一般语体与正式语体

普通英语词科技英语中的非技术词（一般语体）（正式语体）about approximately

ask inquire

begin commence

buy purchase

carry bear

change transform

cheap inexpensive

end conclude

finish complete

get obtain

give accord

have possess

method technique

obtainable available

avoid circumvent

quick rapid

say remark

similar identical

touch contact

try endeavor

use employ或utilize

put place

fire flame

happy excited

careful cautious

care caution

heart center

enough sufficient

by which whereby

in which wherein

in the end eventually

（2）一些短语动词往往由正式动词（通常来源于拉丁语）替代，表现出科技英语行文要求精练，表达上力避冗繁。

例如：

短语动词正式动词

turn on complete

take in absorb

push in insert

push down depress

put up erect

put together aggregate

put out extinguish

put in add

wear away erode

take away remove

send for summon

use up consume；exhaust carry out perform come across encounter make up invent

put up with tolerate

go with accompany

fill up occupy bring out introduce break up rupture

look at（over）examine find out discover drive forward propel keep up maintain turn upside down invert

set fire（light）to ignite

ma ke…weak weaken take…into places dismantle turn…i nto liquid liquefy

be made up of be composed o f