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1、B6 unit 5 The power of nature language points 1. Have you ever considered how weak humans are compared with a volcano, hurricane or earthquake ? 你是否想过, 和火山, 飓风或地震 相比人类是何等脆弱。 consider 思考, 主要用于： consider +名词/-ing形式 He is considering studying abroad. 他正在考虑出国留学。 consider + wh-: We considered how we shou
2、ld help them. 我们仔细考虑应该如何帮助他们 。 consider + 副词： Consider carefully before you decide. 要慎重考虑后再作决定。 2. Do you enjoy taking risks? risk n. 风险，危险： He was taking a risk by overtaking on a bend. 他在转弯处超车是在冒风险。 The house is a fire risk. 这房子有起火的危险。 短语联想： at risk 在危险中: You are at risk if you dont wear a seat be
3、lt. 不系安全带真的会有危 险。 at the risk of 冒危险 At the risk of seeming rude, I must refused your request, Im afraid. 尽管似乎无理，恐怕我还是 必须拒绝你的要求。 3appoint vt. 约定；指定(时间、 地点)；任命；委任 Wen Jiabao has recently been appointed head of the National Energy Commission. 温家宝最近被任命为国家能源委员会 主任。 A lawyer was appointed to represent th
4、e child. 一位律师被指定为这个孩子的代理律 师。 归纳拓展 (1)appoint sb. as/to be. 任命某人为 appoint sb. to do sth. 委派某人做某事 appoint sth.(for sth.) (为某事)确定(日期、 场所) (2)appointment n. 任命；约会 make an appointment with sb. 与某人约 会 keep/break an appointment 守/违约 I have made an appointment with Doctor Smith. 我已和史密斯医生约好了。 运用提升 We must_a
5、new teacher at once to the mountain school. Aappreciate B appoint Cappeal Dapproach 答案：B 句意：我们必须马上委 派一名新教师到那所山村学校去。 appreciate“感激”；appoint“任命 ，委派”；appeal“呼吁，吸引”； approach“接近，靠近”。 3. Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will fl
6、ow next and how fast. 考点 Having collected and evaluated是 动词 -ing形式的完成式, 说明它表示的动 作在主要谓语表示的动作之前发生。 考例2 in the queue for half an hour, Tom suddenly realized that he had left his wallet at home. (北京2004) A. To wait B. Have waited C. Having waited D. To have waited 此处强调已等了半个小时，然后才意识到 没带钱包，故用动词-ing形式的完成式。
7、 c 考例1 The storm left, _ a lot of damage to this area. (2005全国 卷I) A. caused B. to have caused C. to cause D. having caused 点拨 “暴风雨破坏”这个动作发生在left之前 ，故用动词-ing形式的完成式。 D 4.Many houses have been covered with lava or burned to the ground. 许多房屋被熔岩覆盖或烧毁。 burn to the ground 指楼等被烧 毁 He has no place to live i
8、n because his house has been burnt to the ground. 他无处栖身因为他的房子被烧掉 了。 短语联想： burn away 烧掉 The wood had burnt away to nothing. 木头已烧成灰烬。 burn down (建筑物) 烧毁 ： The cinema burnt down last year. 电影院去年被烧毁了。 The school was burnt down by vandals. 学校被人纵火烧毁了。 burn off 烧掉 He was badly injured in the accident, and
9、his hair was burnt off. 他在事故中严重受伤，头发也被 烧掉了。 burn out 烧坏 The engine had burnt out. 引擎给烧坏了。 burn up 烧毁，燃得更亮/旺 The rocket burnt up when it reentered the earths atmosphere. 火箭重入地球大气层时烧毁。 He put more wood in the fire to make it burn up. 他往火上加木材想让他烧的更 旺。 8I was about to go back to sleep when suddenly my b
10、edroom became as bright as day. 我刚要再睡，突然我的卧室亮如白昼。 be about to do.when. “正要这时 ”。 I was about to leave when it began to rain. 我正准备离开，这时突然下雨了。 We were about to have breakfast when he came this morning. 今天早上我们正要吃饭，这时他来了。 点拨：be about to do sth. 不与具体的表示时 间的状语连用，可以与when构成固定句式。 归纳拓展 (1)be to do表示商定、安排或准备要做的
11、事， 还表示可能性、必要、责任、义务等。 (2)be going to do 表示将要发生或计划、打 算最近要进行的动作。 (3)be going.when., be on the point of doing.when. 都可表示“正要这时” 。 The test is to see whether youve mastered the language points. 这个测验是要看你是否掌握了知识点。 Were going to visit an industrial exhibition. 我们要去参观一个工业展览。 运用提升 We_there when it_to rain. Awo
12、uld get; began Bwere getting; would begin Cwere about to get; began Dhad got; had begun 答案：C 句意：我们正要去那里这时开 始下雨了。be about to do.when.“正 要这时”。when后从句中谓语 动词要用一般过去时。 5. Having earlier collected special clothes from the observatory, we put them on before we went any closer. 考点 earlier是副词early的比较 级，意为“早些”
13、。 考例 The new group of students is better-behaved than the other group who stayed here _. (北京2007) early B. earlier C. earliest D. the earliest B 2suit n. 一套外衣；套装 vt. 适合； 使适宜 It suits me to start work at a later time. 对我来说最好晚一点再开始工作。 He can suit his conversation to whoever he is with. 无论跟谁说话，他都能说到一块儿
14、。 This diet is suited to anyone who wants to lose weight fast. 这一食谱适合每一个希望迅速减肥的人 。 (1)suit sth. to sth. 使某物适合于另一事 物 (2)be suited for/to. 适合 (3)be suitable for sb./sth. 适合于某人/ 某物 be suitable to do sth. 适合做某事 辨析：suit, match, fit (1)suit多指合乎需要、口味、性格、条件 、地位、场合等。 (2)match多指色调、形状、性质等方面的 搭配。 (3)fit多指大小、形状的
15、合适。 运用提升 (1)How about eight oclock outside the cinema? That_me fine. Afits Bmeets Csatisfies Dsuits 答案：D 考查动词辨析。suit sb. fine表示“适合某人”，符合题意。fit 指“大小、形状合适”；meet“遇见， 会面”；satisfy“使满意”。 6. We slowly made our way to the edge of the crater. 我们慢慢向走火山口的边缘 。 make ones way （向某地）走（去） She hesitated, but made her
16、 way forward. 她犹豫了一下，但向前走去。 She hastily left the room, and made her way to her bed. 她迅速离开房间，朝她床边走去 。 短语比较： make ones way 还表示“有出息 ” If you want to make your way in the world, you must learn to work hard while you are still young. 你若想要有出息，趁年轻的时候 要学会发奋。 make way (for) 让路，让位 All the traffic has to make way for a fire engine. 所有的车辆都得给救火车让道 。 I shall make way for a
