考研英语语法知识点汇总思维导图中

例句：Weget up very early to catch the first bus.

例句：The students didn’t stop talking until the teacher came in.

例句：It makes no difference what you read or study ifyou can’t remember it. 如果你记不住，那么你读什么或者学什么都不重要了。

例句：There areseveral things to consider when buying fresh foods. 当购买新鲜食品时，有几个事情要考虑。

例句：Working hard,you will succeed. 如果努力工作，你将会成功。

例句：All night longhe lay awake, thinking of the problem. 他整夜躺在床上睡不着，思考着那个问题。

例句：Please answerthe question using another way. 请用另一种方法回答问题。

例句：Not knowingher address, I can’t write to her.由于不知道她的地址，我没法给她写信。

例句：Possessing a car gives a much greater degree ofmobility, enabling the driver to move around freely. 拥有汽车使机动程度更高，使司机能自由自在地往来各地。

例句：Although working from morning till night his fatherdidn’t get enough food.虽然他父亲从早到晚拼命干，但是还是挣不够吃的。

对现在、将来情况的肯定推测：must+动词原形

对现在、将来情况的否定推测：can’t +动词原形

对现在、将来情况的可能推测：may/might +动词原形

例句：What is he doing? He must be sleeping./He can’tbe reading./ He may/might be reading but I’m not sure.

对过去情况的肯定推测：must+have done sth.

对过去情况的否定推测：can’t +have donesth.

对过去情况的可能推测：may/might +have done sth.

例句：It must / may / might / have rained last night. Theground is wet. The door is locked. He cannot / may ( might ) not havebeen at home.

例句：Hardly had she gone out when a student came tovisit her. 她刚一出门，一个学生就来拜访她。

例句：No sooner had the game begun than it began to rainheavily. 比赛刚一开始就下起了雨。

例句：Time permitting, we will go for a picnic tomorrow.(=f time permits, we will go for a picnic tomorrow.) 如果时间允许，我们明天会去野餐。

例句：The girl was so excited as to shout herself hoarse.那个女孩兴奋得喊哑了嗓子。