1.humidity n．湿度，湿气(moistness, dampness)

词根记忆：来自humid(a．潮湿的：湿润的)

例：Museums that house Renaissance oil paintings typically store them in environments that are carefully kept within narrow margins of temperature and humidity to inhibit any deterioration.

同根词：humidify(矿使潮湿)

2.hurricane n．飓风

联想记忆：hurri(看作hurry匆忙)+cane --来去很匆忙的风--飓风

例：The hurricane is approaching the Atlantic coast.

3.husk n．外皮( an outer layer)；v．削皮(to strip the husk from )

例：That discovery roughly coincided with the introduction of a wheat variety that was preferable to previous varieties because its edible kernel could be removed from the husk without first toasting the grain.

派生词：husky(a．声音嘶哑的；有壳的)

4.hybrid a．杂交的，杂种的(cross-bred)

例：the wheat-rye hybrid triticale小麦和黑麦的杂交麦，黑小麦

5.ydrogen n．氢

词根记忆：hydro(水)+gen(产生)--能合成产生水的--氢

注意：oxygen(n.氧)

例：hydrogen bomb氢弹

6.hydroponic a．溶液培养的，无土栽培的(the growing of plants in nutrient solutions without soil)

词根记忆：hydro(水)+pon(放)+ic--放置在水中让其生长的--溶液培养的

例：a hydroponic spinach无土栽培的菠菜

派生词：hydroponically( ad.溶液培养地)

You never know what you can do till you try.
除非你亲自尝试一下，否则你永远不知道你能够做什么。

—(Frederick Marryat, British novelist)
—英国小说家马里亚特