1
extend sth
后接名词，表示扩展或延伸某物。
We plan to extend the building.
我们计划扩建这栋建筑。
提供；给予
extended — past of extend
先理解核心含义，再看它在真实句子里的用法。
提供；给予
make available or provide something such as help, an invitation, or a welcome
We plan to extend the building.
我们计划扩建这栋建筑。
扩大范围；延伸。
To increase in extent.
占据一定范围；覆盖一定空间。
To possess a certain extent; to cover an amount of space.
使扩大；使延伸。
To cause to increase in extent.
延长；使持续更久。
To cause to last for a longer period of time.
extend
Base
原形
extends
3rd person
第三人称单数
extending
-ing
现在分词
extended
Past
过去式
extended
Past participle
过去分词
The road extends for miles.
这条路延伸数英里。
We extended our stay.
我们延长了停留时间。
They are extending the deadline.
他们正在延长截止日期。
She has extended an invitation.
她已发出邀请。
规则变化
The city decided to extend the bike path along the river.
该市决定沿河延长自行车道。
The teacher extended the assignment deadline by one week.
老师把作业截止日期延长了一周。
They plan to extend the kitchen to create more space.
他们计划扩建厨房，以腾出更多空间。
后接名词，表示扩展或延伸某物。
We plan to extend the building.
我们计划扩建这栋建筑。
表示空间或范围延伸至某处。
The forest extends to the river.
森林一直延伸到河边。
表示向某人提供某物，如邀请、帮助等。
The company extended an offer to her.
公司向她提供了录用通知。
Not this
The extend of the damage is huge.
Use this
The extent of the damage is huge.
错误地使用了动词形式'extend'作为名词。'extent'是名词，表示'程度'。应使用名词形式。
Not this
We extended the meeting for 30 minutes.
Use this
We extended the meeting by 30 minutes.
表示延长时间时，介词'by'用于具体增加的时间长度，'for'通常用于持续时间。'extend by'表示增加的量。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
发出邀请
They extended an invitation to all employees.
他们向所有员工发出了邀请。
延长截止日期
The teacher extended the deadline for the assignment.
老师延长了作业的截止日期。
伸出手
He extended his hand to greet me.
他伸出手向我打招呼。
扩大范围
The company extended its product range.
公司扩大了产品范围。
提供信贷
The bank extended credit to small businesses.
银行向小企业提供信贷。
延长合同
They decided to extend the contract for another year.
他们决定将合同再延长一年。
伸出橄榄枝（表示愿意和解）
After years of conflict, the president extended an olive branch to the opposition.
经过多年的冲突，总统向反对派伸出橄榄枝。
表达哀悼/慰问
We extend our condolences to the family of the victim.
我们向受害者家属表示哀悼。
伸出友谊之手
The new manager extended the hand of friendship to all employees.
新经理向所有员工伸出了友谊之手。
Use extended naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记"extend"为"ex"（向外）+"tend"（伸展），想象手臂向外伸展，意为延伸或扩大。
通常用于表示时间或空间的延长，常见于日常和正式场合。
All listed words rhyme with extend, sharing the /-ɛnd/ ending. Beware of lookalikes like 'extent' (/ɪkˈstɛnt/) which ends in /-ɛnt/.
Dictionary facts from ECDICT, WIKTIONARY.