人教版八年级Unit 8 知识要点解析

人教版八年级Unit8知识要点解析
1.turn on“打开，接通（电流，水，煤气等）”
●反义词为turn off“关闭，切断（电流，水，煤气等）”。

●它们都是动副短语，所以宾语是代词时，代词要放于短语中间。

●turn v.旋转turn up（声音）调大turn down（声音）调小
【考点训练】
①请打开收音机，我先看球赛。

Please_________the radio and I want to watch the soccer game.
②请关上电视，爷爷正在睡觉。

Please__________TV.Grandpa is sleeping.
③I can’t see anything.Can you turn_____the light?
A down
B on
C up
D off
2.cut up“切碎”=cut...into pieces.cut up为动副短语，代词作宾语时，要放于短语中间。

●cut v.切，砍
●cut...into pieces/slices把...切成碎片/薄片cut...in half/in two把...切成两半
●cut down砍倒，cut off切断，切除
【考点训练】
①Can you help me_____the apples,dear？
A take off
B put down
C cut up
D cut off
②Here are some pears.Please_______.
A cut it up
B cut up it
C cut them up
D cut up them
③请把这些水果切成碎片。

Please_____these fruit____________.
3.pour v.“倾倒，倒出”
●pour...into...“把.....倒入.....中”，pour...out...“把.....倒出.....”
【考点训练】
①请把牛奶倒入杯子中。

Please______the milk_____the cup.
②Don’t_____the polluted water into the river.
A put
B add
C give
D pour
4.【解析1】put v.“放置”
●put...into...“把.....放入.....中”，
●put...on...“把.....放在.....上面”
●put on穿上（衣服），戴上（服饰）
【考点训练】
①请不要把这些东西放在桌子下面。

Don’t______these things_____the table.
②Sorry,I forgot_______(put)the ball into schoolbag.
【解析2】add v.“增添，增加’.add...to...”把......加到/添加到......里面”
Add5to6and you will get11.
Would you like to add some sugar to the coffee?
【拓展】add to增添，增加
Smartphones add to a lot of happiness for our life.
【考点训练】
①不要忘记给汤里加一些糖。

Don’t___________________some salt_____the surge.
②She doesn’t like sugar.So_________(not add)sugar to her coffee.
③If you add three____nine,you will get twelve.
5.another
●another10minutes另外十分钟“another+数量词+名词”意为“又/再/另......”
●another+数量词+名词=数量词+more+名词
●another one thing=one more thing另外一件事
●another“（三者或同类中）另外一个，（泛指）另外一个”
【考点训练】
①最后，我们再等了十分钟。

Finally,we waited__________________.
②We had to give him______three pears.
A other
B the other
C another
D others
6.piece
●a piece of“一块/片/条/首/张.....”,后面接不可数名词或可数名词。

如
a piece of cake/bread/news/song/paper
一块蛋糕/一片面包/一条新闻/一首歌曲/一张纸
●当piece前有数量词时候，piece要用复数。

I am hungry.please give me two pieces of bread/beef.
●当“a piece of+名词”作主语时，谓语动词用单数。

当“pieces of+名词”作主语时，谓语动词用复数。

如
【考点训练】
①盘子里有两块鸡肉。

There______two____________chicken in the plate.
②The singer song five_______songs just now.
A piece
B pieces of
C piece of
D pieces
③I am hungry.Please give me some_______(piece)of meat.
④We need fives pieces of onions for the food.（对划线部分提问）
__________pieces of onions do you need for the food?
7.【解析1】celebrate v.庆祝，祝贺
●celebration n.庆祝，典礼
【考点训练】
1)Children decided________(celebrate)a new beginning of their lives.
2)他们计划下周祝贺这些获胜者。

They planed__________these winners next week.
【解析2】“by+动词ing”表示“通过做......”,说明做某事的方式或方法。

【考点训练】
①我通过听英语歌学英语。

I study English_________________English songs.
②We finished our work by______(help)each other.
8.one way to do sth.“做某事的一种方法”，to do sth.在这里做way的后置定语，相当于of doing sth.
【考点训练】
①This is a way_____(find)the answer to the question.
②他想出了一个建房子的方法。

He thought of_______________________the house.
9.mix v.“混合，搅拌”,n.“混合配料”。

●常用结构mix...and/with...“把......和.....混合”
●mix up“混合，混淆”
Let’s mix up butter and cheese.
【考点训练】
1)You first cut up these vegetables.Then__________________（把它们混合）.
2)这个科学家想使水和这种药品混合。

The scientist wants to make water_________the medicine.
10.fill v.“充满，填满”，
●常用结构fill...with...“用......充满/填满/装满.....”
●be filled with充满/填满/装满.....=be full of
【考点训练】
①请把杯子装满水，递给我。

Please______the cup_____water and pass it to me.
②Her eyes were______(fill)with tears when she saw her son.
③这个餐厅里挤满了人。

The restaurant________________people.
11.cover v.“覆盖，遮盖”，
●常用结构cover...with...“用.....覆盖......”,
●be covered with...“被.....所覆盖做”
【考点训练】
①他用草盖住了这个洞。

He_____the hole____the grass.
②They_____the box_____some oranges.
A full...of
B filled...with
C filled...of
D full...with
③这张桌子被厚厚的尘土盖着。

The table is__________thick dust.
12.It’s time to do sth.“到做某事的时间了”
●It’s time for sb.to do sth.“到某人做某事的时间了”
●It’s time for sth.“到（做）某事的时间了”。