高二英语教案：《Saving the earth总复习》教学设计(2)

　　【注意】next不能单独用在decade或century之前。如：(×) Something will happen next decade.

　　(√) Something will happen in／during the next decade. 下个十年将会发生某些事情。

　　【辨析】next；the coming: next指位置、时间上紧挨着和past相对，常用next替代。  ① The next house to ours is a mile away. 离我们家最近的下一座房子在一英里之外。② Where will you be during the next／coming few weeks?下几个星期你们将在什么地方?

　　4. Coal is a valuable resource that can be used to produce energy, but it can also cause serious pollution. 煤是一种用来生产能量的珍贵资源，但是，它也能引起严重的污染。(p. 66 Speaking 'Situation')

　　1) valuable意为"贵重的、重要的；有益的；有作用的"，常与介词for或to连用。如：① They gave us valuable practice in helping the eyes，brains and muscles to work together. 他们在使眼睛、头脑和肌肉协同动作方面提供宝贵的锻炼机会。② This tool is valuable for doing electrical repairs. 这工具对修理电器很有用。 ③ I'm sure my information is valuable. 我确信我的消息很有价值。

　　【链接】valuable相当于be of value。如：This book is very valuable to me in my studies. = This book is of great value to me in my studies. 这本书对我的学习很有价值。

　　【辨析】valuable；priceless；invaluable；precious

　　valuable指任何值钱的或可以带来巨额利润的、非常有用的或受人珍视的东西。/ priceless意为"无价的，贵重的"，用于加强语气、加深程度等情况。/ invaluable意为"无法估价的"，不用于谈金钱，而指品质。/ precious指任何昂贵的、贵重的、珍贵的东西，尤其适用于失掉后无法补偿的东西。① This ancient gold coin isn't just valuable，it's priceless. 这枚古金币不只是珍品，而且是无价之宝。 ② His advice has been invaluable to the success of the project. 他的意见对于这项工程的成功是无可估量的。③ To me, our friendship is a very precious thing. 对我来说，我们之间的友谊是非常珍贵的。

　　【注意】表示东西价值很小或没有价值时，用worthless或valueless。如：It looked like gold, but in fact it was worthless／valueless. 这看起来像是金子，其实毫无价值。

　　2) 在定语从句that can be used to produce energy中，动词use被用作被动时态，be used to do sth. 意为"被用来做......"。如：① This old box is used t0 keep books．这个旧箱子用来装书。② Every means has been used to prevent pollution. 我们已利用各种手段来防止污染。③ Coal can be used to keep warm. 煤可用来取暖。

　　【链接】(1) used to do sth. 指过去常做某事，而现在不再如此，强调今昔对比。

　　be                  sth.

　　(2)    get        used to

　　become              doing sth.

　　习惯于做某事，适用于各种时态。

　　(3)  be used for sb. 为某人而用/ doing sth. 被用来做某事；as／for sth. 被当成...用 ① I don't smoke these days, but I used to. 我现在不抽烟，但我以前是抽的。 ② You will soon get used to our way of life. 你将很快习惯于我们的生活方式。 ③ The girl is being used as a servant in the house. 这女孩在家里被做佣人使用着。④ What do you use this tool for? 这个工具用来做什么用的?

　　5. You will attend the meeting and discuss the issue.你将参加会议并讨论问题。(p. 66 Speaking 'Situation')

　　1) attend可用作及物动词或不及物动词，此处意为"参加；出席；到场"，可用于被动语态。如：① She was sick so she didn't attend her classes. 她生病了，所以没去上学。② The football match was attended by thousands of football fans. 数以千计的球迷观看了这场足球赛。③ Please let me know if you are unable to attend. 如果你不能出席，请通知我们。

　　【拓展】attend 还可意为"照料" (常和on／upon连用) 和"接待" (常和to连用)。如: ① She attended (on) the wounded soldier day and night. 她日夜护理着负伤的战士。② Are you being attended to? 有人招待你吗? (店员对客人的招呼语)

　　【辨析】attend，join(in)；take part in