人教版高中英語選修七unit2robotsgrammar同步講練(更新版)
【正文】 完成時 had + been +過去分詞 含有情態(tài)動詞 情態(tài)動詞 + be +過去分詞 ★ 動詞不定式的被動式 【 語境展示 】 觀察下 面各 句中 動詞不定式 的 被動式的 用法，然后加以總結(jié) 。 is believed 2. been declared。 to be held 4. to be left 5. to be built。動詞不定式的被動形式有兩種： ① 一般式的被動式： to be done（ 句 1— 句 6）； ② 完成式的被動式： ________ （ 句 7） 。英語的語態(tài)分為主動語態(tài)和被動語態(tài)。 1. The book ________ (write) now and ________ (believe) to be popular with young children. 2. It has ________ (declare) that there are five students ________ (send) abroad for further study. 3. I remember ________ (tell) about the meeting ________ (hold) next month. 4. The child is happy ________ (leave) alone at home at weekends because he can play puter games freely. 5. There is a primary school ________ (build) soon in the village so a lot of building materials ________ (bring) here day and night. II. 用 被動語態(tài)完成 下
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