阳光、灯、影、衣、冒in，即在阳光下，在灯下，在树阴下，穿衣、着装、冒雨等都要用in.

　　例：Don’t read in dim light.

　　切勿在暗淡的灯光下看书。

　　They are reviewing their lessons in the bright light.

　　他们在明亮的灯光下复习功课。

　　They are sitting in the shade of a tree.

　　他们坐在树阴下乘凉。

　　a prisoner in irons

　　带着镣铐的囚犯

　　He went in the rain to meet me at the station.

　　他冒雨到车站去接我。

　　The poor dressed(clothed)in rags in old society.

　　旧社会穷人们衣衫褴褛。

　　以及：in the bright sunlight在明亮的阳光下

　　a merchant in disguise乔装的商人

　　the woman in white(black，red，yellow)穿着白(黑、红、黄)色衣服的妇女

　　in uniform穿着制服

　　in mourning穿着丧服

　　in brown shoes穿着棕色鞋

　　in his shirt sleeves穿着衬衫

　　将来时态in……以后

　　例：They will come back in 10 days.

　　他们将10天以后回来。

　　I’ll come round in a day or two.

　　我一两天就回来。

　　We’ll be back in no time.

　　我们一会儿就回来。

　　Come and see me in two days’time.

　　两天后来看我。(从现在开始)

　　after……(从过去开始)

　　小处at大处in

　　例：Li and I arrived at Heishan county safe and sound，all is well. Don’t worry.李和我平安地到达黑山县，一切很好，勿念。