记忆方法
【de-,不,非,使相反。-tect,覆盖,词源同deck,tile.即揭开覆盖,查明】
双解例句
小知识
The verb detect means to discover or observe the existence of something. If you walk into your house and detect the odor of burnt food, you can deduce from the evidence that you will be going out to dinner tonight!
The verb detect comes from the Latin word detegere, which literally means “to uncover” — or more figuratively, to discover. You may detect the presence of a new dog in your house if you note a water bowl, chew toys, and grooming tools. Of course, the large woofing beast that greeted you at the door with a wagging tail might be a big clue as well.
实用短语
单词用法
discover:普通用词,指发现本来存在,但示被认识的事物、真理或情况。
find:普通用词,可指偶然发现,也可指经过寻找后得到或重新获得已失去的东西。强调动作的结果。
detect:正式用词,强调经过周密观察或研究而有所获得和发现,尤指发现有意隐藏之物。
ascertain:较正式用词,指有意搜寻与发现。
词根词缀
词根: tect
=cover,表示”盖上,掩护”
adj.
undetected 未被发现的, 未被识破的un没有,未+detect[v.察觉,发觉,侦察,探测]+ed……的→adj.未被发现的, 未被识破的
protective 给予保护的, 保护的protect保护,保卫+ive表形容词→adj.给予保护的, 保护的
n.
detection 察觉,发觉;侦察detect[v.察觉,发觉,侦察,探测]+ion表名词→n.察觉,发觉;侦察
detective 侦探detect[v.察觉,发觉,侦察,探测]+ive人→n.侦探
protection 保护,警戒protect[v.[from]保护,保卫]+ion表名词→n.保护,警戒
protector 保护者protect保护,保卫+or人→n.保护者
protectory 保护者,育幼院,儿童教养院protect[v.[from]保护,保卫]+ory场所→保护少年儿童之地
v.
detect 察觉,发觉,侦察,探测de去掉+tect盖上,掩护→把盖上的打开
protect [from]保护,保卫pro在前面+tect盖上,掩护→在前面掩护→保护