新人教版九年级Unit8._It_must_belong_to_Carla.SectionB(2a-2e).ppt

3. as是常用词,它表示的“原因”是双方已知的事实或显而易见的原因,或者理由不是很重要,含义与since相同,但语气更弱,没有since正式,常译为“由于,鉴于”.从句说明原因,主句说明结果,主从并重.例如： (1)We all like her as she is kind. 我们都喜欢她,因为她善良. (2)As I had a cold, I was absent from school. 因为我感冒了,所以没去上课. 4. for用作连词时,与because相似,但它所表示的原因往往提供上文未交待过的情况.for不表示直接原因,表明附加或推断的理由,因此for被看作等立连词,它所引导的分句只能放在句子后部(或单独成为一个句子),并且前后两个分句间的逻辑关系不一定是因果关系,其间用逗号隔开,且for不可置于句首,for的这一用法常用在书面语中,较正式.例如： (1)The days are short, for it is now December. 白天短了,因为现在已是十二月份. (2)It must have rained, for the ground is wet. (从“地面潮湿”作出“下过雨”的推测,但地湿并不一定是下雨所致, for不可以换为because.) (3)The ground is wet because it has rained. (“下雨”是“地上潮湿”的直接原因.)前后两个分句间有一定的因果关系时(有时很难区分是直接原因,还是推测性原因),for与because可以互换使用.例如： (4)I could not go, for / because I was ill. 我没能去,是因为我病了. (5)He felt no fear, for / because he was a brave boy. 他没有害怕,因为他是个勇敢的男孩 . The key phrases historical places communicate with point out medical purpose prevent illness be used for honor ancestors celebrate a victory a long period of time 历史遗迹 和……交流 指出；提出 医学目的 防止疾病 被用来做…… 纪念祖先 庆祝胜利 一段长时间 1. It e__________ my love for the novel. 2. Yesterday I r_______ his gift, but I didn’t accept it so I returned it to him. 3. Workers lead the l______ around the factory. 4. It is said that the story happened in the m__________. 5. Other people believe the stones have a m_______ purpose. xpresses eceived 根据首字母填空 eaders idsummer edical Ⅱ. 单项选择 1. This kind of medicine can’t______flu. It’s no use. A. take　　　B. prevent　　　C. get　　　D. make 2. The umbrella is used______keeping off the sunshine. A. as B. to C. for D. with 3. We like the place______the weather is always warm. A. where B. that C. what D. which 4. The Great Wall ______many centuries ago. It’s one of the symbols of China. A. builds B. built C. is built D. was built 5. Li Na is ______the pride of Chinese people, ______the pride of Asian p