humus 核心詞議：
n. 腐殖質(zhì)
humus 基本解釋
速記方法
速記技巧
詞源詞根法
來自拉丁語humus，泥土，土壤，詞源同exhume，humble，來自PIE*dhghem，泥土，詞源同chthonic，chameleon，chamomile.可能來自PIE*dhegh，燃燒，詞源同day，fever.詞義演變參照area.
知識擴(kuò)展
中文詞源
humus 腐殖質(zhì)
來自拉丁語humus,泥土，土壤，詞源同exhume,humble,來自PIE*dhghem,泥土，詞源同chthonic,chameleon,chamomile.可能來自PIE*dhegh,燃燒，詞源同day,fever.詞義演變參照area.
中文詞源：
humus 腐殖質(zhì)
來自拉丁語humus,泥土，土壤，詞源同exhume,humble,來自PIE*dhghem,泥土，詞源同chthonic,chameleon,chamomile.可能來自PIE*dhegh,燃燒，詞源同day,fever.詞義演變參照area.
humus
精選例句
1、 The Black Death of 1348 was caused by gradual loss of the humus fertility found under forest trees.
1348年的黑死病是由森林樹木下腐殖質(zhì)的逐漸喪失引起的。
常見考點(diǎn)例句：
- Wind and spring floods erode soils , exposing underlying layers and premiering new compositions of humus and minerals on the surface .
- 風(fēng)沙和水災(zāi)侵蝕著土壤，暴露出地下土層，腐殖質(zhì)新成分及其表面的礦物。
- Soil microorganism plays an important role in the process of nutrient transformation and humus forming in soil .
- 土壤微生物在土壤養(yǎng)分轉(zhuǎn)化與腐殖質(zhì)形成過程中有著重要的作用。
- Soil which contains a lot of humus is more fertile than that which only has a little .
- 富含腐殖質(zhì)的土壤比只含有少量腐殖質(zhì)的土壤要肥沃多了。
- So the topsoil is bits of rock mixed with things that are once alive . These things in the topsoil that were once alive are called humus .
- 可見，土壤是石粒和曾經(jīng)是活體的物質(zhì)的混合物。表土中這種曾是活體的東西叫做“腐殖質(zhì)”。
- Plants grow in soil which has a dark colour . This dark soil is humus .
- 植物生長在黑色的土壤里，這種黑色土壤叫腐殖上。