A，requiring doctors to see more patients, and (require doctors to ) spend less time on each
D，require doctors to see more patients, spending less time on each
一个是要求医生花更少的时间在每个病人身上；一个是看更多的病人，伴随发生的是医生花更少的时间在每个病人身上。应该是要求医生看更多的病人，并没有要求医生花更少的时间在每个病人身上，每个病人得到的时间更少是数量更多的自然产生的结果，用状语更优

A选项：我们不应该在谓语动词include前添加情态动词may，这会引起赘余的现象。由于主语中已经出现了possible，所以已经表示了是可能的事情，不必要再用may表示可能了。另外，and身后的核心词是sea level，但在逻辑上，长期温室效应的结果应包括“冰的融化“和”海平面的上升”。因此，and身后的核心词必须是“上升”，而不是“海平面”。

suggest+that+be 建议。。被。。
suggest+ that+is 显示

c为什么不对
Vanek analyzed 40 years of timeuse surveys conducted by home economists to argue that electrical appliances and other modern household technologies reduced the effort required to perform specific
Cowan argued that the "industrialization" of the home often resulted in more work for full-time home workers 。

mostly副词，修饰large，mostly larger，通常更大；The sauce is mostly cream. 这沙司主要是奶油。与most of the planets大多数星体意思不同

e为什么不对
Vanek analyzed 40 years of timeuse surveys conducted by home economists to argue that electrical appliances and other modern household technologies reduced the effort required to perform。。

subgroup modifiers：当修饰被修饰名词的一部分时，用some of which/whom, some of them, some 3种形式；
（1）some of which / whom 只能引导nonessential modifier，指代的物体为人时用whom, 为物时用 which。
如：Mike’s disappointment was shared by several players who were present, some of whom were so upset that they shouted at the judge.

（2）some of them/some用于独立的句子，不能作modifier引导从句
（3）some of them/some也可以用于独立结构，如同位语，如：
This model explains all known subatomic particles, some discovered only recently. 类似于名词+分词作同位语
Tom did many travels, some of them places of interest. 名词+名词作同位语
C，astronomers have detected more than 80 massive planets, most of them as large as or larger than Jupiter. 名词+形容词作同位语，补充说明planets

while暗示同时发生

没看见cease

以缩写字母组成的专有名词的复数形式可以是加's 或加 s。CEO's更为常用
倍数的比较：A is x times as big as B；A is x-1 times bigger than B；A is/do ……，x times B
as做连词时，表示当……时/由于/像……一样，按照……方式，
C，CEO's earn 419 times the pay of blue-collar workers now, as compared to 42 times their pay in 1980，as当……时，引导过去分词作状语

D选项可以通过其他方式弥补汽油上升成本，他们还是不会减少驾车，是削弱

1.句意分析，
2.Correct. 本选项在语法和逻辑上均是正确的。those做代词时和they是不同的。they是实物指代，即，指代前面出现过的那个名词；those是异物指代，指代的是前面出现过的名词的同类产品。例如本选项，those指代的只是一些crafts，而不是Thai village crafts（参考代词）

B，while是从属连词，从属连词+分词作伴随状语
D，but是并列连词，并列连词要求连接两个主句，并且第二个句子可以参考第一个句子的结构做省略。but introducing没有按第一个句子的格式省略，如果是but have introduced是可以的

In addition to ，介词+名词+介词，In addition to her work介宾短语，作定语或状语，
除了独立主格或从属连词引导状语从句等状语自带主语的情况，If you are not busy tomorrow, I will play football with you.，状语的主语即为主句主语。
A，Mary Leakey contributed to archaeology through her discovery, in addition to her work，正确
D，include her discovery and documenting, in addition to her work ,discovery、work是action nouns，her就近修饰discovery，不修饰documenting，documenting是simple gerund，action nouns和complex gerund平行，不能和simple gerund平行

独立主格表示事情发生的条件、原因、伴随发生的情况，及解释说明主句，但不能表示转折和对比。

up可以做副词，The temperature went up to 35°C.
The consumption is insufficient up to 40% people, up to 40% people做状语，修饰 insufficient，不够的范围？对40%的人来说不够。
in people 也是作状语，但介词都有自己的意思，in people在人们里面，错误。

well副词，prevent the disease well 很好地预防疾病的发生

There be侧重存在，一般无生命的用there be；have侧重拥有，有生命的用have
一个国家/城市有多少人用have，China/Shanghai have xx people.
一个城市有几栋楼用there be ，there are 13 tall buildings in Shanghai.

1、D在于主语冗余了，studies已经是第一个句子的主语了，and后面没必要再跟一个主语studies
2、关于D的一般过去时时态，一个句子根据动作发生时间的不同是可以有不同的时态的。I ran yesterday and swim today.
3、show短暂的或表结果的动词，也可以加have，Facts have shown us that he is trustworthy.事实已经表明他是值得信赖的。have done强调show这个动作产生了影响