1 ____widely used in the chemical industey ,sodium carbonate is prinicipally consumed by the industey.A) DespiteB) Though2 Helium is not flammable and, next to hydrogen, is____A)kmown the lightest gasB)the lightest gas known

熱心網(wǎng)友

１．選Ｂdespite不管，盡管．是介詞,后加名詞,或動(dòng)名詞，一般不接過(guò)去分詞的形式 in despite of　固定搭配，不管，盡管eg。Despite the bad weather,they had a good time。though是連詞,雖然,盡管，后接句子．widely used in the chemical industey 在這里是省略了主語(yǔ) it is/sodium carbonate is ,因?yàn)橹骶浜蛷木涫峭恢髡Z(yǔ)，所以從句的主語(yǔ)可以省去eg。Though it was cold,they had a good time。 though (Tom was)young,Tom was good at doing this work。這句話的意思是，雖然碳酸鈉被廣泛應(yīng)用于化學(xué)也，但它主要在工業(yè)中使用２．選Ｂknown是過(guò)去分詞做后置定語(yǔ)，也可以看做省去了which is,被知道Helium is not flammable and, next to hydrogen, is the lightest gas which/that is known。如選Ａ　必須加kmown as the lightest gasknow as。。。固定搭配，稱為，被認(rèn)為。

熱心網(wǎng)友

B, Despite is prep Though (it is) widedly XXX. Hehe, the (it is) is omitted.B, 可以把A改成 IS KNOWN AS THE XXX, A will be right.

熱心網(wǎng)友

第一題逗號(hào)之前是過(guò)去分詞做狀語(yǔ)所以選副詞despite，though是連詞，應(yīng)該連接句子。第二題known是過(guò)去分詞做后置定語(yǔ)，完整的說(shuō)法：the lightest gas which is known

熱心網(wǎng)友

b 從句子意思講是雖然。。。但是。應(yīng)該是Bb is sth. known 是配合。如果用is known 要加as is know as sth.

熱心網(wǎng)友

第一題主要區(qū)分詞義,despite是介詞,所以其后要接名詞或代詞而though后接句子.第二題選Bknown是后置定語(yǔ).