Chapter2 protecting our environment
1、课文重点语言点
1. making things dirty and unhealthy. 幼儿三字经全文
Make的用法：★重点
▲ make sth.\sb. + adj. 使...处于某种状态,如：the good news made me happy.
▲ 做使役动词:make/let/ have sb.do sth. 使某人做某事（使役动词后接动词原形），如：
The boss made his workers work 15 hours a day.
Don't let him do the job.
文学教育
2. The best-known flowers in ....the sweet-smelling flowers are known as the flowers of Shenzhen city.
▲best-known 最有名的（well-known的最高级 well-known=famous著名的）
▲be known as=be famous as 作为...而著名
be known for= be famous for 因为....而著名别墅装修一般多少钱一个平方
3. Trees give out harmful gas. ★重点
▲give out ①优惠发出光、热、气味等，如：the sun gives out light and heat. ②分发he gave out all his money to the poor. ③被耗尽，用光：our food has given out
▲拓展和give 相关的词组： give off= give out, give up doing放弃，停止做某事
4. Trees can pass information to one another.
▲pass sb. sth. = pass sth. to sb. 向某人传递某物
如：Pass me the book.
=Pass the book to me.
▲可接双宾的还有give, buy, show, offer, provide，bring等词
▲ one another和each other:都表示“互相”，可通用。one another用于三者或以上；each other表示两者之间。如：both of you should help each other.
The three girls looked at one another.
5. Judy is collecting about trees.
▲collect v. 收集，接某人 collection n. 收集
如：She likes collecting photos. She has a good collection of old photos.
My mother collects me from school every day.
▲ fact n. 事实，真相 in fact=actually实际上，事实上
▲ on和about:都是“关于”的意思。on用于较正式的演讲、学术、书籍等；about用于非正式的谈话或随便提及。★难点
如：a talk ____ the history of the Party a report _____ pollution a story ______ animals
a project_____ English study
Can you tell me something ________ yourlf?
6. Why are you so interested in trees?
▲be interested in = be keen on= be fond of 对.....有兴趣(后接名词或动名词) ★重点
▲拓展： interested感兴趣的/interesting 有趣的 relaxed 感到放松的/relaxing 令人放松的
excited感到兴奋的/ exciting 令人兴奋地 surprid感到惊讶的/surprising令人惊讶的
总结：以-ed结尾的形容词修饰人，说明人的性格或情绪；以-ing结尾的形容词修饰物，说明事物的特征。
7. They are the biggest and oldest living things on Earth.
昨夜星辰昨夜梦
▲the biggest and oldest最大最古老的，形容词最高级前加定冠词the.
▲辨析live/living/alive/lively ★难点
live v.居住，生活
living adj. 活着的，做定语 living thing 生物
alive adj. 活着的，做表语，反义词dead. 或做定语，放名词后，如：After the terrible accident, he was still alive. He is the only person alive in the accident.
lively adj. 生动的 our English class are interesting and lively.
▲ on Earth= the Earth 在地球上
on earth 究竟，常用于口语中，用来加强语气.如：what on earth do you want?
8. But what are they uful for?
▲be uful for sth./doing sth. 对...有用，如：Trees are uful for human being.
9. The rubber on the end of扁平足手术 your pencil. ★重难点
▲on the end of 在...的末端
▲at the 在...的尽头，在...的结尾。如：at the end of this street/ at the end of this month.
▲in the end=at last= finally 最终，最后
10. You must欢乐斗地主电脑版 thank trees for that, too.
▲thank sb.for sth./doing sth.意为“因为某事而感谢某人”。如：we should thank our parents for looking after us.
▲ 日常用语：thank 或 ★重点
如：Thank you for your help.
Thanks for helping me.
▲too表示“也”，用于肯定句的句末；在否定句中用either.如：I don't like maths, either.
10. Three trees can do the job of 15 air conditioners.
▲do the 起...的作用，如：dictionaries can do the job of a good teacher.
11. You know a lot about trees. ★重点
▲a lot修饰动词，译为“很多，非常”。如：thanks a lot.= Thanks very much.
▲a lot of= lots of 很多，修饰可数和不可数名词 a lot of people/ money
12. When incts attack a tree, it can warn its neighbour. ★重点
▲ warn的用法: warn sb. of/about sth, 警告某人注意某事,如：nobody warned him of the coming danger.
warn sb. not to do sth. = warn sb. against doing sth.警告某人不要做某事，如：my mother warned me not to swim in the river.
13. Some trees can also join their roots together underground. ★重难点
▲join的用法：①加入(后接党派，军队，人)，成为其中一员 join the army/ join us ②连接 join sth. together 使....连接在一起，如：The bridge joins the two cities together. ③join in= take part in 参加活动，游戏，球赛。如：come on and join in the football game.
14. Are they in danger?
▲ be in danger 处于危险中 be in great danger 处于巨大的危险中
行政管理专业15. We are destroying our best fighters against pollution.
▲fighters against pollution =pollution fighters 抗污染的战士
★难点▲against 介词，反对，对抗。用在be动词或动词之后。如：are you for or against us?
We should always fight against pollution.
三、课后重点语言点
16. ...can share food and water with one another.
