问题 填空题

近年,我国沿海经常发生大面积的“赤潮”,造成养殖业重大损失.

(1)赤潮的发生主要是与因为藻类的疯狂生长,与藻类疯长密切相关的元素是 _________ 等.(填元素符号)

(2)海水中资源丰富,海水中含量最多的分子是 _________ (填符号).

(3)盐场海水晒盐的原理是 _________ (填“A”或“B”).

A、氯化钠的溶解度受温度影响较大

B、因氯化钠溶解度受温度影响不大,故采取蒸发水分的方法.

答案

(1)磷元素.

(2)H2O.

(3)B

阅读理解

阅读理解 

         It’s Sunday. It’s fine. Tom does not go to school today. But he is not at home. He’s now sitting(坐) on a Chinese bus. He is going to the movie house. All his classmates(同学) will go to see a movie this afternoon. His teacher Mr Wang will go there, too. They will meet at 2:00 p.m. at the gate(门口) of the movie house.  

         An old man gets on(上车) the bus. Tom stands up and says(说) to the old man, “Come and sit here, please.” The old man goes over and sits down. He says, “Thank you very much, my boy. You are a good student.” Tom answers, “You’re welcome.”  

     “What school are you in?” the old man asks Tom.  

     “I am in No. 2 Middle School.” Tom answers.

     “No. 2? That’s a good school. My son is a teacher there. He is an English teacher.” The old man says.  

     “English teacher? Excuse me, grandpa. What’s your son’s name, please?” Tom asks.  

     “Mr Wang,” says the old man.  

     “Ah, ah, he is my English teacher.” Just then, the bus stops near the movie house. Tom says goodbye to the old man and gets off(下车) the bus. The old man smiles(微笑) to Tom.

1. In the sentence(句子) “the bus stops near the movie house”. “stop” means (意思是)______.  

A. 车站      

B. 开      

C. 关      

D. 停

2. Which(哪一句) is right?  

A. It's Saturday today.  

B. It's not fine today.  

C. Tom goes to school on Sunday.  

D. Tom is a student of No. 2 Middle School.

3. Mr Wang is_____. 

A. at home today  

B. the old man's son  

C. the old man's father  

D. a Chinese teacher

4. What do you think of Tom? 

A. Tom is a good student.  

B. Tom is a bad(坏的) student.  

C. He does wrong(错) things.  

D. He is a good teacher.

5. Which is right?  

A. Tom goes to the movie house on an English car.  

B. Only Tom and his teacher go to the movie house to see a movie.  

C. They go to the movie house for a meeting(会议).  

D. The old man's son is Tom's English teacher.

判断题