托福寫作回憶和解析含范文 本文由培頓 教育成都學校李丹老師整理提供,供大家參考學習!本次托福考試寫作綜合點評:這次托福考試寫作部分整體難度適中。其中,綜合寫作考查環境類,整體難度適中,除了部分環境類的專業詞匯。獨立寫作考查教育類話題,難度適中,類似2019/6/29考題,學生在備考過程中如果熟悉有關教育類素材應該問題不大。
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話題分類環境類
考題回憶總論點三種alternative methods去代替fossil fuel,來解決global warming
閱讀部分現在汽車使用化石燃料會釋放二氧化碳carbon dioxide,是造成全球變暖global warming的主要原因,提出了三種alternative methods去代替fossil fuel:
分論點一: 氫能源hydrogen energy。氫能源是有氫hydrogen和氧oxygen產生的,不會排放二氧化碳carbon dioxide,只會排放水;
分論點二:生物燃料bio-fuel。生物燃料是從植物中提取的(extracted from),提取過程中是釋放release二氧化碳,但是,植物生長過程中是會吸收absorb二氧化碳的,所以吸收的二氧化碳是可以抵消釋放出的二氧化碳的 ;
分論點三:從空氣中提取二氧化碳轉化convert成替代合成燃料。這樣即便燃料使用過程中排放二氧化碳,也只是一種二氧化碳的循環,不會真正增加空氣中二氧化碳含量。
聽力部分認為這三種alternative methods都not practical或有drawbacks:
分論點一:氫燃料確實不會釋放二氧化碳,但是生產加工出氫燃料的過程是需要燃燒傳統的含碳的fossil fuel的,比如需要使用天然氣,而用天然氣去生產氫燃料仍然會釋放大量的二氧化碳,所以global warming并不會得到緩解;
分論點二:生物燃料無法去replace化石燃料。因為要生產bio-fuel,那就需要種植大量的植物,需要有足夠的land。例如,在美國生產bio-fuel的話,需要用掉兩百萬平方公里的土地來生產玉米和甘蔗corn and sugar cane,這個面積相當于美國現在農業用地的兩倍。然而實際上,并沒有那么多土地去種植;
分論點三:從空氣中提取燃料,在目前來看并不實際not practical。現在的科學技術還無法實現將大量二氧化碳轉化成大量燃料來滿足現在人們對燃料的需求。
解題思路傳統四段式寫作,每一段閱讀內容+聽力內容,注意細節和同義替換
參考范文The reading passage claim that nowadays since the increasing use of automobiles, the discharge of carbon dioxide is the main reason for global warming. In order to reduce the use of fossil fuels, the writer offers three solutions to replace its use. The listening material, however, points out that these methods are not practical.
First of all, the reading passage suggests to use hydrogen energy, which is composed of hydrogen and oxygen so it cannot release carbon dioxide except for water. However, the listening argues that the production of hydrogen energy needs to burn fossil fuels, such as natural gas. The whole process will still produce carbon dioxide and so cannot help alleviate global warming.
Secondly, the article says that bio-fuel is another effective way, which is extracted from plants. Although this process may release carbon dioxide, the growth of plants can absorb these CO2. The lecturer, however, rebuts it by pointing out that in order to produce bio-fuel, a large number of plants need to be cultivated, but the truth is that there are not enough lands. He takes America as an example. To produce bio-fuel, two million square kilometres of lands need to be used to plant corn and sugar cane, which almost double the agricultural lands in the US.
Finally, the author advises to convert CO2 in the air into another synthetic fuel, by which he means that although it still could release CO2, this process is only a recycle of CO2 and no more CO2 can be produced. In contrast, the lecturer’ position is that because the technologies at present cannot convert such a large amount of CO2 into fuels to meet people’s demand, this method is not practical at all.
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