人类的生产和生活都离不开金属。
（1）金属元素在自然界中分布很广，地壳中含量最多的金属元素是 ；
（2）铁是应用最广泛的金属，铁锈（主要成分Fe2O3）中铁元素以 （填“游离态”或“化合态”）存在；稀硫酸除铁锈的反应方程式为 ；
（3）在CuSO4和ZnSO4的混合溶液中加入一定量的铁粉，充分反应后过滤，向滤出的固体中滴加稀硫酸，没有气泡产生，则滤出的固体是______（填名称），滤液中一定含有的溶质为_______________（用化学式表示），有关反应的化学方程式为_______________________。
Indiana middle school and high school students can receive free help with their math and science homework, ___is great news for parents, teachers, kids in grades six through twelve in the state of Indiana. The Rose-Hulman Institute of Technology has
_ homework hotline that makes
possible, and the homework hotline provides this
___ (value) tutoring(辅导) service for free. Not only is homework help
__ (complete) free to Indianan middle school and high school kids, but the call is also free
charge.
Since 1991, the Rose-Hulman Institute of Technology ___(help) middle school and high school kids in the state of Indiana develop the skills they need
__(solve) math and science problems, and Rose-Hulman college students help in a way that makes kids think and solve problems without
____ (provide) the answers. This free tutoring program is a great benefit
____middle school and high school students in Indiana.
阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
Dear Gill,
Do you remember me telling you about a health farm I've seen advertised? Well, I've looked at the ad again must say that it looks fantastic. Now I'm hoping to persuade you _(join) me there for a weekend!
The rooms you stay in sound really luxurious and apparently they all have an access the garden All the meals are offered at a
(reason) price and you can also get room service if you want. The brochure says that what you do is
(entire) up to you. You can have programs specially
(design) to suit you oryou can just ask the staff to make a few
(suggest) about activities to do. You can use any of the sports and leisure facilities as much as you like, and the brochure also
(mention) lots of other activities
every day don’t worry,as nobody willwatch you do anything, you could just spend the whole time
(relax) in the sauna if you want! There's a terrific offer on at
moment: weekends costing only half the normal price although that only for certain dates. Anyway, let me know what you think.
Best wishes,
Sue
A water carrier had a cracked pot so water in it leaked out .But he could see the good and make use the crack to water flowers along the road.
What the water carrier said (impress) me. No one in the world is perfect. We should learn to seethe good in others
(tell) them they are extraordinary.
The lovely cracked pot reminds me of my desk-mate , I always helped with maths. One day, she told me she was sorry for wasting so much of my time. I was
(shock) at her words. As a matter of fact, it was her diligence that pushed us
(work) together. It was her who let me know that whether we could
(success) achieve our goal didn't depend on how clever we were
how much we desired and how long we could insist on. To be frank, what I taught her were only some maths problems but what she taught me was a
(mean) lesson of life.
So in my opinion, everyone must have many virtues. Take a moment to observe good in others and tell them. It is a simple but very powerful way to light up the whole world.
Just the sounds of the 1960 movie thriller Psycho may be enough to get your heart racing. Even when we may not be aware of it, (hear ) music can affect our bodies as
( good)as our minds. But are the physiological effects of music unique
one culture or are they more general?
(find )out the answer, researchers enlisted 40 Canadians from downtown Montreal and 40 Pygmies from the Congo rainforest. All the volunteers
( listen) to musical clips from the movies Star Wars and Schindler's List, and to music from Pygmy culture.
As the ( participate)listened, the researchers observed their
( emotion) reactions, as well as changes in heart rate, breathing rate and palm-sweat production. The two groups disagreed about whether a particular musical selection was happy or sad. But they all had similar levels of arousal.
These findings suggest that some aspects of how we react to music are universal, rather strictly cultural.
The study (publish )in the journal Frontiers in Psychology last month. It showed fundamental acoustical（音响的） features seem to be responsible for the similar responses of the Canadians and the Congolese Pygmies.
Does that finding mean that science can help create the world's most (universe )catching pop song?
第一节短文填词（共10小题;每小题1分,满分10分）.
A few years ago, I drove to a gas station. It was a fine day, I was feeling good. As I walked into the station to pay for the gas, the attendant said to me: “You don’t look well” That completely took me by ______, I told him I had never felt
（well）. Without hesitation he told me I looked terribly bad and my skin appeared yellow.
When I left the gas station, (feel) a little uneasy, I pulled over to the side of road and look at my face in the mirror. How did I feel? Was everything all right? Had I __
___ up a rare disease? Had I had hepatitis（肝炎）?
The next time I drove into the gas station, I figured out what (happen). The place had recently been painted a bright yellow, the light
(reflect) off the walls made someone inside look as __
_ they had hepatitis. I wondered how many folks had reacted the way I did. I had let one short conversation with a total stranger
(change) my attitude for an entire day. He told me I looked sick, and before long, I was actually feeling sick. That single negative observation had a profound effect
the way I felt and acted.
A little while later I saw how funny the incident was. I wonder how many other people that the man had told were ill he realized that the gas station had a paint job.
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