astronaut 宇航员

astrophysics 天体物理学

astrology占星学；占星术

astronomer n.天文学家

astronomical adj.天文学的;天文的

【词析】音析:字母a发。

义析:to vary between two particular amounts, sizes, etc. including others between them

【典句】She has had a number of different jobs, ranging from chef to swimming instructor.

她做过许多不同的工作，从厨师到游泳教练。

【拓展】to rang in size/length/price from A to B型号/长度/价格在A到B之间变动

rang from...to...从......到......

range between...and...在......和......之间

【词析】音析:字母组合oa 发。

义析:to stay on or near the surface of a liquid and not sink; to make sth. move on or near the surface of a liquid

【典句】Can you float on your back?

你能仰浮吗？

They float the logs down the river to the towns.

他们把圆木沿河漂流至城镇。

【拓展】floating adj.不固定的；流动的;浮动的

a floating population流动人口

【词析】音析:字母o发。

形析:单音节词可根据发音记忆词形

义析:a small area of still water, especially one that is artificial

【典句】He was sitting near the fish pond.

他坐在鱼池边上。

【拓展】across the pond 在大西洋彼岸

【词析】音析:ea组合发; ful发[fl]。

形析:peace (n.和平)+-ful(形容词后缀)

义析: quiet and calm; not worried or disturbed in anyway;

not involving a war, violence or argument;

trying to create peace or to live in peace