some questions,thanks!

britney_gao

1.____ in cases where special oxidants are used, fires are the results of a fuel rapidly combining with the oxygen in the air.
a. there are
b. even though
c. how
d. except
i think b is not wrong. but why not choose b?

2.before the formation of labor unions, individual workers has almost not voice in determining their wages, hours, or working conditions.
which one is wrong? how to correct it? i think "before" just can be followed by clause not a phrase. is it right?

3.free nitrogen is chemically inert and combines with other elements only since very high temperatures or pressures.
how to correct "since"?

4.to those who favorite free trade, the revival of barter can suggest nothing less than a disaster.
which one is wrong? how to correct it? i think "nothing" should be substituted for "no". right?

5. in the united states, about 75 percent of the total tomatoes crop is processed into juice, canned tomatoes, sauces, pastes, and ketchup.
which one is wrong? how to correct it?

6. today's nuclear fission fuels are the remnants of which used to be a much more active mixture of radioactive and fissionable materials two billion years ago and earlier.
which one is wrong? how to correct it?

7. petrography concerns primarily with the detailed description and classification of rocks, whereas petrology deals primarily with rock formation.
which one is wrong? how to correct it?


thanks a lot!!!!!!!!!!!!!!!!!!!!

ivory

试试答几个啊，别给我砖头啊
2.not改为no，no是形容词修饰voice.
3.since改为under
4.favorite改为favor
5.tomatoes改为tomato
7.concern是及物不能有介词with

alecy

1:choose A. Lack of SV. WHen using B,you must add SV.
2:B is wrong. It should be "no voice"."before" is right, ie "before 1910, we had no world wars".
3:I think it is "under" too.
4:B looks quite strange. "favorite" is n or adj, cannot be a verb here.
5:Agree with upstair!
6:B. "much more" -->more
7: "formation"-->formations.Single noun should not be naked.(learned from new oriental school )

[此贴子已经被作者于2003-6-14 0:29:09编辑过]

lucyyyh

1.d 你看看意思酒知道了.
6. which------>what
7. formation------>formations
其他的同意ivory.

britney_gao

4。have 作为“有”讲的时候，是不是可不可以直接加否定词？
5。tomato为甚麽不能用复数？


thanks a lot!!!

ivory

来来，第五题我知道：
当名词修饰名词时，前面的名词不能是复数啊~
第四题的have 在哪里啊？
另外，关于第七题，我好像前几天刚做过的，语法讲解中就是说concern这个问题，还望哪位高人再解答一下啊？
第一题，第四题，第七题都不是很明了。请继续！

britney_gao

错啦，错啦，是第2题的have。
另外，第7题，我觉得应该是is concerned。