如图是自然界碳的循环示意图，请据图分析后回答：（1）自然_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

如图是自然界碳的循环示意图，请据图分析后回答：

（1）自然界CO₂的来源途径有　　（任写一点）；

（2）任何物质都有两面性，CO₂对人类的正面影响是促进植物光合作用等，不利影响有　（任写一点）；

（3）人类降低空气中CO₂含量的研究有两个方向：一是减少CO₂排放，二是增加CO₂消耗，请写出一条你能做到的消耗CO₂的方式或途径　　．

答案

（1）化石燃料燃烧（或动植物呼吸等，合理即可）；（2）温室效应（或温室效应的具体表现等均可）；（3）植树造林（种草等均可）．

题目分析：（1）根据图片信息，自然界CO₂的来源途径有化石（或矿物）燃料燃烧和动植物呼吸等．（2）二氧化碳是大气中主要的温室气体，此外还有甲烷、臭氧、氟利昂等，产生温室效应是二氧化碳对环境的主要不利影响．（3）光合作用是自然界中消耗二氧化碳的主要途径，且植树造林是我们容易做到的消耗CO₂的方式或途径．

填空题

A good translator is by definition bilingual. The opposite is not ______(1) true, however. A born and bred bilingual will still need two__________(2) to become a translator: first, the skills and experience necessary for__________(3); second, knowledge of the field in which he or she will__________(4). The skills and experience for translation include the ability to write ______(5) in the target language, the ability to read and understand the_________(6) language material thoroughly, and the ability to work with the latest__________(7) and communication hardware and software.Does a born and bred bilingual__________(8) a better translator than someone who learned language B later in__________(9) There is no definite answer, but the following issues are important.__________(10), a born and bred bilingual often suffers from not truly knowing __________(11) language well enough to translate, with some even suffering from what __________(12) known as a lingualism, a state in which a person lacks_________(13) full, fluent command of any language. Second, born and bred bilinguals__________(14) don’’t know the culture of the target language well enough to_________(15) top-quality translations, or cannot recognize what aspects of the source language__________(16) its culture need to be treated with particular care, as they_________(17) in a sense too close to the language. And last, they often_________(18) the analytical linguistic skills to work through a sticky text.On_________(19) other hand, the acquired bilingual may not have the same in-depth _________(20) of colloquialisms, slang, and dialect that the born bilingual has. Also, the acquired bilingual will not be able to translate as readily in both directions (from B to language A and A to language B). Finally, born bilinguals often have a greater appreciation of the subtleties and nuances of both their languages than someone who learns their B language later in life can ever hope to have.

问答题简答题

特殊因素以哪两种方式作用于控制图上？