每年的4月22日为地球日，这是一个提醒我们去尊重、善待地球的特殊日子。让我们一起看一看我们应该如何去保护地球。We live and depend on our planet, Earth. Often, we dont treat Earth with the respect thatwe should. Earth Day is a special day to remind us of how important our planet is. Earth Day is celebrated around the world on April 22. On Earth Day, people are reminded to enjoy Earths beauty and to preserve it for future generations. The first Earth Day took place in the United States in 1970，and it became an international event in 1990.On Earth Day, people celebrate Earth by going outside to enjoy nature. Some people volunteer to do a neighborhood cleanup. Other people celebrate Earth Day by doing something nice for nature, such as building a bird house, or teaching children about conservation and recycling.Here are some environmentally friendly tips：Recycle paper, plastic and aluminum.Reuse bags when you go shopping.Save items that you can use again, such as boxes, containers, and water bottles.Donate old toys and clothes.Reduce wastebuy only what you need, and order less food at restaurants.Turn off lights when you leave a room.Unplug appliances when you arent using them.Wear extra clothes instead of turning on the heat.Turn off the tap while brushing your teeth.Plant a tree.Plant a garden and grow your own vegetables.When youre writing or drawing, use both sides of the paper.Put your rubbish in the bin.Teach your family and friends how to protect the environment.【注】preserve v. 保护，保留recycle v. 循环，再利用donate v. 捐献unplug v. 拔下appliance n. 家用电器【立德树人】地球是我们人类唯一的家园 (one and only home)，让我们从身边的小事做起，爱护周围环境，成为一个心中有山川、心中有大爱的人。Period Starting out & Understanding ideas课前自学导引鲨鱼：是危险的还是被置于危险的？我们看到一个女人夜晚在漆黑的海中游泳。突然，她被拖到水下。她浮出水面，恐惧地哭泣，然后永远消失了。这是1975年电影大白鲨的开始场景，展示了鲨鱼袭击。它讲述了一条大白鲨袭击并杀死游泳者的故事。大白鲨获得了巨大的成功，吸引了大量观众并赢得了许多奖项。它强化了人们长期以来认为大白鲨是一种危险动物的观念。人们总是害怕鲨鱼，但大白鲨使情况变得更糟。它使人们害怕鲨鱼，特别是大白鲨。许多看过这部电影的人开始相信鲨鱼是吃人的坏动物。有些人因为害怕电影里这个可怕的生物而停止在海里游泳。其他人开始捕捞鲨鱼，尽可能多地捕杀。那时，没有人关心鲨鱼是否被杀，或者有多少被杀。人们只想杀了它们。1975年后，大鲨鱼的数量在美国各地迅速下降，很快在全世界范围内下降。这不仅是因为对鲨鱼的害怕，而且是因为割鲨鱼鳍。割鲨鱼鳍是一种捕捉鲨鱼然后割掉鱼鳍的捕鱼方式。鲨鱼被扔回海里，在那里它们慢慢地、痛苦地死去。鱼鳍被用在鱼翅汤里。割鲨鱼鳍每年杀死数百万条鲨鱼。割鲨鱼鳍会对彼得本奇利产生意想不到的影响，电影大白鲨就是根据他写的那本书改编的。1980年，本奇利正在潜水，这时他偶然看到一个可怕的景象。这是一个捕鱼者割鱼鳍的地方，海底布满了死去的鲨鱼。本奇利看到鲨鱼被杀，这给他内心带来了深刻的改变。与之前的观点相反，他开始把人看作是对鲨鱼的一种危险。从那天起，他为保护鲨鱼而奋斗。他承认他的书错怪了鲨鱼的行为。“鲨鱼不会以人类为目标，”他说。专家们已经证明，鲨鱼并不把人看作食物，他们错误地攻击了我们。每年只有大约6人被鲨鱼杀死。幸运的是，不是每个看过电影大白鲨的人都害怕鲨鱼，有些人变得对了解鲨鱼感兴趣。今天，随着我们对鲨鱼的了解越来越多，越来越多的人想保护它们免遭灭绝。课堂合作探究1scare v. 使(某人)惊恐，吓唬(P62)归纳拓展(1)scare sb. into doing sth. 恐吓某人做某事scare sb. away/off 把某人吓跑(2)scared adj. 惊恐的，害怕的be scared of (doing) sth. 害怕；对感到惊恐be scared to do sth. 害怕做某事be scared to death 吓死；吓得要死(3)scary adj. 恐怖的，吓人的，引起恐慌的She tries to scare the child into_behaving well.她试图吓唬那孩子让其守规矩。To scare the birds away,_I made a scarecrow man.为了吓跑鸟儿，我做了一个稻草人。The little girl is_scared_of going across the bridge because she is_scared_to fall into the river.小女孩不敢过桥，因为她害怕掉进河里。I was_scared_to_death when I saw someone walking slowly towards me in the dark.当我看到一个人在黑暗中慢慢朝我走来时，我怕得要死。(1)单句语法填空He was scared _ (go) home when he did wrong.The girl was _ when she saw the _ snake. (scare)I am scared _ dogs.答案：to goscared; scaryof(2)单句写作他们用恐吓的手段逼他在文件上签字。They _ the paper.突然的响声把这只狗吓跑了。The sudden noise _.答案：scared him into signingscared the dog away/off2target v. 把作为目标；把对准(某群体)n. 靶，靶子；目标，指标；(攻击的)目标，对象(P63)归纳拓展(1)target sb./sth. 把作为目标be targeted at 针对，以为目标(2)hit/miss the target 中/脱靶a target for all 众矢之的meet/achieve a target 完成/达到目标The company has_targeted adults as its primary customers. 这家公司将成年人作为其主要的目标客户。This course is mainly targeted_at English beginners.这门课主要针对英语初学者。The boy hit_the_target with his first dart. 那男孩第一镖就击中了目标。单句写作箭脱靶了。The arrow _.这个餐馆的早餐和午餐针对的是在附近工作的人。Breakfast and lunch of the restaurant _ the people working nearby.答案：missed the targetare targeted at3fortunately adv. 幸运地(P63)归纳拓展(1)fortunate adj. 幸运的；吉利的be fortunate to do/(in) doing . 做很幸运It is fortunate (for sb.) to do/that . (对某人来说)做是幸运的。(2)fortune n. 运气，命运；财富，财产make a fortune 发财，赚钱(3)unfortunate adj. 不幸的unfortunately adv. 不幸地Fortunately,_the rain stopped before we started. 幸运的是，在我们动身前雨停了。We are_fortunate_to_live/(in)_living in such a peaceful country. 我们生活在这么和平的国家里真幸运。It_was_fortunate_that nobody was hurt in the accident.幸运的是事故中没有人受伤。He went to Beijing and soon made_a_big_fortune.他去了北京，不久便发了大财。名师点津fortune作“机会，运气”讲时为不可数名词，作“财产”讲时为可数名词。(1)单句语法填空_ was fortunate that we all passed the exam.I was late, but _ (fortunate) the class hadnt started.I called on you yesterday, but _ (unfortunate) you were out.答案：Itfortunatelyunfortunately(2)单句写作如果你能发现