问题 实验题

如图是桃花的结构请据图回答下列问题(1分×9)

(1)一朵花的主要结构是______,包括______和______ 两部分。

(2)雄蕊由______(填序号)组成,雌蕊由______(填序号)组成,发育成[11]______的是[9]______;将来发育成[12]______的是[10]______.

答案

(1)花蕊;雌蕊;雄蕊;(2)7、2;果皮;子房壁;种子;胚珠

题目分析:(1)一朵花的主要结构是花蕊,花蕊由雌蕊和雄蕊组成,因为与果实和种子的形成有直接关系,是花的主要结构。(2)图中雄蕊由7花药和2花丝组成,雌蕊由1柱头、8花柱、9子房组成,结构传粉受精后子房的发育情况为:

图中11为果皮由9子房壁发育而成,12是种子由10胚珠发育而成,4子房发育成果实。故答案为:(1)花蕊;雌蕊;雄蕊;(2)7、2;1、8、9;果皮;子房壁;种子;胚珠

阅读理解

Toyoda said those changes were being made nearly around the clock,but during three hours of often tense questions and answers he repeated that there was no link to the vehicle’s electronic systems.

Many drivers making complaints against Toyota and the government say their acceleration problems had nothing to do with floor mat interference(油门踏板故障)or sticky gas pedals(刹车).Outside experts have suggested electronic problems.

House lawmakers expressed serious criticism on Toyoda,the grandson of the company’s founder.

The National Highway Traffic Safety Administration(NHTSA)is seeking records on Toyota’s recalls and is conducting its own review on whether electronics were behind the car faults.NHTSA also continues to look into steering complaints from drivers of the popular Corolla model.

Toyota has recalled 8.5 million cars,more than 6 million of them in the United States.

It may be a while before car buyers believe that Toyota really makes safe cars.

Toyota’s January sales already fell 16 percent even as most other automakers jumped back from last year’s bad results.Analyst Koji Endo of Advanced Research Japan in Tokyo said he expects February sales,due out next week,to be down 30 percent to 40. Toyota’s sales problem could continue beyond that. 

It will take some time to feel the full effect of this,he said.

小题1:The best title for this passage is           

A.Toyota is in trouble

B.Toyota is under hearing

C.Toyota is finished

D.Toyota is still running小题2:What is the purpose of the hearing?

A.America hopes that Toyota apologizes to the US customers.

B.America wants to get Toyota out of the US market.

C.America wants to help Toyota out of difficulty.

D.America hopes that Toyota admits their cars have electronic system problem.小题3:What can we infer from the passage?

A.Toyota provides very good post sale service.

B.Toyota’s biggest market is in the United States.

C.Toyota will be closed soon.

D.Toyota’s dealership in the US will all be closed.小题4:The last sentence of this passage indicates            .

A.Analyst Koji Endo is fully confident about Toyota

B.Toyota could meet a worse situation

C.Toyota would get out of trouble sooner or later

D.Toyota would build up a better reputation among its customers

问答题 简答题