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1、Period Developing ideas课前自学导引与大自然的接触作为一名自然摄影师，我必须勇敢地面对各种恶劣环境。但是，尽管刮风下雨，我仍然喜欢在野外工作。这份工作最好的一点是你可以在自然环境中观察动物。我最喜欢拍照的地方是黄石国家公园。作为世界上第一个国家公园，黄石公园以其野生动物的多样性而闻名，但它可能最以熊而闻名。这些巨大而强壮的动物可以活三十年。尽管体重高达300公斤，但它们可以以每小时大约64公里的速度奔跑，同时它们也是游泳高手。去年春天在黄石公园，我沿着一条小路穿过一片黑暗的森林。当我终于走出树林时，景色令人惊叹。一只鹰飞过白雪皑皑的群山，山体倒映在山下平静的湖面上。当我专
2、注于拍摄这一令人惊叹的景色时，我突然有一种感觉，有东西正在看我。慢慢地，仍然举着相机在眼边，我转过身来呆住了。离我只有几米远的地方有一只熊。水从它浓密的棕色头发上落下，那只熊回头盯着我。时间静止不动，熊和我都在等待谁先行动。我的腿开始发抖。不知怎么地，我强迫我的手指按下快门。一秒钟后，熊转身跑回森林。当我从震惊中回过神来时，我看了看我的相机。我最可怕但最神奇的经历现在永远被拍摄在一张照片中。我时不时地看看这张照片，作为对所有动物表示尊敬的提醒。毕竟我们是它们世界的访客。课堂合作探究1variety n. C种类，品种 U变化，多样性(P56)归纳拓展(1)a variety ofvarieti
3、es of 各种各样的(2)vary v. (使)变化，不同vary from . to . 从到不同vary with . 随而变化(3)various adj. 各种各样的(4)variation n. 变化A variety of products are sold at a supermarket.在超市，各种各样的商品均有出售。Traditions and customs vary from place to place.传统和风俗习惯因地而异。Prices vary with the quality.价格随质量不同而变化。Everyone arrived late at the p
4、arty for various reasons.由于种种原因，每个人到达聚会的时间都很晚。单句语法填空There are (variety) kinds of wild animals in this area.Wedding traditions and customs vary one country another. (variety) of books have been published.答案：variousfrom; toVarieties2concentrate v. 集中(注意力、思想等)(P57)归纳拓展(1)concentrate . on/upon . 把专注于(2)
5、concentrate on/upon . 专注于(3)concentration n. 专心，集中We must concentrate our attention on protecting the water resources.我们必须把注意力集中在保护水资源上。How can I concentrate on my study with so much noise going on?现在这么吵，我怎么能安心学习呢？单句语法填空Its the sort of work that calls for a high level of (concentrate)I cant concentr
6、ate my work with several children shouting loudly outside.With his attention (concentrate)on his book. He didnt notice someone entering his room.答案：concentrationon/uponconcentratedafter all毕竟，归根结底，终究(P57)归纳拓展in all 总共above all 尤其是，最重要的是(强调重要性)all the time 始终，一直all of a suddensuddenly 突然，冷不防地All of a
7、 sudden the lights went out.突然，灯都灭了。After all, you are a student now, and you should study hard. 毕竟，你现在是个学生，你应该努力学习。She spent twenty yuan in all.她总共花了20元。单句写作这封信一直揣在我口袋里。The letter has been in my pocket . 要想成为伟人，你必须聪明、自信，最重要的是要诚实。To be great, you must be smart, confident, and, ， honest.她总共换了8次演出服。 ，
8、 she has eight costume changes. 这也不能怪他，毕竟他头一回做嘛！Hes not to blame. ， it was the first time hed done it. 答案：all the timeabove allIn allAfter all.单词拼写1The FBI keeps (档案) on former White House employees. 答案：files2Cost was a key (要素) in our decision.答案：element3She hasnt got over the (震惊) of seeing him ag
9、ain.答案：shock4Lets think of a situation where this (习语) can be used.答案：idiom5He is universally recognized as an a on Russian affairs.答案：authority6If the temperature drops below 0 ， water f .答案：freezes7I am deeply attracted by the photographs taken by the famous p .答案：photographer8Music even helps pat
10、ients feel better and helps them r faster and better.答案：recover.单句语法填空1I tried shaking him but there was no (react). 答案：reaction2You should know its impolite to stare others.答案：at3All these rules must (observe) by all the students.答案：be observed4This is the biggest problem that I (encounter) in my j
11、ob.答案：have encountered5Its (freeze) cold outside so you must put on more clothes.答案：freezing6He had to overcome (variety) of difficulties while traveling.答案：varieties7We decided to brave elements and finish our task as planned.答案：the8This medicine is quite beneficial to your (recover) after the oper
12、ation, providing you take it as told.答案：recovery.选词填空a variety of； concentrate on； after all； be famous for； at a speed of； brave the elements； do good to； from time to time1.It is important for children to have their teeth checked .答案：from time to time2It is hard for a child to one thing for a long
13、 time.答案：concentrate on3Weifang is home to kites, where you can buy kites.答案：a variety of4The restaurant its good service which attracts a lot of customers.答案：is famous for5Journalists (记者) always to report the news.答案：brave the elements6Humour can always keep you in high spirits, which will both yo
14、ur mental and physical health.答案：do good to7Forgive him for what he has done and give him a chance to correct his mistake. ， he is only a child. 答案：After all8Chinas newgeneration highspeed train, the Fuxing, is now one of the fastest trains in the world, which can travel 350 km/h.答案：at a speed of.单句写作1我上次见她大约是16年前了。(the last time) was about sixteen
