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英語選修6第四單元語法課件

發布時間:2021-02-17 21:00:15

① 英語選修六第四,五單元reading1的課文

Unit 4
THE EARTH IS BECOMIG WARMER-BUT DOES IT MATTER?
During the 20th century the temperature of the earth ros
e about one degree Fahrenheit. That probably does not seem much to you or me, but it is a rapid increase when compared to other natural changes. So how has this come about and does it matter? Earth care's Sophie Armstrong explores these questions.
There is no doubt that the earth is becoming warmer(see Graph 1) and that it is human activity that has caused this global warmig rather than a random but natural phenomenon.
All scientists subscribe to the view that the increase in the earth's temperature is e to the burning of fossil fuels like coal, natural gas and oil to proce energy. Some byprocts of this process are called "greenhouse" gases, the most important one of which is carbon dioxide. Dr Janice Foster explains: "There is a natural phenomenon that scientists call the "greenhouse effect".This is when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth. Without the'greenhouse effect
the earth would be about thirty-three degrees Celsciu cooler than it is. So, we need those gases. The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.
We know that the levels of carbon dioxide have increased greatly over the last 100 to 150 years. It was a scientist called Charles Keeling, who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. He found that between these years the carbon dioxide in the atmosphere went up from around 315 parts to around 370 parts per million(see Graph 2)
All scientists accept this data. They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. So how high will the temperature increase go? Dr Janice Foster says that over the next 100 years the amount of warming could be as low as 1 to 1.5 degrees Celsius, but it could be as high as 5 degrees.
However, the attitude of scientists towards this rise in completely different. On the one hand, Dr Foster thinks that the trend which increases the temperature by 5 degrees would be a catastrophe. She says, " We can't predict the climate well enough to know what to expect, but it could be very serious." Others who agree with her think there may be a rise of several metres in the sea level, or predict severe storms, floods, droughts, famines, the spread of diseases and the disappearance of species. On the other hand, there are those, like George Hambley, who are opposed to this view, believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be mild with few bad environmental consequences. In fact, Hambley states, "More carbon dioxide is actually a positive thing. It will make plants grow quicker; crops will proce more; it will encourage a greater range of animals-all of which will make life for human beings better."
Greenhouse gases continue to build up in the atmosphere. Even if we start recing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries. No one knows the effects of global warming. Does that mean we should do nothing? Or, are the risks too great?

Unit 5
EXCITING JOB
I have the greatest job in the world. I travel to unusual places and work alongside people from all over the world. Sometimes working outdoors, sometimes in an office, sometimes using scientific equipment and sometimes meeting local people and tourists, I am never bored. Although my job is occasionally dangerous, I don't mind because danger excites me and makes me feel alive. However, the most important thing about my job is that I help protect ordinary people from one of the most powerful forces n earth-the volcano.
I was appointed as volcanologist information for a database about Mount Kilauea, which is one of the most active volcanoes in Hawaii. Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast. Our work has saved man lives because people in the path of the lava can be warned to leave their houses. Unfortunately, we cannot move their homes out of the way, and many houses have been covered with lava or burned to the ground.
When boiling rock erupts from a volcano and crashes back to earth, it causes less damage than you might imagine. This is because no one lives near the top of Mount Kilauea, where the rocks fall. The lava that flows slowly like a wave down the mountain causes far more damage because it buries everything in its path under the molten rock. However, the eruption itself is really exciting to watch and I shall never forget my first sight of one. It was in the second week after I arrived in Hawaii. Having worked hard all day, I went to bed early. I was fast asleep when suddenly my bed began shaking and I heard a strange sound, like a railway train passing my window. Having experienced quite a few earthquakes in Hawaii already, I didn't take much notice. I was about to go back to sleep when suddenly my bedroom became as bright as day. I ran out of the house into the back garden where I could see Mount Kilauea in the distance. There had been an eruption from the side of the mountain and red hot lava was fountaining hundreds of metres into the air. It was an absolutely fantastic sight.
The day after this eruption I was lucky enough to have a much closer look at it. Two other scientists and I were driven up the mountain and dropped as close as possible to the crater that had been formed ing the eruption. Having earlier collected special clothes from the observatory, we put them on before we went any closer. All three of us looked like spacemen. We had white protective suits that covered our whole body, helmets,big boots and special gloves. It was not easy to walk in these suits, but we slowly made our way to the edge of the crater and looked down into the red, boiling centre. The other two climbed down into the crater to collect some lava for later study, but this being my first experience, I stayed at the top and watched them.
Today, I am just as enthusiastic about my job as the day I first started. Having studied volcanoes now for many years, I am still amazed their beauty as well as their potential to cause great damage.

② 人教版高中英語選修6第4單元Using Language聽力材料 急求

我已經通過「網路私信」把聽力發給你了,請查收。
如果你需要聽力文件,請你以追問的形式留下你的QQ號碼,我可以通過QQ直接把聽力文件發給你。

③ 英語選修六第四單元reading第四段和第五段知識點,求大神解答。謝謝。

這兩段都是突出「強調句型」的重要性:1.It was a scientist named ..,who made ....;2.They also agree that it is s the burning ..,that has result in this increase ....; 簡化方法,把"it be... that /who"去掉,句子結構完整,意內思不變。 希望能夠讓容你滿意,冬日愉快……

④ 英語選修六第四單元課文分為幾部分,分別講了什麼

英語選修六第四單元課文,你可以直接找到這本英語選修六的書進行查詢。

⑤ 急求:高二英語選修6第四單元第一篇課文翻譯

給出英文啊

⑥ 高二英語選修六單詞表(第四單元)

Unit 4

consume vt. 消費;消耗;耗盡;吃完
△ adj. 能再生的;可更新的
△greenhouse n. 溫室;花房
△Fahrenheit adj. 華氏的
n. 華氏溫度計
come about 發生;造成
△Sophie 索菲(女名)
△Armstrong 阿姆斯特朗(姓)
graph n. 圖表;坐標圖;曲線圖
random adj. 胡亂的;任意的
phenomenon (復數-ena) n. 現象
subscribe vi. 同意;捐贈;訂閱
vt. (簽署)文件;捐助
subscribe to 同意;贊成;訂購
△fossil n. 化石;從地下採掘出來的(礦物)
fuel n. 燃料
△byproct n. 副產品
△Janice 賈尼絲(女名)
△Foster 福斯特(姓或男名)
△methane n. 甲烷;沼氣
△Celsius adj. (溫度)攝氏的
quantity n. 量;數量
quantities of 大量的
tend vi. 趨向;易於;照顧
vt. 照顧;護理
go up 上升;增長;升起
△Charles Keeling 查爾斯?基林
△measurement n. 衡量;測量;尺寸
per prep. 每;每一
data n. 資料;數據
result in 導致
trend n. 趨勢;傾向;走向
catastrophe n. 大災難;浩劫
flood n. 洪水;水災
△drought n. 旱災;乾旱
△famine n. 飽荒
△George Hambley 喬治?汗布利
oppose vt. 反對;反抗;與(某人)較量
opposed adj. 反對的;對立的
be opposed to 反對……
mild adj. 溫和的;溫柔的;淡的
△environmental adj. 環境的
△environmentalist n. 環境保護論者
consequence n. 結果;後果;影響
state vt. 陳述;說明
range n. 種類;范圍
even if 即使
keep on 繼續
glance vi. 看一下;掃視
n. 一瞥
steady adj. 平穩的;持續的;穩固的
steadily adv. 平穩地;持續地
tendency n. 傾向;趨勢
widespread adj. 分布廣的;普遍的
on the whold 大體上;基本上
△economical adj. 節約的;經濟的
△hectare n. 公頃
average adj. 平均的
existence n. 生存;存在
outer adj. 外部的;外面的
on behalf of 代表……一方;
作為……的代言人
△indivial n. 個人;個體
adj. 單獨的;個別的
advocate vt. 擁護;提倡;主張
commitment n. 承諾;交託;信奉
put up with 忍受;容忍
pollution n. 污染;弄臟
growth n. 增長;生長
electrical adj. 電的;與電有關的
△appliance n. 用具;工具;器具
so long as 只要
casual adj. 隨便的;漫不經心的;偶然的
an so on 等等
motor n. 發動機
can n. 容器;罐頭
circumstance n. 環境;情況
microwave n. 微波爐;微波
refresh vt. 使恢復;使振動
ecator n. 教育工作者;教育家
contribution n. 貢獻
△imperative n. 祈使語氣;命令
△heading n. 標題
△slogan n. 標語;口號
presentation n. 顯示;演出
nuclear adj. 核的;核能的;原子核的
disagreement n. 分歧;不一致

Unit 5

diagram n. 圖解;圖表;示意圖
volcano n. 火山
△volcanic adj. 火山的
△volcanology n. 火山學
△volcanologist n. 火山學家
erupt vi. (指火山)爆發;突然發生
eruption n. 火山爆發;
(戰爭等)爆發
ash n. 灰;灰末
△crater n. 火山口;彈坑
△lava n. (火山噴出的)熔岩;火山岩
hurricane n. 颶風;風暴
questionnaire n. 問卷;調查表
alongside adv. 在旁邊;沿著邊
prep. 在……旁邊;
沿著……的邊
equipment n. 設備;裝備
appoint vt. 任命;委派
△observatory n. 觀象台;天文台;氣象台
database n. 資料庫;資料庫
△Mount Kilauea 基拉韋厄火山
evaluate vt. 評估;評價;估計
burn to the ground 全部焚毀
wave n. 波浪;波濤
vi. 波動;起伏;揮手
△molten adj. 熔化的;熔融的
fountain vi. & vt. 泉水般地噴出或湧出
n. 噴泉;源泉
absolute adj. 絕對的;完全的
absolutely adv. 絕對地;完全地
△spaceman n. 宇航員;航天專家
suit n. 一套外衣;套裝
vt. 適合;使適宜
helmet n. 頭盔
boot n. 靴子
make one』s way 前往
potential n. 潛在性;可能性;潛能
adj. 可能的;潛在的
actual adj. 實在的;實際的
△geology n. 地質學
△Mount Etna 埃特納火山
(義大利西西里島東北部)
△Sicily 西西里島(義大利南部)
△sample n. 樣品;樣本
candidate n. 候選人;候補者
△Mount Vesuvius 維蘇威火山
△threat n. 恐嚇;威脅
bungalow n. 平房;小屋
△Pompeii 龐培(義大利古都)
△tornado n. 龍卷風;旋風
typhoon n. 台風
thunderstorm n. 雷暴
precious adj. 貴重的;珍貴的
novelist n. 小說家
fog n. 霧
document n. 文件;證件
rainbow n. 彩虹
uncomfortable adj. 不舒服的;
不舒適的
balcony n. 陽台
unconscious adj. 失去知覺的;
未察覺的
shoot (shot, shot) vt. 射中;射傷
shot n. 射擊;槍炮聲
tremble vi. 搖晃;搖動;顫抖
sweat n. 汗
vi. 出汗
anxious adj. 憂慮的;不安的
anxiety n. 擔心;焦慮;渴望
panic (panicked, panicked) vi. & vt. 驚慌
n. 驚慌;恐慌
△tsunami n. 海嘯;地震海嘯
glance through 匆匆看一遍
△Manchu adj. 滿族的
n. 滿人
vary from…to… 由……到……不等
diverse adj. 多種多樣的;不同的
△diversity n. 多種多樣;多樣性
△crane n. 鶴;吊車;起重機
△leopard n. 豹
△spectacular adj. 引人入勝的;
壯觀的
bathe vi. 洗澡;游泳
△arouse vt. 激發;喚醒某人
appreciation n. 欣賞;感激;感謝
△peak n. 山頂;頂峰
△persuasion n. 信服;說服
guarantee vt. 保證;擔保

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