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①Tom has made ______ rapid progress recently, which made his parents very glad. A. a B. an C. the D. / ①D progress为不可数名词，此处也非特指，故只能选D项。 ②The great progress he ______ excited us. A. gained B. achieved C. got D. made ②D make progress 是固定搭配。 once连接时间状语从句，常可以省略主谓的一部分，省略了句子的主谓部分相当于Once she went out in the street，… Once out in the street, she walked quickly towards her usual bus stop. 她一走到街上，就匆匆地向往常乘车的站台走去。 ______ having confidence, you will be successful in the interview. A. Before B. Once C. Until D. Though B 一旦你有了信心，你在面试中就会成功的。once having confidence＝once you have confidence。 * * Module 3 Unit 1 The world of our senses（1） 1、 observe vt. 观察；注意到，观察到；遵守； 纪念，庆祝 ◆We observed that it had turned cloudy. 我们注意到天已转阴。 ◆We should observe the traffic rules strictly. 我们应该严格遵守交通规则。 observe 观察；从不同的角度长时间地看并研究。 look 看；因想看而投注目光，不管结果如何。 watch 看；观看；特别留意，感兴趣地看着运动着的东西。 see 看到，看见；强调看的结果，有意或无意地看到，无进行时。 notice 看到，注意到，觉察到；偶尔看到细小但可能是重要的事情。 ①They ______ the train until it disappeared in the distance. | 
