记忆方法
1. ex- "out" + tend-.
2. 含义：stretch out, lengthen.
2. 含义：stretch out, lengthen.
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词族 · extend
中文词源
extend 延长
ex-, 向外。-tend, 延伸，词源同tend, tense.
英语词源
- extend
-
extend: [14] Etymologically, to extend something is to ‘stretch it out’. The word comes from Latin extendere, a compound verb formed from the prefix ex- ‘out’ and tendere ‘stretch’ (source of English tend and tension and a wide range of derivatives, including contend, intend, and pretend). English standard derives from its Old French descendant estendre.
=> contend, intend, pretend, standard, tend, tension - extend (v.)
- early 14c., "to value, assess," from Anglo-French estendre (late 13c.), Old French estendre "stretch out, extend, increase," transitive and intransitive (Modern French étendre), from Latin extendere "stretch out, spread out; increase, enlarge, prolong, continue," from ex- "out" (see ex-) + tendere "to stretch" (see tenet).
Original sense in English is obsolete. From late 14c. as "lengthen or extend in time," also "straighten" (an arm, wing. etc.). Meaning "make longer and/or broader in space" is from early 15c., as is intransitive sense of "cover an area, have a certain extent in space;" sense of "expand, grow distended" is from 1753. Related: Extended; extending.
权威例句
- 1. The new territory would extend over one-fifth of Canada's land mass.
- 这块新领土将会使加拿大陆地面积扩展1/5以上。
- 2. This year they have introduced three new products to extend their range.
- 今年他们发布了3种新产品，以扩大产品范围。
- 3. It might be possible to extend the technique to other crop plants.
- 也许可以将这种技术应用于其他农作物。
- 4. The high-speed train service is planned to extend from Paris to Bordeaux.
- 高铁拟从巴黎延伸至波尔多。
- 5. The caves extend for some 18 kilo-metres.
- 那些洞穴深约18公里。
词语辨析
【raise, extend, increase, expand, inflate, add】
raise: 提高
extend: (程度、长度)
increase: 增加
expand: （尺码，数量，稳定性）扩大，增加，提高
inflate: 膨胀，鼓气，涨价
add: 增加，添加
【enlarge, extend, stretch, prolong, inflate, expand, increase, multiply, lengthen, add, augment, amplify】
enlarge: 放大（照片）
extend: 使…（在空间或时间上）更大，更长；伸长，伸展，延展；舒展（肢体），extend sth
stretch: vt 拉长，撑大；绵延，延续
prolong: 人为的延长时间
inflate: 使（轮胎、气球等）充气，膨胀，inflate sth (with sth)
expand: 使…变大，扩大，扩展，expand sth into sth
increase: 增加，增大（数目、数量、体积等），increase sth from…to…
multiply: 成倍的增加
lengthen: 指自然的延长时间或空间
add: 加，添加，add sth to sth
augment: vt 增多，增大，augment sth
amplify: 特指音量，电流等的扩大
raise: 提高
extend: (程度、长度)
increase: 增加
expand: （尺码，数量，稳定性）扩大，增加，提高
inflate: 膨胀，鼓气，涨价
add: 增加，添加
【enlarge, extend, stretch, prolong, inflate, expand, increase, multiply, lengthen, add, augment, amplify】
enlarge: 放大（照片）
extend: 使…（在空间或时间上）更大，更长；伸长，伸展，延展；舒展（肢体），extend sth
stretch: vt 拉长，撑大；绵延，延续
prolong: 人为的延长时间
inflate: 使（轮胎、气球等）充气，膨胀，inflate sth (with sth)
expand: 使…变大，扩大，扩展，expand sth into sth
increase: 增加，增大（数目、数量、体积等），increase sth from…to…
multiply: 成倍的增加
lengthen: 指自然的延长时间或空间
add: 加，添加，add sth to sth
augment: vt 增多，增大，augment sth
amplify: 特指音量，电流等的扩大