【#第一文档网# 导语】以下是®第一文档网的小编为您整理的《现在进行时的结构》，欢迎阅读！
一■、概念 现在进行时表示说话时正在进行或发生的动作,也可表示当前一段时间内的活动 或现阶段正在进行的动作. 结构：助动词 be ( am / is / are ) +现在分词. 二、现在分词的构成： 1 .大多数动词后可在动词后直接加一ing . Eg： carry-carrying , catch —catching , enjoy —enjoying hurry-hurrying ,do —doing , re drink —drinking , ad-reading , think-thinking 2 .如果动词以一e3. 结尾,那么去掉-e ,再加一ing , 如 come-coming , have-having , make-making,ride —riding , write-writing,take-taking,use-using 如果动词只有一个元音字母,而其后跟有一个辅音字母时,将此辅音字母 双写,再加 -ing 如： hit — hitting,let-letting , put-putting,run —running , sit-sitting 4.如果动词有两个音节,且重音在第二个音节上,那么末尾的辅音字母双写,加 — ing, 如： forget-forgetting , prefer-preferring,travel —travelling swim-swimming 5. 以-ic 结尾的动词,应先把 -ic 变为 一ick ,再加 一ing , eg： panic/panicking 但 lie/lying ,die/dying ,tie/tying 是特殊变化要 记住. 三、句型结构： 1.现在进行时的肯定形式、否认形式、疑问形式及其答复,所有变化都表达在助 动 词 be ( is / am / are ) 上. 1)现在进行时的肯定形式：主语 +be (am/ is/are)+doing+ 其他成 分 I am singing . They are writing . 2)现在进行时白否认形式：主语+be (am/ is/are)+not +doing+其 他 I am not singing . 3) They aren' t writing . Am I singing ? Yes一般疑问句及答复：be (am/ is/are)+ 主语+doing+其他成 分 ,you are . / No , you aren' t Are they writing ? Yes , they are . / No , they aren' t 4)特殊疑问句及答复：特殊疑问词 +be (am/ is/are ) +主语+doing+其他成 分What are you doing ? We are playing (要求就提问内容具体回 答). 2 . 缩写形式如下： I am—- —I'm You are-- -You're He is -------------- -He's She is--- She' s It is ------------- -It's We are--- We re They are— -—They" re 四.用法： 1 .表示现在( 指说话人说话时) 正在发生的事情.往往与 at the moment just 等副词连用,以示强调. We are waiting for you. What are you doing? Some one's knocking at the door. 2 .正在进行着的动作可视为未完成的动 作： He' s talking to his friends in the classroom. 可 now, 用 still 3 一词强调动作的持续性 He's still talking to his friends in the classroom. . 表示一段时间内重复性的动作,说话时动作未必正在进 行. Mr. Black is writing another article. 4 .现在进行时可用来表示不会长期发生的动作或情况,或被认为在短期内正在进 行的动作或存在的状 态 What's your brother doing these days? He's studying Engli sh at Oxford University. 5 .现在进行时也可以用来表示当前的动向： People are becoming more and more beautiful these days. 表示渐变的动词有 ：become, turn,get,grow,run,go , begin 等. The leaves are turning brown. It's getting colder and colder. 7.与always,constantly,forever 等词连用,表示反复发生的动作或持续存 在的状态,往往带有说话人的主观色彩. 6. You are always changing your mind. 一.用现在进行时完成以下句子： 1。 2。 3。 4。 5。 What 7。 8。 9。 11。 12 13。 m 15。 The naughty boy (swim) in the river. 14。 What he(mend)? He(mend) a car. These boys (play ) tennis on the playground. My mother (cook) in the kitchen. _______________ the boy _________________________________ (write) his homework? Look! These butterflies _______________________________________ (fly) in the sky Listen! The girl (sing) in the next roo We can' t help you,because we (have )classe s you(sit ) in the boat ? he(talk) with me? We(play) you(do) ? football now o you(fly) a kite ? Yes, . 6。 I(sing) an English song. 10。 二.选择 1 . Look Lucy is ___________________________ a new bike today A. jumping B. running C riding D takeing 2 The children __________________________ football A. is playing B. are playing C. play the D. play a 本文来源：https://www.dywdw.cn/02e9d3132179168884868762caaedd3383c4b56a.html
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2023-09-18
