Unit 2 Topic 2（Grade Nine）
Ⅰ、词组及用法
1、blow strongly 风猛吹
西欧旅游 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 down
5、as a result 结果
as a result of… 由于…
eg. As a result，he pasd the exam.
As a result of careless，she didn’t pass the exam.
6、change/turn…，into… 把…变成…
7、stop/prevent/keep…from 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 sth＝save sth for sb 为某人保留…
（2）节省、节约，避免（金钱、时间等）浪费
eg. We should save time.
（3）救，挽救
eg. save one’s life 挽救某人的命
He saved his friend’s 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
海贼王英文名
eg. The good idea comes to him in a flash.
他灵机一动，计上心来.
That comes to 23 yuan, madam.
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 planting
trees.
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 rious problem.
The newspaper says that pollution is still a rious problem.
It’s said that… 据说…
It’s reported that… 据报道…
It’s well known that… 众所周知…
It’s believed that… 人们相信…
14、here and there＝everywhere 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 sth
eg. He is very lazy. He often escapes the study.
The man escaped doing the work.
escape…from… 从…逃脱
eg. The boy escaped successfully from that big fire.
19、refer to sth/sb 谈及/提到/涉及某人或某事调料有哪些
20、em用法
（1）It ems that+从句
eg. It ems that their living conditions are very good.
（2）主语+em to do sth
eg. She ems to pass the test.
（3）主语+em+形容词
eg. He ems very happy.
21、protect/destroy the environment 保护/破坏环境
22、avoid sth/doing sth 避免
eg. Try to avoid speaking loudly in the reading.
How can they avoid a rious water shortage？
23、be short of… 短缺…缺乏…
24、divide…into… 把…分成…
25、come into being 形成
Ⅱ、辨析
1、a number of…与the number of…
a number of…＝many+名复… 许多…
a great/large/small number of…检查用英语怎么说
吃昆虫的植物
eg. A large number of books have been sold
the number of+名（复）+谓（单）…
大气污染的原因 …的数量
eg. The number of the students in our school is 3900.
2、none与no one
△none of+名/代词+谓语…
eg. None of the girls likes/like playing the violin.
——How many birds can you e 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el连用，作主语时，谓语动词单数。
eg. No one came here yesterday.
No one el knows about that.
——Who is in the room？
——No one.
3、ri和rai
ri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 ro and left the room.
The sun ris in the east and goes down in the west.
The river has rin two feet becau the heavy rain.
rai为及物动词：举起，抬高，筹集，饲养，抚养（主观）
eg. The box is too heavy，so I can蒜苗炒五花肉’t rais lift it.
We’re raising money for the poor children.
The farmer raid some sheep and hors.
He raid his head when he heard his name called.
She raid her voice.
4、discover和invent
discover 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 a Chine 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.黎远康
5、earth，soil，land和ground
（1）earth：地球，泥土
eg. We should do something uful 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 growing 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 dert.
（4）ground 指大地的表面，地面，场地
eg. The ground is covered with snow.
6、nearly和almost
nearly：
（1）常与not连用
eg. He nearly didn’t hear what the teacher said.
（2）常与数词连用
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as…as 结构以及the same连用
It’s 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，nobody，nowhere.
no one，none，never等
eg. I have almost never en him.
Ⅲ、语法：不定代词和不定副词
1、肯定句：somebody，someone，something，somewhere
