中考網(wǎng)整理了關(guān)于2022年中考英語考點：助動詞be，希望對同學(xué)們有所幫助，僅供參考。

　　助動詞be

　　助動詞be，無詞義，輔助主要動詞一起在句中作謂語動詞。用法如下：

　　1. be+doing：構(gòu)成進(jìn)行時態(tài)，有現(xiàn)在和過去兩種進(jìn)行時態(tài)。如：

　　The girls is reading and copying the new words now.

　　Young Tom was always asking questions and trying out new ideas.

　　2. be+done：構(gòu)成被動語態(tài)(主語是動作的承受者，done必須是及物動詞)。如：

　　Tea is grown in my hometown.(一般現(xiàn)在時的被動語態(tài))

　　This building was built three years ago.(一般過去時的被動語態(tài))

　　Our classroom has been cleaned and tidied already.(現(xiàn)在完成時的被動語態(tài))

　　How could this kind of cakes be made in your home?(含情態(tài)動詞的被動語態(tài))

　　That is a day never to be forgotten.(動詞不定式的被動語態(tài))

　　3. be+going to do，表示"打算或?qū)⒁�做某�?quot;，be有現(xiàn)在和過去兩種形式。如：

　　We are going to plant trees in the park.

　　I didn't know if she was going to come here.

　　4. be+to do，表示"按計劃安排將要做某事"。如：

　　The new shop is not to be opened till next Monday.

　　One night an angel came to Mary and told her that she was to have this special boy.

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　　2022年中考數(shù)學(xué)知識點考點匯總

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