资源简介 Unit 2 Topic 2 Section A课文讲解及知识点一 . 课文翻译 :( Kangkang , Maria and Jane are talking in a room . The wind outside is blowing strongly .)(康康、玛丽亚和简正在一个房间里交谈。外面的风刮得很大。)Kangkang : What bad weather ! The wind is so strong ! And the sand really hurt my face . While I was walking down the street just now , I couldn ' t see anything .康康:多糟糕的天气啊!风这么大!沙子真的打在我的脸上好疼。我刚才在街上走的时候,什么都看不见。Maria :I ' m sorry to hear that . What causes these sandstorms 玛丽亚:听到这个我很抱歉。这些沙尘暴是怎么引起的呢?Jane :People have cut down too many trees . As a result , a lot of rich land has changed into desert .简:人们砍伐了太多的树木。结果,很多肥沃的土地变成了沙漠。Maria :That ' s bad . How can that affect the weather 玛丽亚:那太糟糕了。这怎么会影响天气呢?Jane :Trees can stop the wind from blowing the earth away .简:树木可以阻止风把泥土吹走。Kangkang : And a lot of water can be saved by forests .康康:而且森林可以储存很多水。Jane :They can also stop the water from washing the earth away .简:它们还可以防止水流把泥土冲走。Kangkang : Cutting down trees is harmful to human beings , animals and plants .Although we have built " The Green Great Wall ", we still need to do something to protect the environment .康康:砍伐树木对人类、动物和植物都是有害的。虽然我们建造了“绿色长城”,但我们仍然需要做一些事情来保护环境。二 . 课文讲解及知识点:Kangkang, Maria and Jane are talking in a room. The wind outside is blowing strongly.Maria and Jane are talking in a room主语:Maria and Jane(并列主语)谓语:are talking(现在进行时)状语:in a room(地点状语)The wind outside is blowing strongly.主语:The wind outside谓语:is blowing(现在进行时)状语:strongly(程度状语)知识点:并列主语的使用现在进行时的构成(be + doing)介词短语作状语短语:in a room:在房间里The wind outside:外面的风blow strongly:刮得很大拓展短语:in the room/outside the room:在房间里面/外面blow gently/lightly:轻轻地刮风the wind inside/outside:里面的风/外面的风Kangkang : What bad weather ! The wind is so strong !感叹句:What bad weather!(主语+谓语省略的感叹句)主语:The wind谓语:is表语:so strong知识点:感叹句的用法so作为程度副词的用法短语:bad weather:坏天气so strong:如此强拓展短语:what good weather!:多好的天气啊!so beautiful!:如此美丽!And the sand really hurt my face.主语:the sand谓语:hurt宾语:my face状语:really(程度状语)知识点:及物动词hurt的用法(直接接宾语)副词修饰动词的用法短语:hurt my face:伤了我的脸really hurt:真的伤害拓展短语:hurt one's feelings:伤害某人的感情hurt badly:伤得很重While I was walking down the street just now, I couldn't see anything.时间状语从句:While I was walking down the street just now主语:I谓语:was walking宾语:down the street时间状语:just now主句:I couldn't see anything主语:I谓语:couldn't see宾语:anything知识点:时间状语从句的引导词while过去进行时(was/were + doing)情态动词couldn't的用法短语:walk down the street:沿着街道走just now:刚才couldn't see:看不见拓展短语:walk up the hill:走上山just then:就在那时couldn't hear:听不见Maria : I'm sorry to hear that. What causes these sandstorms 主句:I'm sorry to hear that主语:I谓语:am sorry宾语补足语:to hear that(不定式作补足语)疑问句:What causes these sandstorms 主语:What谓语:causes宾语:these sandstorms知识点:形容词短语作宾语补足语特殊疑问句(what引导)短语:I'm sorry to hear that:听到这个我很难过cause sandstorms:引起沙尘暴拓展短语:I'm glad to hear that:听到这个我很高兴cause rainstorms:引起暴雨Jane : People have cut down too many trees.主语:People谓语:have cut down宾语:too many trees知识点:现在完成时的构成(have/has + done)短语cut down的用法短语:cut down too many trees:砍伐了太多的树拓展短语:cut down expenses:削减开支too many people:太多的人As a result, a lot of rich land has changed into desert.状语:As a result主语:a lot of rich land谓语:has changed into宾语:desert知识点:结果状语从句(as a result)现在完成时的构成短语change into的用法短语:as a result:结果change into desert:变成沙漠拓展短语:as a consequence:因此change into water:变成水Maria : That's bad. How can that affect the weather That's bad主语:That谓语:is(缩写为's)表语:bad疑问句:How can that affect the weather 主语:that谓语:can affect宾语:the weather方式状语:How知识点:主系表结构的句子情态动词can的用法特殊疑问句(how引导)短语:That's bad:那很糟糕affect the weather:影响天气拓展短语:That's good:那很好affect the environment:影响环境Jane: Trees can stop the wind from blowing the earth away.主语:Trees谓语:can stop宾语:the wind宾语补足语:from blowing the earth away(介词短语作补足语,表示阻止风做什么)知识点:情态动词can的使用,表示能力或可能性。动词短语stop...from...表示“阻止...做...”。短语及拓展:stop sb./sth. from doing sth.:阻止某人/某物做某事blow away:吹走Kangkang: And a lot of water can be saved by forests.主语:a lot of water谓语:can be saved状语:by forests(表示被谁保存)知识点:被动语态的使用,can be saved表示水可以被保存。介词by表示动作的执行者。短语及拓展:a lot of:许多be saved by...:被...保存/节约Jane: They can also stop the water from washing the earth away.主语:They(指代trees)谓语:can also stop宾语:the water宾语补足语:from washing the earth away(介词短语作补足语,表示阻止水做什么)知识点:副词also的使用,表示“也”。与第一句相同的stop...from...结构。短语及拓展:wash away:冲走Kangkang: Cutting down trees is harmful to human beings, animals and plants.主语:Cutting down trees(动名词短语作主语)谓语:is表语:harmful状语:to human beings, animals and plants(表示对谁有害)知识点:动名词短语作主语。be harmful to...表示“对...有害”。短语及拓展:cut down:砍倒be harmful to...:对...有害Although we have built "The Green Great Wall", we still need to do something to protect the environment.引导词:Although让步状语从句:we have built "The Green Great Wall"主句:we still need to do something目的状语:to protect the environment(表示做某事的目的)知识点:Although引导的让步状语从句。need to do sth.表示“需要做某事”。不定式短语作目的状语。短语及拓展:The Green Great Wall:绿色长城(中国三北防护林体系建设工程)protect the environment:保护环境still need to do sth.:仍然需要做某事 展开更多...... 收起↑ 资源预览