cover... with 用……蓋住……

cover 30 pages 讀三十頁(yè)

be covered with... 用……覆蓋

cover an area of… 占地面積為，••…

cover 2,000 li 走了兩千里

cover a conference 報(bào)道會(huì)議

under cover 隱藏著

under the cover of 在……的掩護(hù)下，趁著

The book with a hard cover is more expensive. 精裝書(shū)比較貴

Flood water covered the fields by the river. 洪水淹沒(méi)了河邊的田地。

Rubble covered the pavement．人行道上鋪了碎石塊。

The chief editor sent a reporter to cover the event. 主編派去報(bào)道這一事件

Her lectures covered the subject throughly. 她的演講對(duì)這個(gè)問(wèn)題闡述得很透徹

The Red Army men covered 25，000 1i during the Long March.

長(zhǎng)征中，紅軍走過(guò)了兩萬(wàn)五千里

〔辮析〕 discover，uncover, find out

discover指“發(fā)現(xiàn)”某種本來(lái)存在、而以前未被發(fā)現(xiàn)的事物或不為人所知的東西。

find out常用來(lái)指“弄明白、搞清楚、查出（某一真相）”，作“發(fā)現(xiàn)”講時(shí)，是指發(fā)現(xiàn)一種無(wú)形而隱藏的東西。

uncover還可表示“發(fā)現(xiàn)、揭露、暴露”等意思，一般用于貶義，其賓語(yǔ)常常是：relic遺物、古跡，plot陰謀、圈套、（秘密）計(jì)劃，conspiracy共謀、陰謀

Do you know who discovered America? 你知道是誰(shuí)發(fā)現(xiàn)美洲的嗎？

Think it over and you‘ll find out the answer to the question. 仔細(xì)想想，你就會(huì)找到問(wèn)題的答案

He uncovered the famous picture. 他揭開(kāi)了那幅名畫(huà)的覆蓋物