牛津发现Oxford Discover 3 Unit 9 知识点总结

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牛津发现Oxford Discover 3 Unit 9 知识点总结

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Word
Word Phonetic Meaning ExampleSentence
windmill / w ndm l/ n. 风车 The old windmill has been restored and now grinds grain again.
sailboat / se lb t/ n. 帆船 They spent the weekend sailing on their sailboat.
wind turbine /w nd t rba n/ 名短语 风力发电机;风轮机 The wind turbine generates electricity from the wind.
wind farm /w nd fɑ rm/ 名短语 风电场 A new wind farm was built offshore to provide clean energy.
coal /k l/ n. 煤 Many power plants still burn coal to generate electricity.
oil / l/ n. 石油;油 The country relies heavily on oil exports for its economy.
natural gas / n t r l ɡ s/ 名短语 天然气 Natural gas is a cleaner fossil fuel compared to coal.
pollution /p lu n/ n. 污染 Air pollution is a major problem in many large cities.
power plant / pa r pl nt/ 名短语 发电厂 The power plant supplies electricity to the entire region.
electricity / lek tr s ti/ n. 电;电力 This machine runs on electricity and is very efficient.
Before you read
Word Phonetic Meaning ExampleSentence
source /s rs/ n. 来源;源头 Solar energy is a clean source of power.
fossil fuels / f sl fju lz/ 名短语 化石燃料(复数) Coal, oil, and natural gas are all fossil fuels.
nonrenewable / nɑ nr nu bl/ adj. 不可再生的 Nonrenewable resources like coal will eventually run out.
renewable /r nu bl/ adj. 可再生的 Wind and solar power are renewable energy sources.
Read
Time and the earth
Key words
Word Phonetic Meaning Example Sentence
energy / en d i/ n. 能源,能量 Most of the energy we use comes from the sun.
fossil fuels / f sl fju lz/ n. 化石燃料(复数) We call these fossil fuels.
pollution /p lu n/ n. 污染 Fossil fuels make pollution.
nonrenewable / n nr nju bl/ adj. 不可再生的 Fossil fuels are also nonrenewable.
green energy /ɡri n en d i/ n. 绿色能源 Scientists want people to use green energy.
renewable /r nju bl/ adj. 可再生的 It is renewable.
run out /r n a t/ v. 用完,耗尽 It won't run out.
hydropower / ha dr pa r/ n. 水力发电 Hydropower uses moving water in rivers and dams.
turbine / t ba n/ n. 涡轮机 ...the blades of a turbine.
blades /ble dz/ n. 叶片(复数) This water pushes the blades of a turbine.
windmills / w ndm lz/ n. 风车(复数) Windmills made flour from grain.
wind turbines /w nd t ba nz/ n. 风力涡轮机(复数) Today, wind turbines make electricity.
biomass / ba m s/ n. 生物质能 Biomass is energy that we get from plants around us.
crops /kr ps/ n. 农作物(复数) We plant new trees or crops after we use it.
solar power / s l r pa r/ n. 太阳能 Solar power comes from sunlight.
solar panels / s l r p nlz/ n. 太阳能电池板(复数) The sun shines on solar panels, and electricity is made.
surface / s f s/ n. 表面 ...under the Earth's surface.
常用短语
搭配/短语 含义/翻译
come from the sun 来自太阳
turned into coal, oil, and natural gas 变成了煤、石油和天然气
drive our cars and trucks 驱动汽车和卡车
power plants 发电厂
make electricity 发电
make pollution 产生污染
hurt the Earth 伤害地球
run out 用完,耗尽
main sources of green energy 绿色能源的主要来源
moving water 流动的水
push the blades of a turbine 推动涡轮机的叶片
the blades spin 叶片旋转
make electricity 发电
wind farms 风力发电场
in one area 在一个区域
dead wood or grass 枯木或草
turn corn into fuel 将玉米转化为燃料
plant new trees or crops 种植新树木或作物
as cheap as some fossil fuels 和某些化石燃料一样便宜
rise and fall each day 每天涨落
in the future 在未来
good news for our Earth 对我们地球的好消息
语法与句式要点
1.情态动词 can 表示能力与可能性
用法:表示能够做某事或具备某种功能。
原文例句 1:Scientists can also turn corn into fuel.
原文例句 2:This moving water can make electricity.
原文例句 3:Scientists can use this heat for energy.
2. 情态动词 may 表示可能性
用法:may 表示某事有可能发生或存在,语气较为委婉。
原文例句:We may find other sources of green energy in the future.
3. 情态动词 could 表示可能性
用法:could 表示某事未来有可能发生。
原文例句:Some day, green energy could make 100% of the electricity we use.
4. 一般现在时被动语态
用法:is/are + 过去分词,强调动作的承受者或客观事实。
原文例句 1:Fossil fuels are also burned in power plants.
原文例句 2:Biomass is burned in power plants.
5. 动词不定式表目的
用法:to do 表示目的。
原文例句:Scientists want people to use green energy.
6. 省略关系代词的定语从句
用法:we use 是省略了 that 的定语从句,修饰先行词 energy 或 electricity。
原文例句 1:Most of the energy we use comes from the sun.
原文例句 2:16.6% of the electricity we use.
Grammar
May / Might 的核心用法
1. 表示可能性(可能性大小)
May 和 might 都表示“可能”,might 的语气通常比 may 稍弱(更不确定)。
两者可以互换,但有些语境下 might 表示“更小的可能性”。
可能性层级(高→低):
情态动词 可能性 例句
will 确定(90%以上) It will rain.(一定会下雨。)
may 可能(50%左右) It may rain.(可能会下雨。)
might 可能性较小(30%左右) It might rain.(也许会下雨,但不一定。)
may not 可能不会 It may not rain.(可能不会下雨。)
对比例句:
He may be at school today.(他今天可能在学校。——可能性较高)
He might be at school today.(他今天也许在学校。——可能性较低)
2. 表示不确定的未来事件
谈论将来可能发生也可能不发生的事情。
Scientists may discover new planets.(科学家可能会发现新行星。)
The game might be cancelled due to rain.(比赛可能会因雨取消。)
We may go to the beach this weekend.(我们这个周末可能去海滩。)
3. 表示现在的推测
基于现有信息对现在情况的不确定判断。
She may be in her office now.(她现在可能在办公室。)
He might be sleeping.(他可能在睡觉。)
They may know the answer.(他们可能知道答案。)
4. 表示不确定的计划(非正式决定)
I might go to the party tonight.(我今晚可能会去派对。——还没决定好)
We may eat out for dinner.(我们可能会外出吃饭。)

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