beneath和underneath的区别主要是：
1、作名词时的：
beneath：没有名词含义。
underneath：下部，底部。
例句：The underneath of the car is protected by steel panels.
翻译：汽车底面有钢板保护。
2、作介词时的：
beneath：在 ... 之下；被...覆盖；低于...；不值得。
例句：The wreck lay beneath the surface of the water.
翻译：船的残骸就在该水域水面之下。
underneath：在…之下；在下面；在…下面；在…领导或控制下。
例句：We all dived underneath the tables.
翻译：我们都扑到了桌子底下。
3、作副词时：
beneath：在下方；在底下。
例句：Fish shoaled beneath the weirs.
翻译：鱼群聚集在拦鱼栅下。
underneath：在下面，在底下；在下面，在下层。
例句：The roof collapsed trapping about 50 people underneath.
翻译：房顶坍塌，大约50人被埋。
参考资料来源：百度翻译—beneath
参考资料来源：百度翻译—underneath
一、表达意思不同
1、beneath：在……之下；（对某人来说）不够好，不相称；低于，次于
2、underneath：在……底下，在……表象下，下面，底部，下面的，底层的 。
二、词性有不同
1、beneath：可做prep.介词 和n.名词 。
2、underneath：可做 prep.介词、n. 名词 、adv.副词、adj. 形容词 。
扩展资料：
beneath 的同近义词 介绍：neath
读音：英 [niːθ]
prep. （诗、文）在……之下
n. (Neath) （美）内娅特（人名）
短语：
Stuart Neath 司徒·尼斯
River Neath 尼思河
Neath Srey 标签
例句：Then for a dwelling place, far' neath the earth crust.
那么对于居住的地方， 远在地壳之下。
本回答被网友采纳underneath翻译成“下”
词性上：beneath fml
adv.
1. in a lower place; below.在下方；在下面
2. directly under; underneath.在底下, 在正下方
eg. We looked down from the plane at the fields spread out beneath.
我们从飞机上俯瞰下面一片片的土地。
prep.
1. lower than; below 低于；在…下方;
covered or concealed by被…覆盖，被…隐藏：
2. under the force, control, or influence of 在…力量、控制或影响之下
lower than, as in rank or station 低于…, 如在等级或地位上低于
3. unworthy of; unbefitting 不值得；有损于
eg. The earth lay beneath a blanket of snow. 大地被厚厚的白雪覆盖.
The ship sank beneath the waves.轮船沉没于波涛下面。
a village beneath the hill 山下的村庄
to feel the sand beneath one’s foot 感觉到脚下的沙子
She has a lot of sympathy with those beneath her. 她十分同情那些地位比她低下的人。
It was beneath me to beg. 不值得我去乞求.
Such behavior is beneath you. 这种行为与你的身份不符。
Usage under / beneath / underneath / below
1.under is the most common word when one thing is directly under another thing, or covered by it.
beneath can also be used in that way, but may suggest that the two objects are not close to each other; it can also be used in poetic or literary writing.
eg. Under the bed / under blanket
The submarine is waiting, far beneath the ship. 潜艇远远地在那艘船下面等着。
They strolled together beneath the summer moon. 他们在夏夜月光下散布。
2.under ( opposite over ) is used when there is movement from one side to another.
Underneath is used instead of under when a: to give more force to the idea of covering, touching or hiding. B: at the end of the sentence
eg. The letter was pushed underneath the carpet. 信被推到地毯下。
The old mine goes right underneath the city. 老矿井恰好就在城市的下面。
She wears a read coat with a blue dress underneath. 她穿了一件红外套，里面是蓝色的裙子。
3.below ( opposite above ) suggests only that one thing is in a lower position than another
eg. There is a lake below the village, further down the valley.在村庄脚下山谷的另一头有一个湖。本回答被提问者采纳