Crop-growing skyscrapers摩天大樓 (第五段)

　　A major drawback of vertical farming, however, is that the plants would require artificial light. Without it, those plants nearest the windows would be exposed to more sunlight and grow more quickly, reducing the efficiency of the system. Single story greenhouses have the benefit of natural overhead light: even so, many still need artificial lighting. A multi-storey facility with no natural overhead light would require far more. Generating enough light could be prohibitively expensive, unless cheap renewable energy is available, and this appears to be rather a future assertion than a likelihood for the near future.

　　大作文常用詞匯

　　be exposed to 暴露于

　　reduce the efficiency 降低效率

　　greenhouses 溫室[可數(shù)]

　　have the benefit of 有好處

　　prohibitively expensive [費(fèi)用]過(guò)分地貴

　　小作文常用詞匯

　　nearest the windows：地圖題中，名詞后+nearest短語(yǔ)： The trees nearest the building are planned to be removed. 靠近樓的那些數(shù)會(huì)被挪走。far more: far用在形容詞的比較級(jí)或最高級(jí)前表示程度：The consumption of beef was by far the most popular in 1979. 1979年的時(shí)候，牛肉的消耗量是最大的，并且遠(yuǎn)遠(yuǎn)大于其他。

　　句子仿寫1

　　A major drawback of vertical farming, however, is that the plants would require artificial light.

　　在讓步段段首，句子結(jié)構(gòu)：A major drawback/benefit of sth, however, is that +完整句子. 例如：A major drawback of boarding school, however, is that parents lack communications with their children.

　　句子仿寫2

　　Generating enough light could be prohibitively expensive, unless cheap renewable energy is available.換個(gè)單詞：Generating enough power could be prohibitively expensive, unless cheap renewable energy is available后就可以直接用在環(huán)境類話題里面了。

　　句子仿寫3

　　This appears to be rather a future assertion than a likelihood for the near future.這句話可以放在開(kāi)頭段做背景介紹，也可以放在結(jié)尾段。

　　重點(diǎn)詞匯講解

　　generate

　　意思很簡(jiǎn)單：引起、產(chǎn)生，注意搭配：generate electricity/ heat/ powergenerate income/ profitgenerate new ideas generate a lot of interest 引發(fā)很多關(guān)注