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A2 English Grammar Key Concepts
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如何表达客观必要性,比如:我得早起
用have to + 动词原形: I have to get up early
Oops!
Okay!
如何表达时间关系,比如:晚上七点,在夏天,在星期一;使用时间介词 at/in/on:at 7pm
in summer
on Monday(at night 为固定搭配)
Oops!
Okay!
如何询问别人是否具备某种能力,比如你会游泳吗?
用情态助动词:Can you...?
Oops!
Okay!
如何表达平时的习惯,客观真理,比如:太阳从东方升起
使用一般现在时态,即主语 + 动词原形(三单加 -s/es):The sun rises in the east.(第三人称单数变化规则:sh/ch/o/x 结尾加 -es)
Oops!
Okay!
如何表达“某个地方有什么东西”, 比如:桌上有几本书
用 there be 句型
Oops!
Okay!
如何表达主观认为的必要性,比如:你必须戴头盔
用must + V原形: You must wear a helmet.
Oops!
Okay!
如何提出建议,比如:你应该我喝水
用should + 动词原形:You should drink more water.
Oops!
Okay!
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