Unit2 Wildlife Protection Section 1 重点词汇短语句型
1.end up用法详解
(1)end up(以......)结束,后接v-ing形式或者介词短语。
  end up in prison/failure 最终会坐牢/失败
  end up with ......以......而结束......
  I ended up telling him everything although I tried not to.
虽然我试图不说,但是结果我还是把一切都告诉他了。
The students ended up their class meeting with a chorus singing.学生们以合唱结束了班会。
(2)end up as sb./sth.最终成为/变得,as 表示“作为,当”含义。
  In spite of the people’s opinions,she ended up as the winner.尽管众说纷纭,最后她还是成了胜利者。
(3)end up+形容词,表示“最终处于......的状态”。
  If he carries on driving like that,he’ll end up dead.如果他继续那样开车,总有一天会把命丢掉。
(4)end up nowhere 一事无成
  If you don't work hard,you’ll end up nowhere.如果不努力工作,你将一事无成。
归纳拓展
  at the end of the day(俚语)最终,到头来      at an end 结束
  at the end of在......的末端/结束时              in the end 最后;最终
  make(both)ends meet使收支相抵;勉强维持生计  on end 竖着;直立着;连续地
  put an end to 结束......            come to an end 结束
2.die out用法详解
(1)灭绝;绝种
  How did the dinosaurs die out?恐龙是如何灭绝的?
(2)(习俗等)逐渐消失
  Many old customs are gradually dying out.许多习俗都在逐渐消失。
(3)(火)逐渐熄灭;(风等)逐渐停止
  Once the fire has died out,the rescue team will move in.一旦大火熄灭,救援队就会马上进入。
归纳拓展  die away(声音等)逐渐减弱;逐渐模糊;逐渐消失
  die down(火,兴奋等)逐渐变弱;逐渐平息    die off 相继死去;先后死去
  die for 为......而死        be dying to do sth. 渴望做某事
3. alaming用法详解
  alarming adj.使人惊恐的;令人惊慌的;引起恐慌的
  at an alarming rate/speed 以惊人的速度   
  The rain forests are disappearing at an alarming rate.雨林正在以惊人的速度消失。
  This idea seems to become less alarming.这个想法似乎就变得不那么可怕了。
词语积累programme用法
(1)alarm n.惊恐;惊慌;警报;闹钟  vt.使惊恐;使害怕    in alarm 惊恐地
  sound the alarm 发出警报    alarm bells 警铃
(2)alarmed adj.惊恐的,惊慌的    be alarmed at/by 对......感到惊恐
  “What have you done?”Ellie cried in alarm.“你都干了些什么?”艾莉惊恐地喊道。
  The alarm went off at 7 o’clock.闹钟在7点钟响了。
  We were much alarmed by the fire in the forest.森林失火使我们大为惊慌。
4. rate用法详解
(1)n.【C】速度;进度,常与介词at搭配,相当于speed。
  Most people walk at an average rate of 5 kilmeters an hour.大多数人步行的平均速度为每小时5千米。
(2)n.【C】比率;率
  birth/death rate 出生率/死亡率      rates of exchange/interest 汇率/利率
  There has been a gradual increase in the birth rate.出生率在逐渐增长。
(3)n.【C】价格;费用
  What is the advertising rate in your newspaper?你们报纸的广告价格式多少?
(4)vt.评估;评价;估价
  as把......看作      认为/把......算作......之一
  The show was rated as a success by critics and audiences.评论家和观众都认为这次演出式成功的。
归纳拓展  at any rate  无论如何,不管怎样
5. mass用法详解
(1)n.【C】团;块;堆
  a mass of 一团/块/堆的......          masses of 成团/块/堆的......;大量的
  The sky was full of dark masses of clouds.天空中乌云密布。
  There were masses of people in the shops yesterday.昨天商店里人如潮涌。
(2)n.众;平民百姓,常用复数形式。
  The TV programme has brought science to the masses.电视节目已经把科学带给了平民百姓。
(3)n.【U】(technical 术语)质量
  It is hard for scientists to calculate the masss of a planet.科学家计算一个行星的质量是很难的。
特别注意  masses of 做主语时,谓语动词的单复数由of后面名词的数决定。
  There is masses of housework waiting for her.有许多家务等着她。
  There are masses of students waiting outside the school.学校外有很多学生在等着。
6. aware用法详解
(1)adj.知道;意识到;明白;发觉,其后常与of 搭配。
  be aware of 明白/意识到    make sb. aware of 使某人明白/意识到......
  As far as I’据我所知......
  He was well aware of the problem.他很清楚这个问题。
  Everybody should be made aware of the risks involved.应该让人人都知道其中的风险。
  I was aware that she was trembling.我察觉到她在发抖。
(2)adj.对......有兴趣的;有......意识的,常与副词连用。
  Young people are very environmentally aware.年轻人的环保意识很强。
词语积累
(1)awareness n. 意识      raise the awareness of sth.  加强对某事物的意识
(2)unaware adj.不知道的;没意识到的;未察觉的
  be unaware of 不知道......
7. endangered用法详解
  endangered adj.濒危的 
  These endangered gentle giants are highly social animals.
这些濒临灭绝的,性情温顺的大型动物属于高度居的动物。
词语积累
(1)endanger vt.使遭危险;危机;危害,后面接名词或代词。
  Development of the area would endanger wildlife.开发这一地区将会危及野生动物。
(2)danger n.危险
  in danger(of)在危险中,有......的危险      out of danger 脱离危险
  be a danger to 对......是危害,威胁
(3)dangerous adj.危险的
8. average用法详解
(1)n.平均数,后常接介词of。
  an average of ......的平均数
  Parents spend an average of 220 dollars a year on toys for their children.
  父母为了孩子买玩具的花费平均每年为220美元。
(2)n.平均水平;基本上;大体上
  on average 平均;基本上;大体上
  above/below average 高于/低于平均水平
  About 400 people a year die of this disease on average.平均每年有大约400人死于这种疾病。
  These exam results are above average.这些考试成绩高于平均水平。
(3)adj. 平均的;普通的,一般的,中等的
  The average age of the boys in this class is fifteen.本班男生的平均年龄是15岁。

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