仁爱版英语九年级Unit 2 Topic 2知识点.doc

1、1Unit 2 Topic 2（Grade Nine）、词组及用法1、blow strongly 风猛吹rain heavily 下大雨2、blow away 吹走3、wash away 冲走4、cut down 砍伐，缩短cut in 插嘴，打断（说话）cut off 切断（电源，水） ；中断cut out 剪下；删去cut up 切碎注意：动副结构，代词必须放中间，且用宾格。eg. cut down the trees cut the trees down cut it/them down5、as a result 结果as a result of 由于eg. As a result，he

2、 passed the exam.As a result of careless，she didnt pass the exam.6、change/turn ，into 把变成7、stop/prevent/keepfrom sth/doing sth 阻止（做）某事eg. Trees can stop/prevent/keep the water from washing the earth away.8、save 用法（1）贮存、保存eg. Forests can save a lot of water.Save sb sthsave sth for sb 为某人保留（2）节省、节约，避免（

3、金钱、时间等）浪费eg. We should save time.（3）救，挽救eg. save ones life 挽救某人的命He saved his friends life in the accident.9、in danger 处在危险中in danger of 处在的危险中10、die out 灭绝eg. Some animals are in danger of dying out.11、come to 想到，意识到，总计，总共eg. The good idea comes to him in a flash.他灵机一动，计上心来.That comes to 23 yuan, m

4、adam.总共 23 元，夫人.12、the importance of 的重要性eg. Many people have come to understand/realize the importance of plantingtrees.13、sth says that 用“文字，数字”表达信息（主语，是事或物）eg. It says in the newspaper that pollution is still a serious problem.2The newspaper says that pollution is still a serious problem.Its said

5、 that 据说Its reported that 据报道Its well known that 众所周知Its believed that 人们相信14、here and thereeverywhere 到处15、worst of all 最糟糕的是16、in the beginning 指一件事的初期17、take away 拿走，取走，带走18、escape sth/doing stheg. He is very lazy. He often escapes the study.The man escaped doing the work. escapefrom 从逃脱eg. The b

6、oy escaped successfully from that big fire. 19、refer to sth/sb 谈及/提到/涉及某人或某事20、seem 用法（1）It seems that+从句eg. It seems that their living conditions are very good.（2）主语+seem to do stheg. She seems to pass the test.（3）主语+seem+形容词eg. He seems very happy.21、protect/destroy the environment 保护/破坏环境22、avoid

7、 sth/doing sth 避免eg. Try to avoid speaking loudly in the reading.How can they avoid a serious water shortage？23、be short of 短缺缺乏24、divideinto 把分成25、come into being 形成、辨析1、a number of与 the number ofa number ofmany+名复 许多a great/large/small number of eg. A large number of books have been sold the numbe

8、r of+名（复）+谓（单）的数量eg. The number of the students in our school is 3900.2、none 与 no one3none of+名/ 代词+谓语eg. None of the girls likes/like playing the violin.How many birds can you see in the picture？None.How much milk is there in the bottle？None.no one 没有人，不与 of 连用，可与 else 连用，作主语时，谓语动词单数。eg. No one cam

9、e here yesterday.No one else knows about that.Who is in the room？No one.3、rise 和 raiserise 常用作不及物动词：升起，上升，站起来，起床（客观）eg. The smoke is rising into the sky.Jane rose and left the room.The sun rises in the east and goes down in the west.The river has risen two feet because the heavy rain.raise 为及物动词：举起，

10、抬高，筹集，饲养，抚养（主观）eg. The box is too heavy，so I cant rais lift it.Were raising money for the poor children.The farmer raised some sheep and horses.He raised his head when he heard his name called.She raised her voice.4、discover 和 inventdiscover 发现（发现以前没有人知道的东西，地方或事实等）eg. The new star was discovered by

11、a Chinese student.invent 发明，创造（指创造出世界上原本不存在的事物）eg. Alexander Graham Bell invented the telephone.5、earth ，soil，land 和 ground（1）earth ：地球，泥土eg. We should do something useful to protect the earth.Trees can stop the wind from blowing away the earth easily.（2）soil 土壤（主要指用于种植庄稼的）eg. The soil is good for g

12、rowing rice.（3）land 陆地（相对江、河、湖、海等） ，国土(可数)eg. After the bad boat journey，they were glad to arrive on land.A lot of rich land has changed into desert.（4）ground 指大地的表面，地面，场地4eg. The ground is covered with snow.6、nearly 和 almostnearly：（1）常与 not 连用eg. He nearly didnt hear what the teacher said.（2）常与数词连用

13、eg. The boy is nearly two years old.（3）可修饰形容词，实义动词及部分代词eg. The bottle is nearly empty.They nearly finished the work.Nearly all of them like playing basketball.（4）可与 asas 结构以及 the same 连用Its nearly as hot as yesterday.The two shirts are nearly the same.almost 多表示时间、程度、距离、进度，可修饰more than，nothing，nobod

14、y ，nowhere.no one，none，never 等eg. I have almost never seen him.、语法：不定代词和不定副词1、肯定句：somebody，someone，something，somewhere否定句/疑问句：anybody，anyone ，anything，anywhere本身表否定：none ，nobody ，nothing.各种句式：everybody ，everything，everywheresomething 可用于表示请求许可等委婉语气的疑问句（希望得到肯定回答）eg.Would you like something to drink？N

15、o，thanks.（1）不定代/副词+形容词eg. Id like to live somewhere quiet.You cant get it anywhere else.Lets go somewhere nice for dinner.There is nothing wrong with the radio.I have something important to tell you.2、不定代词作主语，谓语动词单数Everything goes well.Nobody is in the classroom.Nothing is difficult if you set your

16、mind on it. 世上无难事，只怕有心人3、anybody 任何人 anything 任何事情anywhere 任何地方可用于陈述句肯定句中范文 1：As we all know，water pollution is becoming more and more serious. Some factories pour waste water into the rivers. As a result，it makes the water dirty and smell terrible. Most of fish in the water have died and we cant sw

17、im in the water. Water is very important to human beings，so 5we should do our best to protect and save it. Luckily， our government is taking measures to protect the water from pollution.范文 2：My dear friends：Water is very important to human beings. Lets do something to protect and save it.First，we sh

18、ould protect our water resources and not pollute them. The government should also pass laws against the water pollution. Second，we should save water in our daily life，turn off the taps in time，take a shower instead of a bath，and always remember to collect and reuse water. Third，lets try to spread the message about protecting and saving water. Make more people around us know the problem of water shortage and how to help solve it.Lets try our best to save water and planet.Student Union