join, join in, take part in和attend的用法比较
这几个词或短语都有“参加”的意思，但用法不同。
一 ，join有两个用法：
(1)指加入某个党派，团体组织等，成为其成员之一，意为：“参军、入团、入党”等。如：
中国科举制度 When did your brother join the army? 你哥哥什么时候参军的？
She joined the Young Pioneers. 她加入了少先队。
(2)和某人一道做某事，其结构为：join sb. in (doing) sth.，根据上下文，in (doing) sth. 也可以省去梦见湖
Will you join us in the discussion? 你参加我们的讨论吗？
He'll join us in singing the song. 他将和我们一道唱歌。
We're going to the East Lake Park on Sunday. Will you join us?
我们打算星期天去东湖公园。你跟我们一道去好吗？
安意如二 ， join in多指参加小规模的活动如“球赛、游戏”等，常用于日常口语。如：
Come along, and join in the ball game. 快，来参加球赛。
Why didn't you join in the talk last night? 昨晚你为什么没参加座谈？
三 ， take part in 指参加会议或群众性活动等，着重说明句子主语参加该项活动并在活动中发挥积极作用。
We'll take part in social practice during the summer vacation. 暑假期间我们将参加社会实践。
We often take part in physical labor. 我们经常参加体力劳动。
take part in是惯用词组，part前一般不用冠词，但part前有形容词修饰时，要用不定冠词。
Lincoln took an active part in polities and was strongly against slavery.
期末质量分析
林肯积极参加政治活动，强烈反对奴隶制。
四 ，attend是正式用语，及物动词，指参加会议，婚礼，葬礼，典礼；去上课，上学，听报告等。句子的主语只是去听，去看，自己不一定起积极作用。如：
He'll attend an important meeting tomorrow. 他明天要参加一个重要的会议。
I attended his lecture. 我听了他的讲课。
选择题
1.---Would you like to ______ us in this topic?
---Yes, I’d like.
A.join B.join in C.take part in D.attend
2.Every student wants to _______ the class meeting.
A.join B.join in C.take part in D.attend
3.My brother _______ the Army for 3 years.
A.has joined B.has joined in C.has been in D.has attended
4.I’d like to invite you to ________ my birthday party.
A.join B.join in C.take part in D.attend
5.—Is your father a party member ?
回忆往事作文
---Yes. He ______ the Party five years ago .He ____ a Party member for five years.
A. joined ; has been B. joined ; was C. has joined ; has been
find，find out，look for与discover
find，find out，look for与discover都与“找”有关，但侧重点不同。请观察下面的例句。
【例句】
1. I’m looking for my pen.
2. 2. He can’t find his watch.
3. I find it difficult to learn English well.
4. Do you find out why Tom was late?电脑怎么修改开机密码
5. Scientists around the world are working to discover a cure for AIDS.
【用法】
◆look for意为“寻找”，强调找的动作，是延续性动词，如句1。
◆find意为“找到、发现、感到”，强调找的结果，是非延续性动词，如句2。
◆find out意为“查明、发现、了解”，指经过认真观察、调查或研究把某事、某物查出来、搞清楚，多用于复杂而不容易直接查出的情况，如句3和句4。
◆discover意为“发现、发觉”，指发现某种情况或发现早已存在而未为人知的东西，如句5。(invent 发明）
1.Edison _______ light bulb
A.found B.found out C.invented D.discovered
2.---What are you ______ ?
---My wallet
A.finding B.finding out C.looking D.looking for
3. Plea ______the answer to the question.
A.find B.find out C.discover D.look for
4. I have been _______ my wallet, but I can’t _____ it anywhere.
A.looking for,found B.looking for,found out
B.C.looking for, discover D.looking for, find
