考研英语中常见的介词包括：
时间介词
at：表示在某个时间点或某一段时间内，例如：at 8 o'clock, at night, at the beginning of the year
on：表示在某个具体日期或某一天，例如：on Monday, on the 1st of January, on Christmas Day
in：表示在较长时间段内，例如：in 2020, in the morning, in the past
before：表示在某个时间点之前，例如：before the meeting, before the deadline
after：表示在某个时间点之后，例如：after the meeting, after the deadline
during：表示在某个时间段内，例如：during the meeting, during the holiday
地点介词
in：表示在某个空间内部，例如：in the box, in the room, in the city
on：表示在某个物体的表面，例如：on the table, on the wall, on the floor
at：表示在某个具体位置，例如：at the door, at the corner, at the bus stop
above：表示在某个物体的上方，例如：above the table, above the ceiling, above the clouds
below：表示在某个物体的下方，例如：below the table, below the ceiling, below the ground
between：表示在两个物体或两个地点之间，例如：between the two cities, between the two countries
beside：表示在某个物体的旁边，例如：beside the door, beside the window, beside the car
方向介词
to：表示方向或目的地，例如：go to the store, go to the doctor, go to school
from：表示来源或起点，例如：come from the city, come from the country, come from the family
up：表示向上，例如：go up the stairs, go up the mountain, go up the ladder
down：表示向下，例如：go down the stairs, go down the mountain, go down the ladder
through：表示从一端到另一端，例如：go through the tunnel, go through the forest, go through the process
across：表示横过或越过，例如：cross the street, cross the river, cross the field
方式介词
with：表示使用某种工具或方式，例如：write with a pen, eat with a fork, play with a ball
without：表示没有某种工具或方式，例如：work without a machine, travel without a map
by：表示通过某种方式或手段，例如：travel by car, travel by air, travel by train
关系介词
in relation to：表示与某事物有关联，例如：in relation to the issue, in relation to the company
in terms of：表示从某个角度来看，例如：in terms of time, in terms of cost, in terms of health
in addition to：表示除了已经提到的内容之外，例如：in addition to the books, in addition to the money
这些