/ 让教学更有效 高效备考 | 英语学科 Unit 2 I’ll help to clean up the city parks. 知识精讲 一、重点单词讲解 1. volunteer v. 义务做；自愿做 n. 志愿者 教材原句：Volunteer Today! (p9-1a) 【直击考点】 义务做，自愿做（某事）volunteer to do sth. She volunteered to teach in the village school. n. 志愿者 2. lonely adj.孤独的；寂寞的 教材原句：Yeah, a lot of old people are lonely. (p10-2d) 【直击考点】 lonely（感到）孤独寂寞的，带有很强的感彩，可做表语或定语。 The lonely boy is not lonely now. 对比alone alone adv.独自;单独，无感彩，强调客观情况 The musician enjoyed living alone and writing songs himself. 3. owner n. 物主；主人 教材原句：I get such a strong feeling of satisfaction when I see the animals get better and the look of joy on their owner’s faces. (p11-3a) 【直击考点】 owner n. 物主；主人 We finally found the owner of the little dog. own v. 拥有 Though he is young, he owns a lot of money. own adj. 自己的 Everyone has his own interests and hobbies. 4. journey n. （由指长途）旅行；行程 教材原句：The kids are sitting in the library, but you can see in their eyes that they are going on a different journey with each new book. (p11-3a) 【直击考点】 journey n. （由指长途）旅行；行程 Life is a long journey. trip n. 多指短途旅行； We have a school trip every year. travel v. travel around the world →n. traveler旅行者 If you want to travel around the world, you should have a lot of money first. 5. raise v. 募集；征集 教材原句：For example, we can make plans to visit sick chicken in the hospital or raise money for homeless people. (p12-4b) 【直击考点】 1) raise money for…为……筹钱 The volunteers raise money for the poor every week. raise还有”提升、举起”的意思 The little boy raised his hand to wave. 与rise区分 raise和rise都有“上升”的意思： raise是及物动词，后面必须有宾语，就是“某人把某物举起来”。 rise是不及物动词，后面不能加宾语，也就是说“某人、某物自己升起来”。 比如： I raised the box above my head. Smoke rose into the sky. 6. imagine v. 想象；设想 教材原句：Or imagine you can’t walk or use your hands easily. (p14-2b) 【直击考点】 imagine doing sth. I cannot imagine living in a place without water. imagine + 从句 Can you imagine why he wants to be alone by himself imagine sb. + n/ to be... I once imagined him a thin tall man. The boy imagined himself (to be)a pilot. difficulty n. 困难；难题 教材原句：Most people would never think about this, but many people have these difficulties. (p14-2b) 【直击考点】 表示抽象意义的“困难”时为不可数名词；表示具体的“难题、难事”时为可数； The book is full of difficulties. He tried to explain to me the difficulty of learning to cook. 固搭：have difficulty (in) doing sth.= have trouble (in) doing sth. Call me whenever you have difficulty learning math. adj. difficult My friend doesn’t like science because it is so difficult. excited adj. 激动的；兴奋的 教材原句：I love animals and I was excited about the idea of having a dog. (p14-2b) 【直击考点】 excited adj. 激动的；兴奋的 (主语为人) be excited about... Tim w ... ...
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