问题 选择题

下列说法不正确的是:

A.乙醇和浓硫酸反应制乙烯时,利用NaOH溶液可除去杂质气体

B.向饱和Na2CO3溶液中通入足量CO2,可析出NaHCO3,使溶液变浑浊。

C.室温下向苯和少量苯酚的混合溶液中加入适量NaOH溶液,振荡、静置后分液,可除去苯中少量苯酚

D.取少量溶液X,向其中加入适量新制氯水,再加几滴KSCN溶液,溶液变红,说明X溶液中一定含有Fe2

答案

答案:D

题目分析:取少量溶液X,向其中加入适量新制氯水,溶液中可能含有Fe3,KSCN溶液遇Fe3变红色,不能说明X溶液中是否含有Fe2,D选项不正确。

阅读理解

 阅读下面的短文,按要求完成短文后的题目。

     One day an Australian farmer, Joe, saw a bright light in the sky. 1 The light came nearer and nearer

and suddenly Joe saw that it was a spaceship .The spaceship landed in a field quickly.

     The door of the spaceship opened and two strange beings climbed out. 2 They seemed to be half man

and half bird. Joe was afraid of them. He tried to run away. But the spacemen walked towards him,

picked him up and carried him into the spaceship. They put wires( 电线) from a machine onto his head

and they could speak to him in English.

     They asked him some questions about the earth. "We are from Venus," they said, "but it's getting very

hot there .A lot of our people are dying and we don't have much time left. We are trying to find a new

home."

     After some time they 3 freed Joe and  at last the spaceship took off  and could not be seen again. Joe

told his friends about the spaceship, but no one believed his story.

     "You'll believe me one day," Joe told them. "The spaceman will come back…"

1. 翻译1 处画线部分的句子。

    _____________________________________________________

2. 不变句意,改写2 处句子。

    _____________________________________________________

3. According to the conversation between Joe and the aliens, what do we know about Venus?

    _____________________________________________________

4. 3处单词的意思是___________.  

A. let …go  

B. paid no money  

C. took away  

D. locked

5. 用文中的两个词填空。

(1) Some people ________ in everlasting life after death.

(2) The girls are ________ of going out at night.

单项选择题