另外，finally还可用在列举事项时，引出最后一个内容，相当于lastly 。Firstly, we should make a plan; secondly, we should carry it out; finally we should make a conclu- sion.
3. by sea, by the sea, in the sea, on the sea, at sea
(1) by sea “走海路，乘船”，用来表示交通方式，同 by ship 同义 。These heavy boxes should be sent by sea.
(2) by the sea “在海边”，相当于 by (at) the seaside 。The children enjoyed themselves by the sea on Children's Day.
(3) in the sea “在海里，在海水中” There are many plants and animals in the sea.
(4) on the sea “在海面上”，“在海岸边” 。I want to live in a town with a beautiful position on the sea.
(5) at sea 在海上;在航海 When he woke up, the ship was at sea.
4. be afraid, be afraid to do sth., be afraid of (doing) sth.
(1) be afraid 意为“担心，害怕”，多用于口语，常用来表示一种歉意，或遗憾，后可接 so 或 not，也可接 that 从句 。I'm afraid (that) 其语意相当于 I'm sorry, but... 。
-- Are we on time? 我们准时吗? -- I'm afraid not. 恐怕不准时 。I'm afraid you'll get caught in the rain.
(2) be afraid to do sth 常表示“由于胆小而不敢做某事” 。She is afraid to be here alone. / He is afraid to jump into the river from the bridge.
(3) be afraid of (doing) sth. 常表示“担心或害怕某事(发生)” 。I was afraid of hurting her feelings.
5. live, living, alive, lively
(1) live adj.
① 活的;活生生的;(只修饰生物;只作前置定语) The laboratory is doing experiments with several live monkeys.
② 实况直播的 (不是录音)It wasn't a recorded show. It was live.
③ 带电的;燃着的;可爆炸的 This is a live wire.
(2) living adj. 活着的，有生命的(作表语或定语) She was, he thought, the best living novelist in England. / The old man is still living. (或alive)
(3) alive adj. ① 活着的;② 有活力的;有生气
作后置定语：Who's the greatest man alive?
作表语：Was the snake alive or dead? / My grandmother is more alive than a lot of young people.
作补语：Let's keep the fish alive.
(4) lively adj. 活泼的;有生气的;活跃的(作表语或定语) The music is bright and lively.
高一英语必修二知识点归纳3
1. can't help doing sth. 禁不住做某事，不由得不做某事
She couldn't hep smiling.
[比较]
(1) can't help but do 不得不……;不能不 When the streets are full of melting snow, you can't help but get your shoes wet.
(2) cannot but 不能不，只能He could not but feel disappointed.
[归纳]
(1) help (sb.) (to) do sth. Help me get him back to bed at once. / By helping them we are helping save ourselves.
(2) help...with sth. 帮助……做某事 In those days he used to help her mother with her gardening.
(3) help oneself / sb. to sth. 给自己 / 别人夹菜 / 拿烟
等;擅自拿用 May I help you to some more vegetables?
(4) help...in sth. 在……方面帮助某人 She offered to help Rose in the housekeeping when I am not here.
(5) help out 帮忙 (做事;克服困难等) I've often helped Bob out when he's been a bit short of money.
2. 含go的短语
① go around 到处走/跑.(疾病)流传，(谣言)传开;go after 追求;go ahead 说吧，请吧，做吧;go away 离开，出去
② go back 走回头路，翻悔改变;go bad 变坏;go boating 去划船
③ go fishing 去钓鱼;go for a walk去 散步
④ go hiking 去徒步旅行;go home 回家
⑤ go in for 喜爱，从事于;go into 进入，加入
⑥ go mad 发疯
⑦ go off 离去，去世;go on 继续，进展，依据;go on doing 继续做;go out 出去，发出去，熄灭，不时兴;go over 研究，检查，搜查
⑧ go shopping 去商店;go skating 去滑冰;go straight along 沿着;go swimming 去游泳
⑨ go through 通过，经受，仔细检查;go to bed _
⑩ go up 上升
[例句] We'll go through the items one by one. 我们要逐条研究 。She has gone back to her old habits. 她又回到了已往的习惯 。Come on Sunday by yourself - we can go over the house together. 星期天你要过来.我们一起检查一下房子 。His speech went on for so long that people began to fall asleep. 他的演讲持续很长时间，结果人们开始想睡 。That expression has gone out. Nobody Uses it today. 那个短语已经过时了，现在没有人在用它 。The young fellow hasn't realized that he has gone wrong. 这个年轻人还没有意识到他已经误入歧途 。Tired of going shopping with his wife，Mr. Liu pretended to have something important to do. 厌烦与妻子一起去购物，刘先生假装有重要的事情要做 。
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