下列操作或现象与分子对应的特征不一致的选项是（）选项操作_爱下问搜题

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问题选择题

下列操作或现象与分子对应的特征不一致的选项是（　　）

选项	操作或现象	分子的特征
A	给篮球充气	分子间有间隔
B	在花园中可闻到花的香味	分子是运动的
C	10mL酒精和10mL水混合后体积小于20mL	分子是有质量的
D	加热氧化汞可得到金属汞和氧气	分子是可以再分的

A．给篮球充气

B．在花园中可闻到花的香味

C．10mL酒精和10mL水混合后体积小于20mL

D．加热氧化汞可得到金属汞和氧气

答案

A、给篮球充气，说明了分子间有间隔．故A不符合题意；

B、在花园中可闻到花的香味，说明了分子是不断运动的．故B不符合题意；

C、10mL酒精和10mL水混合后体积小于20mL，说明了分子间有间隔，并不是分子是有质量的．故C符合题意；

D、加热氧化汞可得到金属汞和氧气，有新物质生成，属于化学变化．说明了在化学变化中，分子可以再分．故D不符合题意．

故选C．

综合

读下面等高线地形图，回答问题。

从___________（A还是B）爬到山顶容易。原因是_________________________。

完形填空

短文填空。（每空2分，共16分）

根据下面短文内容，在短文的空格处填上一个恰当的词，使短文完整、通顺。

It is important for you to set goals. However, you 1 feel it difficult to do. I hope the following things can help you.

◆Have a strong wish for your goal（目标）

You should remember: the starting point of all success is a strong wish. Strong 2 make good results. So, the first step to 3 a goal is to have a strong wish.

◆Picture yourself reaching a goal

You can change your life by changing your mind. You should 4 stop thinking that you can reach your goal. For example, you can draw a picture 5 something that you want and put it up on the wall. Then you can see it every day and 6 seems that you have already got it. This will encourage you to make it come true.

◆Make a plan to reach your goal

To make a plan to reach your goal is the most important step. You should make sure that you think through everything in the plan first. Each day you should follow the plan so that you are 7 to reach your goal.

◆Check your progress

8 you are trying to reach your goal, you need to check how much progress you have made and how many things you have missed. Write these things down and find out how to do them better.