复习unit3 单词、短语、重点句子和语法一、单词：核心词汇名词可数名词field — a field — two fieldsquiz — a quiz —three quizzesa ground — four groundsland — a land — two landsproblem — a problem — four problemsFact — a fact — several facts不可数名词the Earth（地球）— the Moon(月亮) — the Sun(太阳)pollution（n.）— pollute（v.）=make sth dirtyenergy (n.) — clean energy（清洁能源）— heat energy（热能）二、短语/固定搭配：1、短语：provide …with…put…into…find out throw awaybe covered by on earthin the sky a lot ofmake energy of coursefor example one quarterthree quarters at hometake a look come fromfind out different types ofin the end get cooler2、固定搭配：call sth. sth.provide sb. with sth.stop doing sth.it be +形容词+ for sb. +to do sth.let sb. do sth.help sb. do sth.ask sb. (to) do sth.keep sb. + 形容词三、经典句型：There are also many people like you and me on earth.It is important for us to protect the earth for our future.What is the weather like in different places on earth?四、重点短语1.protect the Earth保护地球protect sb/sth from doing我们必须保护那片森林免受火灾。
翻译：2.provide sb with sth. = provide sth. for sb.为某人提供某物=give sb sth=give sth to sb【拓展】supply sb with sth. = supply sth. to sb.为某人提供某物offer sb sth. = offer sth. to sb提供某人某物太阳给我们提供光和热。
翻译：3.make energy制造能源4.put … into …把……倒入……他们把废水倒入河中。
翻译：和put 相关的短语：put on put off put out5.stop doing sth停止做某事stop sb from doing sth阻止某事发生stop to do sth.停下来去做（另一件）事王先生进来时，我们停止了谈话。
翻译：当我们在街道上碰见时，我们停下来说话。
翻译：6.throw away扔掉不要乱扔废纸。
翻译：7.a report on/about …关于…的一个报告8.keep sb/sth. safe保证某人/某物的安全keep sb. /sth+ 形容词保持某人/某物外套能使你暖和。
翻译：我们尽最大的努力使我们的学校保持干净、整洁。
翻译：9.take a look at sw.看一看某地10.on Earth在地球上我们生活在地球上。
翻译：on earth 还有“到底，究竟”的意思，置于what, when等疑问词后，以加强问句的语气这到底是什么东西？翻译：on earth 还可以作“世上”解，用于最高级以后，以加强语气我是世界上最幸福的人。
翻译：相关短语：on the land在陆地上in the sky在天上under the water在水下11.go with sth.与……相配;适合于12.lift sth up举起某物13.keep sth alive使某物继续存在/使某物继续下去e from sw.= be from sw.来自（于）15.ask sb (not) to do sth.要求某人（不）做某事ask sb for sth向某人要某物16.make sth. clean/dirty使某物干净/弄脏make sb do sth.使某人做某事17.at the beginning of …在……之初【拓展】at the end of在……结尾；在……末端18.some …some…一些……一些……这里有许多花园，一些是大的，一些是小的。
翻译：19.burn sth=set sth on fire 燃烧某物她把书全烧了。
翻译：20.fewer and fewer 越来越少形容词比较级+and+形容词比较级越来越…….我们的国家变得越来越强大。
翻译：常考句型1.There are forests and rivers, mountains and fields.(地球上)有森林和河流，山脉和田野。
【辨析】there be表示“某时/某地有某人/某物”，强调存在关系；have 表示“拥有”，强调所属关系。
2.All plants need light and water. 所有的植物都需要阳光和水。
→ Light and water are needed by all plants.need sb./sth. to do sth. 需要某人/物做某事我需要你帮我。
翻译：need to do sth. 需要做某事你需要马上去那儿。
翻译：3.There are also many people like you and me on Earth.地球上也有很多像你我一样的人。
= There are many people like you and me on Earth, too.【辨析】also, too, either三者都表示“也”，also和too可以互换，都可以用于肯定句和疑问句，但also常放在句中；too常放在句末，too前面要加逗号；either只用于否定句。
4.The Earth provides us with air, water and food. 地球给我们提供空气，水和植物。
= The Earth provides air, water and food for us.5.It is important for us to protect the Earth for our future.为了我们的未来，保护地球很重要。
= To protect the Earth for our future is important.“I t+be+形容词+for+sb.+动词不定式短语”句型，意为：对某人来说做某事是……it 在句首做形式主语，后面的动词不定式短语才是句子的真正主语。
对我们来说学英语很重要。
翻译：对我们来说学好英语很有用。
翻译：练习：I．根据句意及首字母提示写单词，补全句子。
1. We all live on E_________.2. It is a good design (设计) p_________ for us to learn.3. This morning, we have a q _________ about Maths.4. We must p_________ ourselves because there are many dangerous things.5. Today, it's my turn to make a r_________ on studying.II．根据句意及汉语提示写单词，补全句子。
6. The arm is a_________(部分) of our body.7. There are many plants on the_________(陆地).8. There are many kinds of vegetables(蔬菜)in the _________(田野).9. The box is too _________ (大的) for you to carry.10. The country _________ (提供) people with fruit.11. There is a lot of _________(污染) in this city.12. I have no _________ (能量) to go on running!III．根据汉语提示补全句子，每空一词，缩写算一词。
13．中国有许多漂亮的地方。
There are many _________ _________in China.14．关于地球你知道些什么？What do you _________ _________the Earth?15．这场考试对我来说很重要。
This exam is very _________ _________me.16．不要在房子里烧东西，因为很危险。
_________ _________things in the house, because it's dangerous.17．你必须按时睡觉。
You _________ _________to bed on time.18．爸爸告诉我不要杀鸟儿。
Father tells me not _________ _________birds.19．我有许多书。
有些有趣，有些无聊。
I have many books. _________are interesting and _________ are boring.20．我们必须停止工作。
We must _________ _________.21．今天天气如何？_________ the weather _________today?22．图书馆有许多不同的书。
There are _________ _________ _________ in the library.IV．从下面的方框中选择适当的单词或短语并用其正确形式填空，补全句子。
put ... into, protect ... from, in the sky, much23. There is _________ rubbish in the place.24. We can see a lot of kites _________ _________ _________.25. The little girl _________her hands _________ her pockets.26. We should _________ our eyes _________ being hurt(被伤害)．五、名词的数名词按其所表示的事物的性质可分为可数名词和不可数名词两类。