化学知识与生活联系密切,请用下列物质的数字序号填空. ①氢氧化铝;②纯碱;③尿素

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问题:

化学知识与生活联系密切,请用下列物质的数字序号填空.

①氢氧化铝;②纯碱;③尿素CO(NH22;④活性炭;⑤食盐;⑥硫酸

(1)常用作洗涤剂的是______;

(2)用作除去金属表面的锈______;

(3)腌制鱼肉等常用的调味品______;

(4)用作冰箱去味剂______;

(5)常用于治疗人体胃酸过多的碱______;

(6)含氮量最高的常用氮肥______.

考点:碳的性质中和反应及在实际中的应用酸的用途碱的用途盐的用途
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Many years ago, there was a story of a school teacher—Mrs. Thompson. She told the children on the first day that she loved them all the same. But that was a lie. There in the front row was a little boy named Teddy Stoddard. He didn’t play well with the other children and he always needed a bath. She did not like him.

Then Mrs. Thompson got to know that Teddy was actually a very good boy before the death of his mother. Mrs. Thompson was ashamed of herself. She felt even worse when, like all her other students, Teddy brought her a Christmas present too. It was his mother’s perfume.

Teddy said, “Mrs. Thompson, today you smell just like my Mom used to.” After the children left she cried for at least an hour. On that very day, she stopped teaching reading, writing and maths. Instead, she began to teach children.

Mrs. Thompson paid particular attention to Teddy. The boy’s mind seemed to come alive. The more she encouraged him, the faster he improved. By the end of the sixth grade, Teddy had become one of the smartest children in the class.

Six years went by before she got a letter from Teddy. He wrote that he had finished high school, third in his class, and she was still the best teacher he ever had in his whole life. He went to college. Mrs. Thompson got two more letters from him with the last one signed, Theodore F. Stoddard, M. D.(医学博士).

The story doesn’t end there. On his wedding day, Dr. Stoddard whispered in Mrs. Thompson’s ear, “Thank you, Mrs. Thompson, for believing in me. You made me feel important and showed me that I could make a difference.”

Mrs. Thompson, with tears in her eyes, whispered back, “Teddy, you have it all wrong. You were the one who taught me that I could make a difference. I didn’t know how to teach until I met you."

小题1:What first impression did Teddy give Mrs. Thompson?

A.Heoftentoldlies.

B.Hewasgoodatmath.

C.Hewas dirty and not easy-going.

D.Heenjoyedplayingwithothers.小题2:According to the first paragraph, which is true between Teddy and his teacher?

A.Mrs. Thompson had a dislike of Teddy at first.

B.Mrs. Thompson didn’t play well with him.

C.Mrs. Thompson loved him all the time.

D.Mrs. Thompson told Teddy not to tell a lie.小题3:Why did Teddy become one of the smartest children in the class?

A.Mrs. Thompson paid little attention to him.

B.Mrs. Thompson gave him encouragement more often

C.Teddy was cleverer than before.

D.Teddy got on well with other students.小题4:Why did Teddy invite Mrs. Thompson to his wedding?

A.Teddy kept in touch with her all the time.

B.Teddy thanked her for her help and encouragement.

C.Teddy was treated by the teacher like her son.

D.She had taught him how to judge people.小题5:From the passage, we can infer that ______.

A.we should love our teacher

B.we shouldn’t tell a lie in any way

C.knowledge can’t be important

D.motherlycare can really make a difference

题型:问答题

足月妊娠时的羊水量约为()

A.1000ml

B.800ml

C.600ml

D.400ml

E.200ml

题型:问答题

以下哪点不是守门人的责任()。

A.确定“编导”方针

B.确保“产品”数量

C.加强整体协调

D.发现和培养传播人才

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在病例对照研究中,控制混杂偏倚的措施包括

A.限制人选对象
B.用匹配的方式选择对照
C.采用分层分析
D.采用多因素分析
E.以上均是

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关于碳水化合物的说法错误的是()。

A.葡萄糖是构成食物中各种糖类的最基本单位

B.淀粉完全由葡萄糖构成

C.人体只能利用L型葡萄糖

D.半乳糖在人体中须先转变为葡萄糖才能被利用

E.木糖是属于戊糖

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