besides 此外 I am too tired to go; besides, it's too late. 我很累不能去，此外，天色也晚了。 hence 因此 My mother is by herself; hence I must go home now. 我媽媽獨自一人在家，因此我現(xiàn)在必須回去了。 meanwhile 與此同時 Mother went shopping; meanwhile I cleaned the house. 母親去購物，與此同時我打掃房間。 moreover 此外 Bicycling is good exercise; moreover, it won't pollute the air. 騎自行車是一種很好的運動，此外，還不污染空氣。 then 此外，還有 I was there; then there were my mother and father. 我在那兒，此外，我的爸爸媽媽也在那兒。 therefore 因此 I think; therefore I am. 我思故我在。 thus 因此 It's late, and thus you must go. 天晚了，因此你必須走。 下面來看幾個連接副詞在作副詞和連詞時的區(qū)別： However however 作副詞時，可位于形容詞/副詞之前： You couldn't earn much, however hard you worked. 無論你干得多賣力，你都掙不了多少錢。 however 作連詞時通常意為“但是”，可位于它所引導(dǎo)的從句之前或之后，或位于第一個詞或短語之后： I'll offer it to Tom. However, he may not want it. / He may not want it however. / Tom, however, may not want it. 我將提出把這個給湯姆，然而他可能不要它。 但提到兩句意義相反的話時， however意為“但是/仍然/同樣”： They hadn't trained hard, however ( / but / nevertheless / all the same) they won. 他們并沒有刻苦訓練，但/無論如何/仍然/同樣獲勝了。 Otherwise otherwise 作為副詞時常常位于動詞之后： It must be used in a well-ventilated room. Used otherwise it could be harmful. 必須在通風條件好的房間里使用。如不這樣使用則可能是有害的。 otherwise 作連詞時意為“要是不/否則”： We must be early; otherwise we won't get a seat. 我們得早點去，否則我們就沒有座位了。 在英語口語中，這里也可用or： We must be early or(else)we won't get a seat. 我們得早點去，否則我們就沒有座位了。 So so 作程度副詞，位于形容詞/副詞之前： It was so hot that... 天氣太熱了，因而…… They ran so fast that... 他們騎得太快了，因而…… so 作連詞時位于它所引導(dǎo)的從句之前： Our cases were heavy, so we took a taxi. 我們的箱子太重了，所以我們要了輛出租車。 Still & Yet still 和 yet 可作時間副詞： The children are still up. They haven't had supper yet. 孩子們還沒上床睡覺/醒著。他們還沒吃晚飯呢。 still 和 yet 作連詞時位于它們所引導(dǎo)的從句之前。still 意為“雖承認某事/盡管如此”;yet 意為“不管，不顧/同樣/盡管如此”。 It's raining; still I'd like to go. 天下著雨，盡管如此，我還是要去的。 They are ugly and expensive; yet people buy them. 它們既難看又昂貴，但人們還是買。