空气 查看更多

 

题目列表(包括答案和解析)

没有空气和水任何东西都不能生存。

________ can live ________ air or water.

查看答案和解析>>

(每空1分,)如图甲表示某生物膜结构,图中A、B、C、D、E、F表示某些物质,a、b、c、d表示物质跨膜运输方式。图乙和图丙表示物质运输曲线,请据图回答:

(1)A代表        分子,B代表           ,D代表           
(2)动物细胞吸水膨胀时B的厚度变小,说明B具有                 
(3)维生素D和葡萄糖从肠腔进入小肠上皮细胞的过程分别是图中编号          
(4)若图甲是癌细胞的细胞膜,则膜上含量较正常细胞减小的物质是[   ]        
(5)若图中是线粒体膜,b和c过程运输的气体分别是          。b、c运输方式符号图         所表示的物质运输曲线。
(6)若图甲表示人体红细胞膜,则表示Na、K运输的分别是图中        。Na、K的运输方式符合图中          所示曲线。
(7)已知红细胞吸收葡萄糖是协助扩散,而有人认为小肠上皮细胞以主动运输的方式吸收葡萄糖,请设计实验加以确定。
①实验步骤:
第一步:取甲、乙两组生长状况相同的小肠上皮细胞,放入适宜浓度的含有葡萄糖的培养液中。
第二步:甲组细胞给予正常的呼吸条件,                                
第三步:                                                            
②预测实验结果并分析:
a.若甲、乙两组细胞对葡萄糖的吸收速率基本相同,则                   
b.                                                                 

查看答案和解析>>

短文填空。根据上下文和所给的首字母,补全空格内的词,使短文通顺。(共10分)

You may not realize it, but you are doing much more than just studying when you are at school. School is a   1.  the place where you learn to get along well with people. But this is not always easy. What can you do if you just don’t like one of your classmates?

If you d  2. that you have problems getting along with your classmates or friends, the most important thing to learn is tolerance(宽容). Tolerance is the ability to realize and respect the differences in others. We cannot change the w 3. that other people do, so it is important to learn to live h  4. with them.

Tolerance will make everyone get on better with each other. K  5.others constantly(不断地) makes us understand others’ differences.

Something different does not exactly mean that it is bad. Tolerance t 6.us to keep an even temper(温和的脾气) and an open mind.

You need to remember an old saying, “Treat others h   7. you want to be treated.” You would like to be treated kindly by your classmates, so it is important to treat them kindly too. If you tolerate something, it does not mean that you have to like it. No one is asking you to change who you are or what you believe in. Tolerance just means that you s   8. respect the differences in others and not to try to make them change.

It is important to practice tolerance, because it will make e  9. life easier. Learn to accept people for t   10.  different abilities and interests. The world is very different, and practicing tolerance in your own school and city can help make things better.

 

查看答案和解析>>

短文填空(本题共10小题;每小题1分,满分10分) 

请认真阅读下面短文,并根据各题所给首字母的提示,写出一个合适的英语单词完整、正确的形式,使短文通顺。

Anger(生气) is a kind of feeling. Many things can make you angry. When your teacher gives you too much homework, when your team loses an important game, when your friend borrows your favourite thing and then 1.b      it, you may get really angry.

  Usually, your body will tell you when you are angry. For example, you breathe much faster, your2.f    turns red and you may want to break something or hit someone, but sometimes, you try to hide your anger. For example, you may hide it in your head. The problem is that if you do this, you may get a 3.h     or your stomach may hurt.

  In fact, it's not 4.g     to hide your anger, and it's normal for you to get angry sometimes. But anger must be let out in the right 5.w    , without hurting others or yourself. Let me give you some advice.

  When you get angry, you can talk about it with6.o     people. It's 7.h    to talk about your anger with other people, such as parents, teachers, good friends etc. When you talk about anger, those 8.b      feelings can start to go away. On the other hand, when you start to feel angry, you can do some other9.t     : count from 1 to 100, go for a bike ride, think about good things, and so on.

In a word, don't let your anger10.c    you. Remember that how you act when you are angry can make everything better or worse.

 

查看答案和解析>>

缺词填空  先通读下面短文,掌握其大意,然后根据短文内容和所给首字母,在空格内填入一个适当的词,使短文意思完整。所给单词在题后横线上必须完整写出。(本大题共6分,每格0.5分)

There are four people in my family. Every day my parents are very busy t   1  to make money in order to pay the high tuition(学费)for my brother and me. They hardly say "I love you" or send f   2   to each other. Besides,my father has a bad temper(脾气).It is easy for him to lose his temper w  3    he's very tired from the hard work. I didn't know whether there was love between them u  4_   one spring. At that time,my father suddenly got badly sick. My mother had to stay with him in the hospital for a month. When they r _5__ from the hospital,they both looked very pale . It s_ _6__  that both of them had a serious illness.

After they were back,my mother helped my father walk slowly on the country road every day in the morning and dusk(黄昏). H __7  ,after two months my father still couldn't walk by  h__8_   .All of us were worried about him.

"Dad,how are you f _9__ now?"  I asked him one day.

"Susan,don't worry about me.”he said i  10  a low voice.“I just like walking with your mom. I like this kind of life.”Reading his eyes,I know he loves my mother very much.

Maybe many people think love m _11___  flowers,presents and sweet kisses. But from this experience,I understand that love is  _12___,making life strong and warm.

 

查看答案和解析>>


同步练习册答案