问题 完形填空

PART FOUR: WRITING
Section A (10Points)
Directions: Read the following passage. Complete the diagram by using the information for the passage. Write NO MORE THAN 3 WORDS for each answer.
There are many things you can do to keep friendship strong forever.
Trust is very important in keeping any relationship strong and long lasting. If you trust the person whom you have a good relationship with and the other person also trust you in the same way, then you two have a good relationship.
You can remember important date of your friends such as their birthdays and wish them or give gifts to them on this special days. Many people say that money is the most important thing to consider, but remember friendship is not about money. You can find something small and inexpensive for their gifts or send online cards.
A friend should also always help others even when it is not very convenient. So have a helping hand ready at all times.
Sometimes distance makes relationships even closer. So, if you are far from your friends, there are many ways you can remain in contact(联系). You can use email, chat programs, and you can also write a blog and share your daily life activities with your friends.
If there is anything that makes you happy, share it with your friends. Listen to their thoughts as well. If they have achieved something noticeable, congratulate them and celebrate with them.
I have seen good friendships and when there is unhealthy competition between two friends. Though this may not happen in many cases, it is better to keep this idea in mind since it may happen to you.
As far as I have seen and experienced, it will be better not to either lend to or borrow money from your good friend. Of course, we have to do this with friends. But, attention should be paid so that your friendship may not end.
How to Keep Your Friendship 71______
72. ______
Details
Trust
Don’t doubt your good friend so that he or she will treat you
73. ______.
 
Remember important dates
·Give your 74. ______, small gifts or send online greetings to your friends on their birthdays.
·Don’t connect friendship with money.
·Try to send good friends 75. ______ gifts.
76. ______
Be ready to give a hand to your friends as much as possible.
Remain in touch
Use modern technology to contact your 77.         friends.
 
Share feelings
·Share the happiness with your friends.
·Listen to your friends.
·78. ______ your friends on their achievements and celebrate them together.
Avoid 79. ______
Don’t try to compete with each other in an unhealthy way.
Avoid money exchange
Don’t lend or borrow any money from your good friend, otherwise it may 80. ______ the friendship.
答案

71. Strong Forever            72. Tips/ Suggestions / Advice

73. the same way             74. wishes

75. small and inexpensive      76. Help the friends

77. distant                   78. unhealthy competition

79. Congratulate              80. end / harm

填空题

(三选一)【选修2:化学与技术】

随着信息产业的高速发展和家用电器的普及,我国印刷电路板(PCB)的生产呈现急剧增长之势。废旧电路板的增多给我们带来了环境问题,目前我们大多采用32%~35%的FeCl3溶液溶解印刷线路板上的金属铜,从而进行对铜的回收和利用。经分析腐蚀废液中主要含有HCl、FeCl2和CuCl2等溶质。

(1)用32%~35%的FeCl3溶液溶解印刷线路板上的金属铜的原理是(用离子方程式表示)_____________________。

(2)工业上有多种回收腐蚀废液中铜的方法,下面是常用的两种方法。

方法一:电化学方法回收腐蚀废液中的铜,则阳极(石墨)上的电极反应式为_______________。

方法二:工业上也可以用铁粉回收腐蚀废液中的铜。

①用铁粉回收铜的实验操作为___________。

②科学家对铁置换铜工艺的研究如下:分别用还原铁粉、废铁屑和废铁屑在超声波粉碎处理下置换铜,将置换出的铜粉放入250mL烧杯中,加入 120mL1.5mol/L的硫酸,水浴加热,控制温度在70℃,搅拌,在10min、20min、30min、40min、50min、 60min时,分别用吸管移取0.5g左右的铜于试管内,将上层清液倒回小烧杯中,用蒸馏水洗净试样,过滤,在 105℃烘箱中烘干后测定铜粉中铁的含量。其结果如图所示。

已知a表示用还原铁粉置换铜的除铁效果,b表示用废铁屑置换铜的除铁效果,c表示用废铁屑在超声波下置换铜的除铁效果,你认为除铁效果最好的是_______(填a、b或c),其原因是______________________。

解答题