问题 解答题

我国的主要植被类型有______、______、______、______、______.

答案

一个地区内生长的所有植物叫做这个地区的植被.我国主要的植被类型有以下几种:(1)草原:组成草原的植物大多是适应半干旱气候条件的草本植物. (2)荒漠:荒漠的生态条件极为严酷,夏季炎热干燥,土壤贫瘠.荒漠的植被稀疏,植物种类贫乏,这里生长的植物十分耐旱. (3)热带雨林:热带雨林分布在全年高温多雨的地区,植物种类特别丰富,终年常绿,大部分植物都很高大. (4)常绿阔叶林:常绿阔叶林分布在气候比较炎热、湿润的地区,这里的植物以常绿阔叶树为主. (5)落叶阔叶林:落叶阔叶林分布区四季分明,夏季炎热多雨,冬季寒冷,这里的植物主要是冬季完全落叶的阔叶树. (6)针叶林:针叶林分布在夏季温凉、冬季严寒的地区,这里的植物以松、杉等针叶树为主.

故答案为:草原;荒漠;热带雨林;常绿阔叶林;针叶林.

名词解释
单项选择题

It seems that politicians around the world are thinking about the health of their countries. While in China, Chen Zhu has announced his plans for a universal health service and reform across health services. Gordon Brown, the UK Prime Minister, has also announced he is planning to make some changes in our health service.

The crux of Mr. Brown’ s proposals is related to giving the NHS ( National Health Service) a greater focus on prevention, rather than just curing patients.

He is planning to introduce increased screening for common diseases such as heart disease,strokes and cancer, for example, breast cancer. In Britain there are 200,000 deaths a year from heart attacks and strokes, many of which might have been avoided if the condition had been known about.

Initially, the diagnostic (诊断的) tests will be available for those who are vulnerable, or most likely to have the disease. One example is a plan to offer all men over 65 an ultrasound test to check for problems with the main artery (动脉), a condition which kills 3,000 men a year. The opposition have criticized Mr. Brown’ s proposals, saying that they are just a trick, and Claiming that there is no proper timetable for the changes. They also say that Mr. Brown is reducing the money available for the treatment of certain conditions while putting more money towards testing for them.

The NHS was founded in 1948, and is paid for by taxation. The idea is that the rich pay more towards the health service than the poor. However, in recent years there has been a great increase in the use of private health care, and it’ s much quicker. The NHS waiting lists for operations can be very long, so many people who can afford it choose to pay for medical care themselves.

All the following statements are true except that () .

 

A. all people should pay for their health care at the NHS

B. some people are against the reform of health care

C. the writer is likely to come from Britain

D. more money will be spent on testing people than before