做题时考虑的是并列层次，E只有提供燃料和房屋材料时，才会增加就业，提供药材时不会；D提供药材和燃料、房屋材料时，都会增加就业。
然鹅
D，forests supply sources of building material and firewood，sources是来源的意思，不能供应来源，
E，forests provide employment as sources of building material and firewood，森林作为建筑材料和燃料的来源提供了就业，对！
所以还是选E

12

从并列的角度来说，E和C都可以，在这一点上想了半天。
E the snake长得很奇怪但无毒，长得奇怪和无毒两个蛇的性质并列，ok；
C蛇长得奇怪，但蛇无毒。蛇无毒和蛇长得奇怪两件事情并列，ok。

E，feigning前要加and，不能用，连接

D，which require workers to stay until their last scheduled day in order to collect，require workers to stay in order to collect，to collect作动词stay的目的状语

E，which require workers to stay until the last day that they are scheduled to collect=which require workers to stay until the last day that the workers are scheduled to collect，
如果to collect是scheduled的目的状语，last day that the workers are scheduled to collect表示to collect the last day，错！
如果to collect是定语，修饰名词workers，如I have many letters to write，the workers are scheduled to collect，collect的对象是workers，错！

看到一个解释：better control of other infections such as---后面举例的就应该是control的手段 如果是better control of such infections as--后面举例的就应该是infection，非划线部分的两个例子是感染，所以A的结构是肯定不对的

B.C ing短语表达的是一种“过程”，通常在句中没有明确的时间终点，相反地，名词短语一般在句中具有明确的时间终点.

from which derive both the northern and the southern=both the northern and the southern Indian alphabets derive from which/(the Aramaic script)
derive一般现在时，起源于是通常的状态

mark

The list of animals that exhibit a preference of either using the right or the left hand
要分别将选项的exhibit或exhibits代向list和animals去比较哪个更好，而不是主观觉得list就是单数，应该跟exhibit

过去分词和现在分词可以平行

A，Less than 35 years after the release of African honeybees，核心词是after……作时间状语，35years修饰after多久
如：3 years after my leaving Nanjing，the city had changed a lot.

C，suppliers are growing fish twice as fast as (suppliers are) growing fish naturally
D，suppliers are growing fish twice as fast as fish grow naturally
D中第一个growing是现在进行时，表人们正在饲养鱼，第二个grow是一般现在时，指鱼通常具有的自然生长的状态。
比较的时间可以不一致，今天的我比昨天的我好，今天我打球打得比昨天好。

it没有就近修饰原则 可以指an event 也可以指小行星 只不过如果是指event就变成event marks 但event引起了灭绝 灭绝才marks时代的结束 ??? 就是A-B-C B才是C的原因

D选项：主从句错误同选项(A)。另外， had not been counted是过去完成时，表示过去的过去，但在本题中没有一个明确的过去时间作为参照，不应表达过去的过去。
谨慎使用过完

mark,
A is to B what C is to D是一个习惯表达

a错是因为work是动词，which修饰人是不允许的
e as in much of Eastern Europe, an overwhelming proportion of women work, many of them in，，，many of them作为同位语。。

还原倒装： Halley's comet caused such a worldwide sensation in no other historical sighting as in its returning of 1910-1911

capable of doing
capability to do
ability/ability to do