Unit 1 Past and present词句精讲精练 词汇精讲 1. too manytoo many 意为“太多，大量的”，后跟可数名词复数例如：There are too many books in the room. You can choose any one to read. 房间里有太多的书了，你可以选择任何一本来读The boy has too many questions to ask. 那个男孩有太多的问题要问 【拓展】too much / too many / much too的辨析：词语词形特点too much形容词短语后跟不可数名词，也可作代词短语too many形容词短语后跟可数名词的复数，也可作代词短语much too副词短语后跟形容词或副词例如：Don’t eat too much sweet. It’s bad for your teeth. 不要吃太多的糖，对牙齿不好They bought too many eggs yesterday. 昨天他们买了太多的鸡蛋It’s much too cold outside. You should put on your coat. 外面太冷了，你应该穿上外套。
2. since since作连词，引导时间状语从句，从句用一般过去时，主句常用完成时例如： I have studied English since I came here. 自从我来这里就学习英语 I have known her since I was five years old. 自从我五岁就认识她拓展】since还可以作介词，连接一个过去的时间点或一段时间+ago例如： She has been ill since last weekend. 她自从上周末就病了 She has been in Wuhan since four years ago. 自从四年前她就在武汉3. a lot (1) a lot作副词短语，意为“很，非常”，常修饰动词、感叹词、形容词或副词的比较级等例如：It usually rains a lot at this time of year. 每年的这个时候都经常下雨Thanks a lot for the coffee. 多谢你请我喝咖啡Your room is a lot better than mine. 你的房间比我的大的多。
(2) a lot作名词短语，表示“许多，大量”，在句中作主语、宾语或表语，其后常有动词不定式短语作后置定语例如： Sometimes we have very little snow, but sometimes there’s a lot. 有时我们这里雪很少，有时却很多作主语） There is a lot to see at the party. 聚会上有许多可观赏的东西作主语） He has given her a lot to eat.他给了她许多吃的东西作宾语）4. lonelylonely表示“寂寞的，孤寂的”，带有较强感情色彩，可用作表语或定语；表示“荒凉的，偏僻的”，用来说明地方，多用作定语When his wife died, he was very lonely. 太太死后他非常孤独The old man lived in the lonely mountain village. 那个老人住在荒凉的山村 【拓展】lonely与alone的辨析： lonely作形容词，意为“（人）孤单的，寂寞的”，它更强调一种主观的感觉；alone作形容词和副词，意为“独自的（地），单独的（地）”，它更强调一种客观情况。
alone作形容词，在句中只用作表语例如： Don’t leave me alone. I will feel lonely. 别留下我一个人，我会觉得孤单的5. because of because of 是复合介词，其后接名词、代词、动名词、what 从句等例如：He lost his job because of his age. 由于年龄关系他失去了工作He knew she was crying because of what he had said. 他知道她哭是因为他说的话 【拓展】because是连词，意为“因为”，表示直接原因它所指的原因通常是听话人所不知道的，其语气最强常用来回答why的提问，一般放于主句之后，也可以单独存在例如： I stayed at home because it rained. 因为下雨我待在家里 Because Lingling was ill, she didn’t come to school. 玲玲因病没有上学 — Why is she absent? 她为什么缺席? — Because she is sick. 因为她病了。
6. take place take place意为“发生”例如： Great changes have taken place in my hometown. 我的家长发生了巨大变化拓展】（1）take place与happen的辨析：1）take place一般指非偶然性事件的“发生”，即这种事件的发生一定有某种原因或事先的安排例如：When will the wedding take place? 婚礼什么时候举行？2）happen作“发生、碰巧”解，一般用于偶然或突发性事件例如：What happened to you? 你发生了什么事？(一般不说：What did you happen?)Do you know what will happen in one hundred years? 你知道100年后会发生什么吗？注意：happen 与 take place 通常都没有被动语态 （2）take place还可意为“举行”，相当于hold，但hold有被动语态 The football game will take place tomorrow. 足球比赛明天举行。
The school sports meeting took place last week. 学校上周举行了运动会7. yet (1) yet作副词，意为“到此时，至今，还，尚未”，用于否定句中例如： We haven’t heard from him yet. 我们还没有收到他的来信 I’m not yet sure if we could win. 我还没有把握确定我们是否能赢 (2) 作副词，意为“已经”，用于疑问句中例如： Is everything ready yet? 一切准备就绪了吗？ Has the ship left yet? 轮船已经离开了吗？ (3) 作副词，意为“仍然，还是”，用于肯定句中例如： He’s yet a child. 他还是个孩子 (4) 作连词，意为“然而，可是”例如： You can draw a horse in five minutes, yet you kept me waiting for a year, why? 你能在五分钟之内画好一匹马，然而你却让我等了一年，为什么？ He trained hard all year, yet she didn’t win a prize in the competition. 他全年都艰苦训练，然而在竞赛中却没能获奖。
拓展】 yet和already的辨析： yet用于疑问句或否定句时，放在句末例如： Have you finished yet? 你完成了吗？ He hasn’t done it yet. 他还没有干完呢 already常用于肯定陈述句中，一般位于助动词之后，实义动词之前例如： The train has already left. 火车已经开走了8. look beautiful look在此是系动词，意为“看上去，看起来”，后面接形容词作表语例如： The old man looks very happy. 那个老人看起来很幸福 【拓展】类似look这种用法的词还有：feel(摸起来，感觉)；smell(闻起来)；sound(听起来)；taste(品尝)等例如：The food tastes delicious. 食物尝起来很美味The song sounds nice. 那首歌听起来很好听I feel so happy today. Mum will buy me a new bike. 我今天很高兴，妈妈要为我买辆新自行车词汇精练I. 英汉互译。
1. 结婚_________________ 2. since then_________________3. turn…into…_________________ 4. from time to time _________________5. 因为_________________ 6. 保持联系_________________7. take place_________________ 8. have fun_________________9. want to do sth. _________________ 10. used to do sth. _________________II. 根据句意及首字母或汉语提示完成单词1. My parents both work in the ______________(北方的) part of China.2. There are more than three hundred workers in this ______________(工厂).3. We can’t change the ______________(过去).4. At last the boy ______________(意识到) that it was wrong to sleep in class.5. My parents got m______________ in 1974. 6. I’m afraid I can’t help you at p______________.7. I will have an ______________(采访) tomorrow morning.8. I have studied English s______________ two years ago.9. You can i______________ your spoken English by talking with native speakers.10. I always feel l______________ when I stay at home by myself.III. 根据句意，用所给单词的适当形式填空。
1. There ar。