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    It is also possible that some of them may fall behind in their studies. fall behind 跟不上.落后 One marcher fell behind the others. 有个行进者落在了别人后面. 相关归纳: (1)fall in love with-坠入情网.爱上- She fell in love with Tom the first time she met him. 她第一次见到汤姆就爱上了他. (2)fall into debt/trouble 陷入债务/麻烦 When her business failed, she fell into debt. 生意失败后.她债务缠身. (3)fall back 退.退让 The crowd fell back to let the doctor through. 人群向后退.让医生走过去. (4)fall off-跌落 He fell off the ladder. 他从梯子上跌落下来. ◆概念提示 重点/热点1:Most exchange students say that they feel as if they were truly part of their host families and that they will always stay in touch. as if相当于as though.意为“好像,仿佛 .引导从句.常用虚拟语气. He talks as if he knew all about it. 他说话的口气好像他都已经知道了. He looks as if he had seen a ghost. 他看起来好像看见了鬼似的. 相关归纳:: (1) as if 从句也可以用虚拟语气.表示事情真的要发生.例如: There are black clouds in the sky, it looks as if it is going rain. 天空中有许多乌云.看起来要下雨了. (2) as if后除接从句外.还可以接非谓语动词to do.doing形式.相当于从句的省略.例如: He opened lips as if to say something. 他张开嘴好像要说什么. He stared at me as if meeting me for the first time. 他盯着我好像第一次见到我似的. 易混易错点1: anxious, eager eager adj.“渴望的,热切的 .着重指渴望什么或做什么的热情及迫切的心情.即“成功的期望或进取的热情 .可接for和to do. anxious adj.“焦急的,发愁的,牵挂的 .含有未知结果如何.有些为之担心的意味.也可接for和to do-. The student was anxious to finish the final examination. 那个学生急于要结束期末考试. ⑵I am anxious to leave. 我急于离开. ⑶He was anxious to please his guests. 他急于讨好客人. ⑷I am very anxious about my son’s health. 我非常担心我儿子的健康. ⑸I was anxious about the children when they didn’t come home from school. 孩子们放学后没回家.我很担心. ⊕讲题组 ◆课内题例与课后题: 课内题例 【查看更多】

     

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    ____ exchange students can learn many useful things, it is also possible that some of them may fall behind in their studies.t

       A. Since          B. While           C. If           D. When

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