1.mortgage n.抵押贷款(a loan of money which you get from a bank in order to buy a house or other property);y．抵押(use house or land as a guarantee in order to borrow money)
词根记忆：mort(死亡)+gage(抵押品)--用抵押品使债务死亡--抵押
例：Interest rates for home mortgages are expected to rise sharply.
2.mosaics n．马赛克(a surface decoration made by inlaying small pieces of variously colored material to form pictures or patterns)；嵌合体(an organism or one of its parts composed of cells of more than one genotype)
发音记忆：mo（马）+saic(赛克)+s--马赛克
例：There is no single region to which all the species depicted in the Sepphoris mosaics are native.
3.motsque n．清真寺(a Moslem house of worship)
发音记忆：和“莫斯科”发音颇像
例：The Turkish sultan established a mosque in the building and used the Acropolis as a fortress.
4.mosquito n．蚊子
发音记忆：“貌似黑头”--像鼻子上的黑头--蚊子
例：I left the picnic early because there were too many mosquitoes.
5.moth n．蛾：蛀虫(typically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae)
发音记忆：“莫死”--不畏死--飞蛾( moth)扑火哪畏死
例：Each species of moth has an optimal body temperature for effective flight.
派生词：mothy(a．多蛾的；虫蛀的)
6.motion n.运动(movement)；提议（尤指会议提案）(proposal)
词根记忆：mot(动)+ion--运动
例：Those objects are in motion.//Judge Bonham denied a motion.
7.motivate v.激发，刺激(to provide with a motive)
词根记忆：mot(动)+iv+ate(使…)--激发
例：In order to motivate our advertising agency to perform better, we should start basing the amount that we pay it on how much total profit we make each year.
派生词：motivation(n．动机；积极性)
同根词：promote(n.推动，促进)
8.mound n．土丘，土墩(a small hill)
和ground (n.地面)一起记：mound on the ground
例：Archaeologists are excavating in a middle and a lower layer of a large mound.
9.mount v.增加，增长(to rise, ascend)
圆本身为词根：升，上
例：The national debt continued to mount throughout the decade.
派生词：mounting(n.衬垫)