从一个细胞到“小帅哥”,让我们看到了生命发生的奇妙变化。 (1)我的生命开始于

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问题:

从一个细胞到“小帅哥”,让我们看到了生命发生的奇妙变化。

(1)我的生命开始于一个被称为         的细胞,出生前我生活在妈妈肚子的【 】      里,每时每刻,都能通过脐带和【 】       从妈妈那里获得营养。

(2)随着出生时第一声啼哭,呼吸系统开始工作了,其中的

      是我与外界进行气体交换的场所。

(3)刚出生的我一碰到妈妈的奶头,就会吮吸乳汁,这是一种        (填“简单”/“复杂”)反射。母乳的营养太丰富了,其中的          是生长发育和细胞更新所需要的重要原料。

(4)作为男孩子,我体细胞中的性染色体组成是           

(5)青春期的我开始长胡子,这是睾丸分泌的                起了作用。

考点:人的生殖过程与发育青春期人的生殖系统的组成和功能
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与类风湿关节炎有关

A.良性骨肿瘤
B.恶性骨肿瘤
C.有恶性倾向的良性骨肿瘤
D.骨瘤样病变
E.继发性骨肿瘤

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The teacher said the earth ________around the sun.

A.went

B.goes  

C.will go

D.is going

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对关节面软骨描述错误的是()

A.表面光滑,并有少量的滑液

B.终身不骨化

C.具有一定的弹性

D.有丰富的血管和神经

E.其功能之一是使关节头和关节窝的形态更为适应

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Low levels of literacy and numeracy have a damaging impact on almost every aspect of adults, according to a survey published yesterday, which offers (1) of a developing underclass. Tests and (2) with hundreds of people born in a week in 1958 graphically illustrated the (3) of educational underachievement. The effects can be seen in unemployment, family (4) , low incomes, depression and social inactivity.

Those who left school at 16 with poor basic skills had been employed for up to four years less than good readers (5) they reached 37. Professor John Bynner, of City University, who carried the research, said that today’s (6) teenagers would even encounter greater problems because the supply of (7) jobs had shrunk.

Almost one fifth of the 1,700 people interviewed for yesterday’s report had poor literacy and almost half (8) with innumeracy, a proportion (9) other surveys for the Basic Skills Agency. Some could not read a child’s book, and most found difficult (10) written instruction.

Poor readers were twice as likely to be a low wage and four times likely to live in a household where partners worked. Women in this (11) were five times as likely to be (12) depressed, (13) both tended to feel they had no control over their lives, and to trust others (14) .

Those who had low literacy and numeracy were seldom (15) in any community organization and less likely than others to (16) in a general election. There had been no (17) in the literary level of (18) reporting problems.

Alan Wells, the agency’s director, said: “ The results emphasize the dangers of developing an underclass people, who were out of work, (19) depressed and often labeled themselves as (20) . There is a circle of marginalization, with the dice against these people and their families.”

6()

A.illiterate

B.suffering

C.poor

D.unqualified

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光镜下神经元的特征哪项是错误的?()

A.细胞形态多样,均有突起

B.由胞体、树突、轴突构成

C.核一个,居中,大而圆,色浅,核仁大而明显

D.胞体和突起内含尼氏体

E.胞体和突起内均有神经原纤维

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