46. It is one of nature s great ironies that the availability of nitrogen in the soil frequently sets an upper limit on plant growth even though the plants leaves are bathed in a sea of nitrogen gas.(3+)
下述情形真可谓是自然界的一个莫大讽刺:土壤中所能获得的氮肥量往往对植物的生长构成了一个上限,虽然植物的叶子被沐浴在一片氮气的海洋中。
难句类型:复杂修饰
解释:It是形式主语,其真正的内容是that之后的由even though连接的两个句子。其实本句的真正难度倒不在于句子的结构,而是对于其意思的理解:尤其是文科同学,可能缺乏必要的背景知识,就更不容易读懂。句中的set an upper limit on plant growth直译为 给植物的生成设立一个上限 ,其真正的意思是 限制了植物的生长 ;因此the availability of nitrogen in the soil frequently sets an upper limit on plant growth之中的availability一定指的是氮的供给之少。整句话的意思是,土壤中的氮植物能够利用,却太少;而空气中虽有大量的氮,植物却不能利用,这岂不是自然界开的一个大玩笑。
意群训练:It is one of nature s great ironies that the availability of nitrogen in the soil frequently sets an upper limit on plant growth even though the plants leaves are bathed in a sea of nitrogen gas.
国际英语资讯:Eritrea, Ethiopia sign peace accord in Saudis Jeddah
国内英语资讯:China, Japan, S. Korea pledge to enhance sports communication, cooperation
普京年提议年底前与日本签署和平条约
川普取消爱尔兰行程!只因当地人都不待见他!
马云直接宣布退休?!外媒竟是这么报道的...
国内英语资讯:China, Vietnam vow to promote practical cooperation for more fruitful outcomes
国际英语资讯:Egypt records no illegal immigration case since 2016: president
体坛英语资讯:German Zverev into U.S. Open third round for first time
体坛英语资讯:18th Asian Games draw to close as China dominate medal table again
国际英语资讯:Sudans ruling party announces new government formation
国内英语资讯:World air route development forum opens in Guangzhou
国际英语资讯:Arab League urges intl pressure on Israel to halt demolition of Palestinian village
国内英语资讯:China adds 375 million jobs in past 40 years
体坛英语资讯:Chinas Wang/Sun crowned in Asiad table tennis mixed doubles (updated)
No More Iron Rice Bowls 不再有铁饭碗
双语阅读:我国准备起草一项有关学前教育的法律
国内英语资讯:Tariff hikes wont address U.S. trade deficit: spokesperson
My View on Man-made Beauty 我对人造美的看法
双语阅读:这些方法有助于缓解孩子的上学焦虑
双语阅读:美加努力解决分歧,达成新北美贸易协定
体坛英语资讯:Wimbledon champion Kerber survives toughest Larsson to move on at US Open
双语阅读:研究显示 全球14亿人缺乏运动面临健康风险
国际英语资讯:S.Korea, DPRK to hold Pyongyang summit as agreed upon in Panmunjom summit
国内英语资讯:Super Typhoon Mangkhut lands on south China coast
国内英语资讯:China extends condolences to Philippine typhoon victims
体坛英语资讯:Kenyas Kipchoge looks to break world record at Berlin Marathon
体坛英语资讯:Serena Williams roars into U.S. Open quarters
国际英语资讯:Mexican govt confident of NAFTA deal by years end
秋季到了 这份养生攻略请收好
国际英语资讯:German Chancellor to visit Algeria on Monday to strengthen ties
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |