Unit 1 Section A Reading and Thinking-2020-2021学年高二英语同步课堂帮帮帮（人教版2019选择性必修第二册）

Unit 1 Science and scientists 1.1 Reading and Thinking Important Words And Phrases 　once and for all最终地；彻底地 (教材P2)　However，he never lost his desire to destroy cholera once and for all. 然而，他从未放弃彻底消灭霍乱的愿望。 [例1]　He will explain it fully once and for all. 他将把它充分地解释一次，就此了结。 [例2]　The teacher has warned the student once and for all. 那位老师已断然警告那个学生。 [知识拓展] all at once　　 突然；同时 at once 立刻，马上 once and again 一而再，再三 　subscribe vi.认购(股份)；定期订购；定期交纳(会费) (教材P2)　Snow subscribed to the second theory. 斯诺赞同第二种理论。 [例1]　He subscribed for 1，000 shares.他认购一千股。 [例2]　I subscribed to that magazine.It is put out every week. 我订阅了那本杂志，它是周刊。 [知识拓展] subscribe to 　　 同意；赞成；订阅…… subscribe...to... 把……捐赠给……；把……签署在……上 　(教材P2)　Snow suspected that the water pump was to blame. 斯诺怀疑是水泵的问题。 (1)suspect vt.& vi.怀疑；疑有；不信任 n.犯罪嫌疑人；可疑对象 [例1]　I suspect him to know everything about that. 我猜想那件事他全都知道了。 [例2]　She had no reason to suspect that Sylvia had not told the truth. 她没有理由怀疑西尔维娅没说实话。 [知识拓展] suspect sb. of (doing) sth. 怀疑某人