组成木脂素的单位（碳架）是( )

A:C-C B:CHC C:C-C-C D:C-C-C E:C-C

人体血红蛋白的一条肽链有145个肽键，形成这条肽链的氨基酸分子数以及它们在缩合过程中生成的水分子数分别是（）

A:145和144 B:145和145 C:145和146 D:146和145

在一次男子马拉松长跑比赛中，抽得7名选手的成绩如下(单位：分)： 136 145 129 180 124 154 145 这组样本数据的中位数和众数分别是

A:145 136 B:145 145 C:136 145 D:154 136

One of the most remarkable things about the human mind is our ability to imagine the futurE. In our 1._____we can see what has not yet happeneD. For example, while we are looking forward to 2._____a new place or country, we 3._____what it will be likE. We predict( 预料) the 4._____ people will eat, dress and act. Of course, we do not always predict things 5._____. Things are often very different from the way we 6._____them to bE. One of the 7._____ dreams in history is the dream of the German scientist, Kekule, who had been 8._____ to work out a very difficult problem in physics. He had 9._____and analysed(分析) the problem from every angle(角度) for days, but there 10._____ to be no way of 11._____ out the answer. Then one night he went to bed and dreameD. When he 12._____ up, he realized that he knew the answer. He had solved the problem in his 13._____. The hypnotist(催眠者)sat in the chair opposite him and spoke 14._____: I want you to concentrate on my voicE. Think about 15._____. You know nothing but my voicE. And as you pay attention to my voice, your 16._____ will get heavier. Soon you’ll be asleep. You will hear my voice and 17._____ my words, but your body will be asleep, your eyes are too heavy. You are 18._____ asleep, and when you wake up you will 19._____ nothing. You will forget everything. Now I am going to 20._____ slowly from one to fivE. One, two, three, four, fivE.

内容概要：本文讲述了人的大脑有预测未来的非凡能力，甚至在梦中有时也能解决一些难题。

答案简析：

1、C

解析：从前一句话中可以得到足够的启示。

2、A

解析：此处强调过程，另三个词系短暂动词，不能这样用。

3、A

解析：imagine表示一种心理描绘，与look forward to，predict  和expect 等词意相吻合。

4、D

解析：这里强调的是行为方式。此外，第6个空格前重现了类似的表达方式。

5、C

解析：情况经常与我们预计的不同，说明我们的预计不总是“正确的”。

6、D

解析：四个项中只有expect与predict 同义。

7、C

解析：开普勒的梦不具有 funny，dull和silly的特征。

8、A

解析：从下文来看，已成功地解决了问题，而不是“想”、“希望”或“努力”去做。

9、A

解析：“研究”与“分析”是紧密相联的。study 此处意为“研究”。research作“研究”讲时，若接宾语，须加上介词on 或into。

10、C

解析：凭语感确定。

11、B

解析：find out 意为“弄清”、“找出”。其余三个词组不合文意。

12、C

解析：wake up“醒来”,符合情节发展的进程：睡觉――做梦――醒来。

13、A

解析：由前文可知，他是在“梦”中解决了难题。

14、A

解析：softly意为 gently and slowly，这是催眠者对催眠对象应该采用的方式。

15、C

解析：从前后句来看，催眠者希望他什么也不要想。

16、A

解析：从下文your eyes are too heavy一句中可得到暗示。

17、D

解析：听到并且“理解”合乎逻辑。

18、D

解析：almost  asleep意为迷迷糊糊地睡着了，从眼皮沉重，还有简单的思维活动来看，不能说是完全睡着了。

19、B

解析：这里的remember nothing等于下一句中的forget everything。

20、A

解析：后面列举的一、二、三、四、五这一串数字，表明“计数”已经开始。

It was a half-mile walk from our small house to the beach road, where the 16 would be waiting for us. But that morning Janet was much worsE. She couldn’t make 17 walk. And I couldn’t carry her. The path to the beach was steep and narrow and 18 at the water’s edgE.

I was a stranger far from homE. I didn’t know 19 to turn for help. But I needed it badly. I hurried down to the beach and I found help. Four fishermen were about to go out for their morning 20 . I told them about my sick little sister. Could they help me get her down the 21 ? I hardly got the words out of my mouth 22 they dragged their boat back onto the sanD. They climbed the hill with mE. One looked at Janet and they 23 their heads. They talked softly to one another. “ 24 sick to sit in a chair,” one saiD.

“Better carry her 25 in bed,” said another.

An iron cot（儿童床） 26 along the cliff ! I was frighteneD. How could they do it? 27 the men told me not to worry. “Truly easy, truly 28 ,” they saiD.

They tied a rope to each leg of the cot. Each of them threw a rope 29 his shoulder and held the end in one hanD. I understood what they meant to do. 30 they carried the cot down the path, they would use the ropes to keep the cot 31 . But what if one of the men slipped and lost his balance? What would happen to him ― to the others ― to 32 ? The men just smiled at my alarm. “That 33 will make us even more careful,” they saiD.

The men went down the path. Every 34 was a careful onE. Always the cot was level, with never a bump. When they reached the beach road, they quietly lifted Janet into the taxi. 35 , they stretched her out on the back seat.

We made the morning train for Tokyo. And there an ambulance was waiting to take Janet to the hospital. The doctor told me that I had got my little girl there just in timE. Janet would be all right soon.

BDCCA CDABB DBDAA  CBABD

人体血红蛋白的一条肽链有145个肽键，形成这条肽链的氨基酸分子数以及它们在脱水缩合过程中生成的水分子数分别是 (　　)

A:145和144 B:145和145 C:145和146 D:146和145

人体血红蛋白的一条肽链有145个肽键，形成这条肽链的氨基酸分子数以及它们在缩合过程中生成的水分子数分别是

A:145和144　 B:145和145　 C:145和146 D:146和145

人体血红蛋白有4条肽链，其中一条肽链有145个肽键，则形成这条肽链的氨基酸分子数及缩合过程中生成的水分子数分别是（ ）

A:145和144 B:146和145 C:145和145 D:145和146

人体血红蛋白的一条肽链有145个肽键，形成这条肽链的氨基酸分子数以及它们在缩合过程中生成的水分子数分别是

A:145和144 B:145和145 C:145和146 D:146和145