根據教材內容分析，新課標八年級下冊Unit 2重點知識主要包括：1.動詞短語；2.不定式。下面就中考考點，把知識整理如下：
一．單詞：
1. 詞形和詞性變化
kind adj. 善良的 ——n. 仁慈 kindness; help v.幫助 ——n. helper 幫手；
able v. 能夠 ---- adj. 殘疾的disabled; train v. 訓練——n. training 訓練；
difficult adj. 困難的——n. 困難 difficulty； break v. 打碎——adj. broken 破損的;
hungry adj. 飢餓的 —— n. hunger 飢餓；
Eg. We should help to stop hungerin Africa (非洲).
2. 近義詞辨析
lonely adj. 孤獨的； 寂寞的； alone adv.單獨地
Eg.The old man live alone but he doesn't feel lonely.
二．動詞短語
Cheer up kids/ cheer them up 使…高興；give out food / give it out 分發…;
put off plan/ put it off 推遲…； put up signs / put them up 粘貼…;
hand out paper/ hand it out 分發…; call himup: 打電話給他;
fixit up 修理; give it away 捐贈
Eg. He visited the sick kids to cheer them up.
注意：代詞放在動詞短語的中間; 名詞放動詞短語的後面.
三．不定式的固定搭配
1. volunteer to do sth. 志願去做某事
Eg. The girls volunteer to helpclean up the city parks.
2. need to do sth. 需要做某事
3. ask sb to do sth. 要求某人去做某事
4. decide to do sth. 決定去做某事
5. Be able to do sth. 能夠做某事
6. want to do sth./ would like to do sth.想要做某事
7. help to do sth. 幫忙做某事 ( 或 help do sth.）
Eg. You couldhelp to teach children.
8. make it possible for sb to do sth: 使某人做某事成為可能
9. 不定式表目的：
I'm making some sings to put uparound the school.
10. feel + adj. to do sth. 感覺做某事…
Eg.I feel lucky to have this dog.
11. I can do what I love to do. 我可以做我喜歡做的事情。
四、其他短語：
1. 照顧：look after/ take care of/ care for; 2. 參加...選拔：try out ;
3. 有影響的：make a difference; 4. 像: be like;
5. 同時：at the same time; 6. 我的一個朋友: a friend of mine;
7. 想出；提出：come up with； 8. 推遲: put off
Excercise: 詞組辨析：
（ B ）We believe we can____________a way to solve(解決)this difficult problem.
A. catch up with B. come up with C. put off D. clean up
9. 推遲做某事: put off doing sth.;
We put off having the party because of the bad weather.
10. 辨析: be used to doing sth. (習慣於做某事） / used to do sth. (過去常做某事）
（ A）He _______ go out with his parents, but now he ______ staying at home alone.
A used to; is used to B is used to; used to
C use to; is used to D is used to; use to
通過對八下 Unit 2 I'll help to clean up the city parks. 的知識點整理，對整個單元的詞彙和短語學習有了一些方向，為以後的學習也打下了一定的基礎。