until直到……为止，强调动作的持续，It take sb a period of time until they reach adulthood，在他们成年前它一直在花费时间，错误，是to reach adulthood take time

enough to不表示因果关系，so that如此……以至于……
数量下降如此严重，以至于科学家把它列入濒危名单

考察木船代表了重大进步到底与考古学家发掘了木船平行，还是与木船是最早的建造船的案例评选，
木船是最早的建造船的案例，and 木船代表了重大进步

就近修饰，the solar system's largest planet修饰jupiter，离jupiter越近越好，

乘客增加20%，地铁增加5%。政府宣称因为拥挤造成的delay不会增加。explain
choice d,预计增加的乘客会发生在off-peak hours，目前这个时间段的trains被用得很少。correct

P: 增加未感染的hosts数量> C: 携带病菌的larva就会减少
choice a, 是否幼虫叮咬的其他物种宿主住在老鼠附近。 irrelevant，只关注两个宿主的数量
choice b, 是否现在dt数量受到了larva可获取的食物的限制, correct，如果是，说明现在dt数量被幼虫食物所限制（食物不够吃），即便增加了为感染宿主，有可能是为感染的larva增加，同时感染的larva数量不变。如果回答否，说明现在食物充足，增加未感染宿主可以降低感染的larva数量
choice c,是否dt的数量可以通过增加吃老鼠的动物数量被控制。irrelevant
choice d,是否未感染的larva在以后会变得感染。irrelevant
choice e, 是否其他species带有可以传染给人的细菌。irrelevant

where应紧跟homes，跟在electricity后面会引起歧义

boldface的作用是为了说明新推出的OXY水对于提高运动员肌肉中氧含量没有用

错选了choice e, (e) is irrelevant to the argument. the argument is only concerned with whether there could be bacteria of martian origin on earth.
the argument claims that, if there were martian bacteria on earth, then those bacteria must be gone by now.
whether there are bacteria originally from earth that have also disappeared is beside the question; it has no effect on the argument at hand.
不能默认所有起源地球上的bacteria 灭绝以后，就只剩下Mars originated bacteria了

B，as much as or more than sth，有more必有 than（后面跟了比较对象时），不能说 as much or more as sth，将as as和more混合在一起

The argument states that all bacteria found on Earth are from the "same planet"
> two bacterial strains on Earth are different enough to have arisen on different planets
The author then concludes that the "planet" is Earth.
He does not eliminate the possibility that all the bacteria on Earth is that from Mars.

wrong：found the noise continuous，continuous是形容词，不能做补语，只能作定语修饰noise，find的对象是noise；
Right：found that the noise was continuous，发现某件事，某个现象

when you say that a single number is "as big as" or "as many as" something, that's a way of putting "≤" into english words.

e.g., Our restaurant is capable of serving as many as 500 people at once.
this means "≤ 500".

the time interval "three years" is modified by a clause beginning with a subordinate conjunction ("after" in (A) and "since" in (C)). Because it's modified in this way, it does not need a preposition.

woman weave robe that used to dress and that this robe depicted scenes，第二个that没有充当成分，要么是名词性从句要么是同位语，这里没有东西可以同位，只能引导名词性从句作主语或宾语，说明第二个that应跟随主句谓语动词indicate；因为and的平行要求，则第一个that也应该引导宾语从句跟随indicate

"base是动词，based on是伴随状语，跟随主主语，wrong：Based on ancient records, women……
accord是动词，according to作伴随状语，跟随主句主语，wrong：According to ancient records, women……"
注意未划线部分and that的平行

E，凡是being done作定语或状语，意指被动动作的都是错误的，直接用过去分词

organized labor就是union啊，哦买噶！！！第一句话是说工会和黑人关系很好，第二句话是说工会只维护高等白人的权利！！！！！直指c选项！！！！！

How不能引导定语从句，Wrong：That't the way how he speak. how不能作定语修饰the way，Right: That's the way he speak.
He told me how he got there. 相当于He told me (that) how he got there, how作副词，在名词性从句中充当成分
I have no idea how he got there, maybe by bike. how作idea的同位语

AB选项的过去进行时表达不对，
D选项同时主谓一致上，yields和trenches 不对等
C选项，having been cut 时态不对。