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看例子:1. she lacks confidence.她没有信心. (lack作及物动词,用于肯定句中.)2. she doesn't lack for confidence. 她不缺乏信心.(lack作不及物动词,用于否定句中.)3. she didn't attend the party for lack of confidence.她没有参加这个聚会,因为她没有信心.(lack作名词,与of搭配使用.注意:名词lack绝对不能与for连用.)4. she is lacking in confidence. 她没有信心.(lacking作形容词用,前面有系动词,后面与in搭配使用.)

lack可以用作动词或名词,lacking用作形容词.lack和lacking用法如下: 1)lack用作名词:(for) lack of (因)缺乏 He showed a complete lack of confidence. (他显得毫无信心.) The case was dismissed for lack of evidence. (因缺乏证据,

Lack缺乏,没有 Lack+of+名词: The plants died for lack of water. Lack+名词: We lack the strength to walk any further. 短语: be lacking:欠缺、缺: Money was lacking to complete the building. Be lacking in缺乏(某种品质、特点等),不够: He is not lacking in intelligence. Lack for 缺(多用于否定句) She does not lack for friends.

lack of +名词 通常是表明缺少某种品质 例如 lack of confidence lack+直接加缺少的东西 物质品质都可以 lack for 加金钱啊什么的物质的

n.(常与of连用)缺乏;需要 there is no lack of vegetable. 蔬菜不缺.the lack of rain aggravated the serious lack of food. "由于干旱少雨,缺粮问题更加严重." vt.是及物动词,直接接所缺乏的东西就可以:缺乏;不足;没有 he lacks courage.

你记住这个就可以,lack既可以是动词,也可以是名词.动词时,为及物的,所以直接加名词,就是 lack+ sth就是缺乏什么什么.They lack money.名词时,一般用这个词组 a lack of sth.意思也是缺什么.eg.There is a lack of water in that city.

lack 作动词时,后面直接加名词,没有任何介词,所以第一道题应该只能选A.lack 作名词时,有词组(the) lack of sth. 表示缺乏某物,此时lack不可数(因为表示抽象概念),所以第二道题应该只能选A.而lacking是形容词,并且有词组:be lacking in sth. 也表示缺乏某物,可是第三道题可以填“lacking in”,可惜没有.那么只能用动词lack后面直接加名词这种形式,而且,由于无主语,因此,要用v.ing形式,所以本题应选C.

1.lack sth. lack做动词;2.be lacking in. lacking为形容词3. lack of.. 整体可以做主语或宾语

首先:lack是及物动词,后面直接加宾语,即:lack sth.接着:lack作为名词,就是用(a) lack of sth 最后:lacking作为形容词,用法就是:be lacking in That's all.

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