Unit 4 Understanding ideas 语言点课件-2022-2023学年高中英语外研版（2019）必修第二册

SB2U4 Breaking boundaries My 100 Days With MSF (Language points) ◆lack v. 缺乏 lack sth. 缺乏某物 lack confidence lack for sth. (多用于否定句中) 例：She lives/leads a happy and comfortable life, never lacking for money or friends. ◆lack n. 缺乏;短缺的东西 (a) lack of sth. 缺少... 例：He showed a obvious lack of interest. ◆lacking adj. 不足的；缺乏的;短缺的 be lacking in 在...方面缺乏 例：They are lacking in food. ◆assist v．协助；帮助 assist sb. to do sth.　 帮助某人做某事 assist sb. in/with sth. 帮助某人某事 ◆assistance n. 帮助；协助 come to one's assistance 援助某人 with the assistance/help of... 在……的帮助下 It's exactly one month since the last reported case. It has been two weeks since you came to our school for the exchange program, which has benefited all of us. He said it was ten years since he had graduated from this school. “自从……以来至今已经多久了” It has been/ is＋一段时间＋since+主语+谓语（一般过去时） It was＋一段时间＋since+主语+谓语（过去完成时） [归纳拓展] It was/will be＋一段时间＋before... 过了一段时间才… /要过多久才… It is/was＋时间点＋when... …发生在某个时间 before引导时间状从时的含义： 在...之前;还没来得及...就...;趁着...(还没有);过了...才... 常用句式： It won’t be long before ... 用不了多久就会... (before从句用一般现在时) It wasn’t be long before ... 没过多久就... (before从句用一般过去时) It will be + 一段时间 +before ... 要过一段时间之后才... (before从句用一般现在时) It was +一段时间+before ... 过了一段时间才... (before从句用一般过去时) But it is vital not to take any chances. So. 20 health care workers from almost as many countries, comrades in arms, raise virtual glasses to each other. take chances 心存侥幸；冒险 comrades in arms 战友 virtual glass 虚拟的杯子 Translation 但最重要的是不要掉以轻心。所以，我们这20名来自世界各地的医疗工作者兼战友们，举起虚拟的酒杯互相祝福。 When I saw the tragic scenes on the news, I felt it was my duty as a doctor to go there and offer my help. tragic scenes 悲惨情景 I knew I was putting my life at risk, but I thought, “If I don’t do it, who will