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。