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1、考点六 情态动词 2 3 第1步 技法探究 一 can could 4 例 Although he is only four he can play the piano 例 Could I borrow your bicycle Yes you can No you can t 例 That can t be Mary for she is in hospital 注意 can有时也用于肯定句 表示理论上的可能性或一时的情况 常译 为 有时会 Mother can be very forgetful sometimes In general Tom is a good man but he c
2、an be very hard sometimes 辨析 5 can与be able to 1 表示能力时 can与be able to意义相同 但是can仅用于一般现在时 及一般过去时 be able to可用于更多时态 2 过去形式的could与was were able to相比 could仅说明具备某种 能力 而was were able to则侧重通过某种努力已经达到某种结果 常 译为 成功做到了 As a boy of ten he can operate the computer skillfully He was able to get out of the room when
3、 the fire broke out 6 二 may might 7 例 Might I make a suggestion 例 This coat may be Peter s He might be doing his homework now 例 May you succeed 注意 may表示请求许可时 其否定回答一般用mustn t may not意为 可 能不 而can t意为 不可能 May I use your computer Yes you may No you mustn t 8 三 will would 例 Will you help me with the lugg
4、age Would you pay me in cash please They asked if we would do that again 例 Oil will float on water 9 辨析 would与used to would表示过去的习惯时仅指动作 而且不与现在作对比 used to表 示过去的习惯动作或状态 而且与现在作对比 说明现在这种动作 或状态已经不存在 In those days he would sit silently at the door for hours He used to swim in the little river when he was
5、a boy 10 四 shall should 11 例 Shall he come in or wait outside 例 You shall remain in your seats until all the papers have been collected 例 You should be careful when doing your job 例 We should arrive home before dark 例 How should I know it 12 五 must have to 1 must表示非常有把握的推测 仅用于肯定句 例 You must be tired
6、 after the long journey 2 表示 必须 一定 must侧重主观 have to侧重客观 例 The children must be back by 4 o clock 3 表示说话者的感情色彩 暗含不耐烦或与自己的愿望相反 意为 偏要 非要 例 If you must leave please do it quietly The baby is sleeping 注意 在回答must的问句时 否定回答通常用needn t或don t have to 13 六 need dare need意为 需要 dare意为 敢 二者都既可作情态动词也可作实义 动词 一般在疑问句和
7、否定句中作情态动词用 在肯定句中作实义 动词用 例 Need he go yesterday No he needn t 例 She dare not go out alone at night 14 第2步 真题试做 1 2019 广东 He began to think that he would save eggs until they were in short supply Then he earn a small amount of money by selling them at a very good price 2 2018 广东 Not only they do simpl
8、e jobs for us such as putting things into boxes but also they can look after babies 3 2017 广东 Now I know that after class activities are important because we learn about responsibility and teamwork could 解析 由前一句可知此处应用could表示过去的能力 can 解析 not only but also 连接两个并列句 由第二个分句的谓语动 词can可知第一个分句中的谓语动词也用can 表现在
9、的能力 can 15 4 2017 北京高考 Samuel the tallest boy in our class easily reach the books on the top shelf 5 2017 天津高考 My room is a mess but I need clean it before I go out tonight I can do it in the morning can 解析 句意 班里最高的男孩塞缪尔可以很容易地够到书架顶部的 书 根据句意 应填can 能够 可以 needn t 解析 由后面的 I can do it in the morning 可知 此
10、处表示 没必要今 晚打扫 故填needn t 不必 16 第3步 模拟通关 1 2019 广东佛山五校联考 So you pay attention to sleeplessness 2 2019 广东肇庆八校联考 Since you have such good preparations there not be any problem about passing the coming job interview must should 解析 根据语意可知 此处为给别人提出建议 所以填must should 表 示 务必 应当 should 解析 根据since提供的原因 准备充分 可以判断
11、出 此处表示 按理 说应该发生 的 故本空填情态动词should 17 3 2019 广东中山五校联考 It has been accepted that all the students put on masks before going to school in case they are infected with flu virus shall 解析 在第三人称作主语的陈述句中 表示规定 规则 用shall 4 2019 广东深圳二诊 There was a little mouse staying at home all day I go out even at night daren t 解析 根据even at night表示的递进意义判断 此处表示 不敢 意义 故填情态动词daren t 5 2019 广东揭阳调研 I think something have happened to Jill must 解析 根据I think 判断 所填词表示一种非常有把握的肯定推测 故 用情态动词must
