下图为某雄性生物体细胞分裂某个时期的示意图,请据图回答。 (1)甲细胞正在进行

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问题:

下图为某雄性生物体细胞分裂某个时期的示意图,请据图回答。

(1)甲细胞正在进行______分裂。乙细胞是_______(名称),判断的理由是__________。

(2)甲细胞有染色体____条,1和2所携带的遗传物质_____(填“相同”或“不同”)(不考虑基因突变)。

(3)甲细胞继续分裂下一时期细胞中,有染色体_____条,DNA 分子___个。

(4)请画出乙细胞分裂后期的模式图。

考点:减数分裂有丝分裂
题型:读图填空题

下列曲线中(P为价格,Q为需求量),能正确反映大米价格与需求量变化关系的是(   )

题型:读图填空题

下列分布有最广的热带雨林的地区是[ ]

A.非洲的刚果盆地

B.亚洲的马来群岛

C.南美洲的亚马孙平原

D.亚洲的中南半岛

题型:读图填空题

下列各句中,加点的词语使用恰当的一句是(3分)

A.但凡官员读博士,学校与官员之间的好处彼此心知肚明。正因为如此,在职官员拿博士帽,蔚成风气,周瑜打黄盖,一个愿打,一个愿挨。

B.中国国务院 * * 温 * * 28日主持召开国务院常务会议,听取卫生部等部门对于一些国家发生人感染猪流感疫情的报告,研究部署中国加强人感染猪流感预防控制工作。

C.新华网青岛4月22日电,我国历史上首次多国海军检阅活动进入倒计时,参加检阅的我国海军部队已经在青岛附近海域集合完毕,并作好接受检阅的一切准备。

D.作为猪流感疫情“重灾区”的墨西哥27日“祸不单行”,就在科尔多瓦举行新闻发布会时,距首都墨西哥城以南大约250公里的格雷罗州奇潘西戈市附近发生里氏5.6级地震,墨西哥城也有明显震感。

题型:读图填空题

第三部分:阅读理解(共20小题;每小题2分,满分40分)

阅读下列短文,从每题所给的四个选项中(A、B、c和D)00,选出最佳选项,并在答卡上将该项涂黑。

Ryan  and Lowry had been friends  since high school,  but it wasn’t until after college

that they hit on the idea of a home—care-products company.“We were shocked to learn how  toxic  cleaning  products  were,”  says  Ryan.  Why  couldn’t they  create  green products that would be just as environmentally pure as Aveda’s skin—and—hair—care lines?

When Ryan’s mom heard about the plan,she stared at him blankly: “I’ve never even seen  you  clean your room!” Not discouraged,Lowry experimented with  nontoxic ways to clean.  while  Ryan  focused on marketing.  In  February 2001,they  mixed their first four   cleaning  sprays  and  convinced the  managers  of  20  grocers to try them·  Once  they had their  approval,they tapped  friends  and  family  and pooled their  savings to  come  up  with $90,000 in seed money.

From the start,“Go big or go home’’was their mantra(口头禅).Their first financing— that $l million—was due to be signed on September 11, 2001. By the time they got it, two months later,says Ryan, "we had$16 in the bank and personally owed$300,000·”

Seeking a national retailer(零售商)proved just as troublesome.The friends set their sights on Target,known for its trendy,affordable goods.“But Target didn’t like the product or the brand,”recalled Ryan.“We thought the deal was dead,but then a new buyer saw that even though we weren’t selling big volumes, we were  profitable, just on a smaller scale.”They won over Target.

Consumers  were  hooked  on the  natural things  and  wonderful  fragrance. Today,the partners sell 130 products in more than 8,000 stores,and taxes are over$100 million. Such  rapid  growth has  at times  stressed the  men’s  friendship. “Eric  and  I  agree on ‘what’  but  never  on‘how,’”  says Lowry.  “Although  we  are  willing to  challenge  each  other,we come up with interesting and smarter solutions.There’s little fire and ice between us·

56.The underlined word“toxic”in Paragraph 1 most probably means——·

A.poisonous    B.dirty    C.expensive   D.troublesome

57.When Ryan told his mom his plan, ___________.

A.he knew his mom was sure to support him

B.his mom asked him to clean his room

C.his mom suspected his ability

D.he was discouraged by his mom

58.We can learn:from the third paragraph that __________________.

A.Ryan and Lowry wanted to gave up and go home at first

B.their plan didn’t go smoothly at the very beginning

C.they made profit two months later after their first financing

D.$1 million was not enough as their seed money

59.The partners’cleaning products are sold very well because——.

A.the products are made of natural material and smell nice

B.their friends and family offered to use their products

C.they cooperated with a well—known national retailer

D.they convinced 20 grocer managers to try them

60.It can be inferred from the—passage that——.

A.Aveda’s skin—and—hair-care lines are not so successful as Ryan and Lowry’s

B.Target is a famous environment-friendly cleaning brand

C.The friends "cooperation with Target was very successful

D.The partners get on well with each other in their business

题型:读图填空题

北方某高校教师被派往西藏,进行援藏服务,她在拉萨工作一年后出现发绀和双面颊毛细血管网,有头晕、头痛、胸闷、气短、乏力等症状,红细胞数6.5×1012/L,血红蛋白230g/L,最可能的诊断为

A.高原肺水肿

B.高原脑水肿

C.急性高原反应

D.高原心脏病

E.高原红细胞增多症

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