章說(shuō)推行新型燈泡(CFL)替換老燈泡的政策不好.給了3點(diǎn)理由: 1)太貴. 2)有污染. 3)光對(duì)眼睛不好。教授反駁:1)雖然貴但是耐用,算總成本還是CFL燈便宜.2)用舊燈泡發(fā)電需要用煤和水銀,會(huì)造成更多污染.3)老的CFL燈有這個(gè)問(wèn)題,但是新的CFL燈已經(jīng)phosphor混合了.所以光不單調(diào)了,對(duì)眼睛好了.
2. 獨(dú)立寫(xiě)作:Do you agree that the government should support the scientific research even there’s no practical use?

