问题 实验题

下图是果实的结构及其来源示意图,椐图回答下列问题:

(1)请指出下列字母所示结构的名称:

E______________ F______________

G______________ H______________

(2)受精作用完成后:花中的部分结构完成了“历史使命”,相继萎缩凋落,其中的___________继续发育,最终成为___________。

(3)已知I中没有胚乳,且有两片子叶,则它是___________植物的种子,这种植物的根系一般都是__________。

(4)从A到B的过程中,完成了的与果实和种子形成有关的过程是________和________。

答案

(1)E子房F胚珠G受精卵H果皮(2)子房;果实(3)双子叶;直根系(4)传粉和受精

题目分析:(1)C柱头D花柱E子房F胚珠G受精卵H果皮I种子

(2)受精完成后,子房发育成果实,胚珠发育成种子

(3)单子叶植物和双子叶植物都属于种子植物中的被子植物,都能产生种子,单子叶植物的种子有一片子叶,有胚乳,叶脉多为平行脉,根系为须根系;双子叶植物的种子有两片子叶,无胚乳,叶脉多为网状脉,根系为直根系.

(4)植物体经过开花、传粉受精,含有,有性生殖

阅读理解

Hours & Admission

Open Daily 10:00 a.m. - 5:00 p.m. except major holidays (see below)

July and August only - Thursdays until 7:00 p.m.

Please Note: all MIT Museum sites are wheelchair accessible.

Admission beginning July l, 2013

Adults: $10.00; youth under 18, students, seniors: $5:00; children under age 5: free

Admission is free the last Sunday of each month, all day, from September 2013 -June 2014

Evening programs are free with Museum Admission

Visit our Partner Organizations pages for more information about discounts(折扣).

Closed, 2013:

January l: New Year's Day

May 27: Memorial Day

July 4: Independence Day

September 2: Labor Day

November 28: Thanksgiving Day

December 24 & 25: Christmas Eve & Christmas Day

December 31: Early Closing for New Year's Day

小题1:The information you read above is probably about ______.

A.a museum

B.a cinema

C.a park

D.a cafe小题2:How much do they have to pay in total if a family, including grandparents, parents and a child of 8, go together on the last Sunday of November 2013?

A.$0.

B.$25.

C.$30.

D.$35.小题3:You won't be refused at the door if you go there at ______.

A.Thanksgiving Day

B.Christmas Day

C.6 p.m. on a Thursday of July

D.6 p.m. on a Tuesday of August小题4:Which of the following statements is TRUE?

A.Children under the age of 7 do not have to pay.

B.It is possible for the disabled to go there on wheelchairs.

C.Visitors have to pay some extra money for the evening programs.

D.There are definitely no more discounts besides those listed here.

单项选择题