1.Among the discoveries made possible bythe invention of the

1.Among the discoveries made possible bythe invention of the telescope they found that dark spots existed on the Sun in varying numbers.
they found 哪里错了
2.Because his experience in the naval medical corps had been rewarding,Bob applied to medical school after he was discharged from the navy.
rewarding是神马词性
3.Not very particular in nesting sites,house wrens may nest in birdhouses,mailboxes,building crevices—even in the pockets of hanging laundry.
particular in 应该替换成什么
4.At the reception were the chattering guests,the three- tiered cake,and the lively music that have become characteristic of many wedding celebrations.
为什么用were
5.For all their talk about ecology,major companies have so far spent very little to fight pollution.
A.For all their talk
for all their talk 在这里的意思和作用
6.The annual National Concrete Canoe Competition attracts teams of engineering students having designed canoes that promote the versatility of concrete.
A.having designed
B.who have designed
为什么选B不选A
7.The director’s insistence that there be adequate stage lighting and professionally installed backdrops in the theater was not obstinate but a determination to provide a safe work environment for the actors and stage crew.
B.was not obstinate but determined
E.resulted not from obstinacy but from a determination
为什么选E不选B
9.Although the candidate promised both to cut taxes and improve services,he failed to keep either of them after the election.
C.Although the candidate made promises both to cut taxes and improve services,he
C里面为什么improve services之前不用to
10.Chess players find that playing against a computer is helpful to improvetheir skills,even though no chess-playing computer has yet won a championship.
To improve为什么不对
11.Contrary to what many people believe,heat lightning is not lightning caused by heat; it is ordinary lighting that occurs at too great a distance for its accompanying thunder to be audible.
Contrary to 为什么是对的,我觉得应该是unlike
12 .The Great Gatsby is now considered a classic novel set in America’s Jazz Age,but in1925 its reviews would be missed and its sales would have been disappointing.
D.it had mixed reviews and its disappointing sales
不明白D里面its disappointing sales 在其中的结构
13.In 1850 Jim Beckwourth,a Black American explorer,discoveredin the mountains of the Sierra Nnevada a pass soon becoming an important gateway to California gold-rush country.
Soon becoming为什么不对
14.Given her strong sense of social justice,Burns vehementlyprotested over her party’s failure to support a tax decrease for senior citizens.
A里面的given的主体是什么

1.这个问题在于they 在这里指意不明.they 是从哪里冒出来的?who is 'they'?
语法上来说就是 pronoun with ambiguous reference.中文大概就是 介词指意模糊.
2.动名词是一种兼有动词和名词特征的非限定动词.属于名词词性.
3.particular about.
4.were没有问题啊 表被动语气
5.这题虽然我觉得是despite their word 但是A是选项中的最佳答案.主流公司谈论生态问题,却不愿意花钱去减少污染.就是“对照/鉴于他们说的话” ps：however,for all their talk在这里是informal的用法.
6.现在分词的完成式having done 一般说来不能作后置定语,应用定语从句who have desisigned较好.
7.determined是形容人有决心,这里主语是insistence,不能用determined形容.
9.跟cut taxes是并列关系 不用再加to.
10.应该是helpful in proving.因为这句话以动名词playing开始 必须跟动词ing 否则就不满足题目中的并列关系
11.unlike是可以啊 但是contrary to在这里有什么问题吗 就是对的啊~但是如果像这句话里面Opposite to most people I know,Annie,a good photographer herself,actually enjoys seeing the photographs that her friends take on their vacations.因为most people i know不是一个opposite的地址,所以才要换成unlike
12.1925年发生的事情,应该是过去时,而不是过去将来时,这里没有将来的概念在里面.
不对...你坑我吧 我做过这题啊 答案不是D啊 答案是its reviews were mixed and its sales disappointing 是一种省略结构,相当于：Its reviews were mixed and its sales were disappointing.
13.becoming是现在分词 不搭配前文的过去式discovered.否则需要改成which would soon become.
14.是protested吧 应该没有over的 鉴于她的强烈的社会公正感,伯恩斯强烈抗议她的政党没能支持为老年人减少税收.given的主体 就是她的社会责任感.
真多啊 这是几道么 忽悠我呢 这是十几道啊~你要不给我加分我就不活了
再问： 一定给你追加分数~不过再问一下，第四题为什么不是are呢，后面是have become啊~我觉得如果是were 的话，应该是had become才对呀~
再答： 因为were在这里不是代表的过去时态 而是句子倒装表被动