欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

2. The birds in the cage which I bought yesterday 不是

1. Birds can fly 是

3. 不要把從句的謂語當成句子的謂語, 或把主句的謂語當成從句的謂語。

　如果是一個復合句，主句和從句都應該分別有自己的主語和謂語。

　典型錯誤：

1) 1)　 Those who eat too much will easily ill.

∟Those who eat too much will easily get ill.

　2) When he walking in the park, he felt a little tired.

　 ∟When he was walking in the park, he felt a little tired.

　3)When I at school, I studied very hard.

　 ∟When I was at school, I studied very hard.

II. Practice: 判斷以下是否是句子。

2. 一個句子不能同時有兩個謂語。

　典型錯誤：

1) The old man likes take a walk in the village after supper.

　 ∟The old man likes to take a walk in the village after supper.

　2) I enjoy talk with him over a cup of coffee.

　∟I enjoy talking with him over a cup of coffee.

　3) The boy ran to his mother cry.

　∟The boy ran to his mother crying.

　4) After write the notice, he put it up on the wall.

　∟ After writing the notice, he put it up on the wall.

　 After he wrote the notice, he put it up on the wall.

對英語句子的認識

意義：英語的句式與中文的不同。我們在學習英語的時候要注意到這一點。有的同學在學習中對此沒有足夠的認識，常常受中文的干擾。在寫作中表現(xiàn)出不能寫出正確的句子。

I. 什么是句子？

　長的是句子，短的是詞�！�

　√ 無論字數(shù)多少，只要有主語和謂語(動詞)，而且能表達完整的意義的一句話就是一個句子。

I am tired.

Pressing one’s palm together and resting one’s head on the back of one’s hand while closing the eyes as if sleeping means “I am tired.”(雙手合攏，閉上眼，把頭靠在手背上像睡覺的樣子，意思是說“我累了�！�)

　這兩個句子都具備了主語和謂語。都是完整的句子。要記住：在英語中，一個句子必須且只能有一個謂語。

1. 省略主語的句子

Come in, please. (You)

Open the door.

Sit down.

Stand up.

What a day! (What a terrible day it is!)

22、OH^-　 Cl^-　 K⁺；　 鐵粉；　 Ag(或銀)；

Ag⁺　 Fe³⁺　 Cl^-　 OH^-；　 KNO₃

21、(1)Fe²⁺、Fe³⁺、Cu²⁺、MnO₄^- (2)NH₄⁺、Mg²⁺、Al³⁺ (3)S^2-、CO₃^2-、HCO₃^-(4)Ba²⁺、 SO₄^2-

(5)Cl^-、NO₃^-、Na⁺

20、①　 H₂O₂ + 2I^- + 2H⁺ = I₂ + 2H₂O　 ② +2價

19、(1)含有Ba²⁺、Ca²⁺離子中的一種或兩種，因為BaSO₄不溶于水，CaSO₄微溶于水�！　　� (2)Fe(OH)₃　 　　　　

(3)2AlO₂^-+CO₂+3H₂O=2Al(OH)₃↓+CO₃^2-

或AlO₂^-+CO₂+2H₂O=Al(OH)₃↓+HCO₃^-

13、A　 14、B　 15、C　 16、C　 17、A　 18、A