take off起飞 land 着陆

The airplane will take off at 9a.m.

The airliner(飞机)landed safety.

up and down

He looked at me up and down.

rescue work

Rescue a child from drowning/deep water.

look like

He looks like a doctor.

speed through the air

The train speeds through the tunnel.

far away

bring /brought take

Spring brought weather and flowers.

Take this one away and bring me another.

现在完成时构成

规则动词变化：  +ed/y-ied/双写+ed

常用时间状语：already/lately/recently/so far /up to now /since /for

定语从句常用引导词：when where why(reason)