do...a favour

do...a favour的音标是[duː ɪvə"feɪ]，翻译成中文是“帮个忙”。速记技巧是：duː=do；ɪvə"feɪ=a favour。

do...a favour的英文词源：

do a favour是一个常用的英语短语，意为“帮个忙”。这个词组的构成很简单，do是助动词，表示做某事，a favour是名词短语，表示一件好事。这个词组的词源可以追溯到古英语时期，其中do来自于助动词do的原始形式do，表示执行或完成某事；favour则来自于拉丁语favor的英语形式，意为“好意”或“善意”。

变化形式：

do sb a favour是一个常用的变体形式，意为“帮某人一个忙”。

相关单词：

1. favourable - 形容词，意为“有利的”或“友好的”，来源于favour。

2. be in one"s favour - 短语，意为“对某人有利”，也来源于favour。

3. do sb a good turn - 意为“帮某人一个好忙”，与do sb a favour意思相近。

4. return the favour - 意为“回报别人的好意”，return来自于动词return的词源。

5. act of favour - 意为“恩惠的行为”，favour在此处作为名词使用。

例句：

1. Please do me a favour and close the window. 请帮我关上窗户。

2. I"ll do my best to return the favour to you. 我会尽我所能回报你的好意。

以上就是do...a favour的英文词源、变化形式以及相关单词的解释和例句，希望对你有所帮助。

常用短语：

1. do sb a favour

2. do a good turn

3. be kind/good/nice to sb

4. be helpful to sb

5. be of help to sb

6. be in a bind/difficulty/trouble

7. be in need of sth

例句：

1. Could you do me a favour and help me with my homework?

2. I"m always kind to my friends, because I want to make their day better.

3. Becoming more environmentally friendly is a good way to be kind to the planet.

4. She is always helpful to others, whether it"s helping with homework or volunteering for community events.

5. I"m in a bind because I need a new computer but I don"t have enough money.

6. We are in need of food and water, but there is none to be found nearby.

英文小作文：

Doing a Favour for a Friend

When you are friends with someone, you want to help them out when they need it. It can be something as simple as giving them a ride to school or as big as helping them move into their new apartment. But no matter what the favour is, it shows that you care about them and that you are willing to go out of your way to do something for them.

I remember when my friend moved into her new apartment, I helped her move all of her furniture and things. It was a lot of work, but it was worth it when she thanked me and said how much she appreciated my help. Doing a favour for someone is not only a way to show them that you care, but it can also bring you closer together and strengthen your friendship. So if you ever find yourself in a position to do a favour for someone, don"t be afraid to step up and help them out.