Unit 2 单元知识回扣-(配套教参)【精讲精练】2025-2026学年高中英语选择性必修第四册(外研版)

该高中英语知识清单系统梳理了单元核心词汇、拓展词汇、重点短语及重点句型的知识体系。从核心单词的基础认知出发，延伸至拓展词汇的词性转换与反义关系，再到重点短语的固定搭配，最终掌握重点句型的结构与应用，形成从词汇积累到句法运用的学习支架。 知识链路按照核心词汇积累、拓展词汇深化、短语搭配巩固到句型结构运用的顺序清晰呈现，注重词汇的词性转换与反义关联，强化句型的语境应用。通过系统梳理与逻辑整合，助力学生夯实语言基础，提升语言运用能力与思维逻辑性，培养科学的词汇句法学习方法。

Unit 2　单元知识回扣 [对应学生用书P53] Ⅰ.核心单词 1．At this stage we can't really anticipate(预料) what will happen to us. 2．Malnutrition in the region is widespread(普遍的)—affecting up to 78 percent of children under five years old. 3．This phrase(短语) serves as a connecting link between the preceding and the following. 4．The entrance fee(费用) is six pounds，two pounds for the unwaged. Ⅱ.拓展词汇 1．pessimistic adj.悲观的，悲观主义的→[反义词]optimistic adj.乐观的，乐观主义的→pessimist n.悲观主义者→pessimism n.悲观主义 2．possess v.拥有；具备→possession n.财产，财物 3．normal adj.正常的→[反义词] abnormal adj.不正常的，反常的 4．recognize v.承认；认出，识别→recognition n.承认，认可→recognizable adj.容易认出的 5．cooperate v.合作，协作→cooperation n.合作；协作 6．pure adj.纯净的，洁净的→purely adv.纯粹地；仅仅；只不过→purity n.纯洁→purify v.使(某物)洁净；净化 7．luxury n.奢华，奢侈→luxurious adj.奢侈的，豪华的 Ⅲ.重点短语 1．be reunited with 与……重聚 2．a pleasant surprise一个意外的惊喜 3．point of view 观点 4．get distracted by分心，转移(注意力) 5．lose touch with 与……失去联系 6．live life to the full过得很充实 7．rush into 冲进某地 8．go up to 走向…… 9．burst out laughing 突然大笑起来 10．be crammed with 塞满；充满 Ⅳ.重点句型 1．有几个旅游目的地可供我们选择。今年夏天去哪里由你决定。 There are several travel destinations we can choose from.It's up to you to decide where we go this summer. 2．as if引导表语从句 她看起来好像什么事都没发生过似的。 She looked as if nothing had happened to her． 3．现在分词(短语)作结果状语 在以前几十年中，医疗技术的进步使得人们的寿命比以前的人的更长了。 In the last decades，medical technology has advanced much，making it possible for people to live longer than those in the past． 4．every time引导时间状语从句 我第一次吃中餐就爱上了它独特的味道和花样。 The first time I ate Chinese food，I fell in love with its unique flavors and patterns. 5．“no＋比较级＋than”意为“和……一样不……” 恐怕今天的天气比昨天好不了多少。 I'm afraid the weather today is no better than yesterday. 学科网（北京）股份有限公司 $