It's very nice to see that kids can learn environmentally fr

楼上解释有误.
这两个逗号不能省略.
that is = that is to say = namely,这是一个固定短语,在句中做独立成分,类似于for example,它和句子其他成分一般要用逗号隔开,其意思是“那就是说；也就是说；即”.
that is并不是从句.
再如：I am 22,that is (to say),I was born in 1990.
我今年22岁了,也就是说,我是1990年出生的.

environmentally friendly renewable energy
环保可再生能源
President Jimmy Carter, in an address to the nation, proposed that by the end of the century, 20% of the electricity used in the U.S. should be derived from the sun. At the time he made the statement, it seemed like an environmentally friendly vision that could be accomplished; however, as we enter the year 2002, solar and wind generated power only supply about 2% of the nation’s demand for electricity. In the past, the barrier that separated wind and solar energy from fossil fuel energy was cost efficiency. Recently, many advances in technology may have broken that cost barrier, and it may no longer be an obstacle for industry and consumers to have cheaper access to renewable energy. Some officials comment that the prices of renewable energy are about 1/8 of what they were 12 years ago, and they expect solar and wind powered energy to be the fastest growing energy source for individual buildings and houses over the next few decades. In fact, in some areas, wind farms are growing in demand because they are cheaper to add than non-renewable fossil fuel energy sources. Some energy analysts are optimistic that by the year 2020, wind and solar energy may supply 10% of the nation’s energy demands. Other renewable energy sources such as hydroelectric dams, which currently generate about 8–10% of the nations electricity, are not expected to grow in demand. Although hydroelectricity is viewed as a clean energy source, it does come at a high price of altering the natural flow of river water, nearby plant and wildlife habitats, and forcing some fish species near extinction. The worksheet includes the URL for the U.S. Department of Energy web site.

仅供参考,有些句式可以套用.愿你写出一篇好的文章.

d

小题1:B
小题1:A
小题1:B
小题1:D
小题1:D


小题1:根据第一段Fashion isn’t very environmentally-friendly because it makes people buy things they don’t need, just because they’re new. 描述，可知选B。
小题1:根据第二段Old styles are fashionable again, so one way is to buy second-hand clothes — recycled clothes.及本段描述，可知选A，回收潮流。
小题1:根据第三段描述，可知任何使用天然染料的有色材料都是对环境无害的。故选B。
小题1:根据最后一段Now fashion-designers are working with these materials and the clothes are beautiful as well. So now we can buy fashionable clothes that are also environmentally-friendly.描述，可知选D。
小题1:根据第一段How can we buy fashionable clothes and protect the environment?及下文描述，可知这篇短文主要讲述了时尚和环境的关系，故选D。

Our class had a discussion about protecting the environment. Here is my opinion.
I think the environment is one of our biggest worries. It was found out that a lot
of air pollution is actually caused by ordinary people, not just by big factories.
There are　so many things each one of us can do every day. It’s best for people
to take　buses or walk instead of driving cars. We should stop to use plastic bags
for shopping. We can cut down on waste, recycle trash and eat more natural food.
In these ways we can save energy and reduce pollutions.

environmental是形容词,环境的
environmentally是副词,有关环境方面
你可以举个例子说明下什么时候environmentally是adj.That means we should only buy and use environmentally friendly goods.
回答environmentally friendly 这里的environmentally依然是副词,修饰形容词friendly.翻译为环境友好型

environmentally- friendly 这个对.
说 eco-friendly 也行吧

副词修饰副词现象,如,He ran very fast.自己慢慢体会,题中可以翻译成环境友好型……

这是一个典型的虚拟语气.当句子中有crucial,important,necessary等形容词做表语时,后面that引导的主语从句要用虚拟语气,形式是（should）+动词原型,should可以省略掉.

A, AWARE
aware多作形容词,意为“知道的；察觉的”,常接of + 名词、代词、动词?；也可以接从句,此时可以省略介词of,其前常被副词well / quite / fully 修饰.aware还可与politically,environmentally等副词连用,表示“有觉悟；有意识”.
其名词形式为awareness,意为“察觉；觉悟；意识(+ of / that)”

one是不定代词,做先行词时定语从句的关系代词用that不用which

在北京,公共汽车为人们的出行带来了很大的便利,并且它还很环保.
Environmentally 是副词,Friendly 是形容词.environmentally修饰friendly,这个没错!
friendly就是用来说 buses 的啊.单看后面这句话,去掉also,environmentally这样的修饰的成分,句子主干就变成了 It is friendly!
这样的句式就好比 you are beautiful .I am cold 一样.
( Environmentally friendly就是【环保的】的意思,这个属于一种搭配,根据句意,是不能拆开的,否则就不符合句子想表达的意思了,我之所以把句子拆开,提出主干,是为了方便你理解.)
欢迎追加.

选C
就是养成了.的习惯

答案是D,后边的跟前面一句有联系,你可以这样看,What we want is one that is good on gas.此处的one代指car,that引导定语从句

A

我怎样做一个绿色使者

未来的厨房将是环境友好的(即环保的).

that is 在这里是插入语,不是从句.插入语的标志就是两端的逗号,插入语放在这儿,有个停顿,起到强调、突出后面要说的内容的作用.既然是插入语,就可以拿掉,那么还剩一个逗号,两个逗号都拿掉,作为书面语是不行的.
另外,恕我直言,此句中还有两个值得商榷的用词,一个是environmentally-friendly,另一个是bicycle riding,个人认为,应该用environment-friendly和cycling更地道.

第三,从环境角度来说,这更值得一提,因为对私人汽车的严重依赖导致的大量燃料消耗和喜欢自己驾车的习惯对空气质量的变坏有直接因素.
===问题补充："environmentally""desirable"这两个地方翻译起来有点困难...
翻译如上,并不是说英文是什么格式,中文就要对应什么格式
如果你要直译：就是：对于环境来说这更迫切需要,因为.

What's more ,bicycles are (加上more)environmentally friendly than cars,though(改为and) they hardly make noises.改错.