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難點(diǎn)形成原因:
1.對在句中作時間、條件、原因還是別的狀語不是很清楚。
2.分不清何時用現(xiàn)在分詞、何時用過去分詞。
解決辦法：
1.理解分詞作狀語時可以轉(zhuǎn)換成相應(yīng)的狀語從句。
2.分清何時用現(xiàn)在分詞、何時用過去分詞。
用法講解：
1. 分詞或分詞短語作狀語時，可以表示時間、原因、讓步、條件，方式或伴隨狀況。通常可轉(zhuǎn)換成相應(yīng)的狀語從句;表示方式或伴隨狀況時可以轉(zhuǎn)換成并列句或非限制性定語從句。例如：
Put into use in April 2000 (=When it was put into use in April 2000), the hotline was meant for residents reporting water and heating supply breakdowns. 分詞短語作時間狀語
Blamed for the breakdown of the school computer network (=Because she was blamed for the breakdown of the school computer network), Alice was in low spirits. 分詞短語作原因狀語
Given time (=If he is given time), he’ll make a fist-class tennis player. 分詞短語作條件狀語
We often provide our children with toys, footballs or basketballs, thinking that all children like these things. (= and think that all children like these things.) 分詞短語作伴隨狀語
2. 有時為了強(qiáng)調(diào)，分詞前可帶when, while, if, though, as if, unless等連詞一起作狀語，以便使句子的意思更清楚、更連貫。例如：
When comparing different cultures, we often pay attention only to the differences without noticing the many similarities.
Though tired, he still continued reading.