阅读理解 China_is_going_green. In order to

题型:阅读理解

问题:

阅读理解

     China_is_going_green. In order to reduce air pollution and oilshortages, automobile manufacturers

have announced their plans to develop hybrid vehicles (混合燃料汽车) for the Chinese market.

Toyota's hybrid car Prius will be ready to drive in China this week. Let's have a look at the new car.

     Any vehicle is a hybrid when it combines two or more sources of power. Hybrid cars run off a

rechargeable battery and gasoline. Hybrid cars have special engines, which are smaller than traditional

gasoline engines. They run at 99 percent of their power when the car is cruising (匀速行驶). A specially

designed battery motor provides extra power for running up hills or when extra acceleration is needed.

     Step into a Prius, and turn on the engine. The first thing you notice is how much quieter it is than a

traditional car. At this point, the car's gasoline engine is dormant (休眠). The electric motor will provide

power until the car reaches about 24 km/h. If you stay at a low speed, you are effectively driving an

electric car, with no gasoline being used, and no waste gas gives off.

     The onboard(车载的) computer makes the decision about when to use a gas engine, when to go

electric, and when to use a combination of the two. If you go over 24 km/h, when you step on the gas

pedal (油门), you are actually telling the computer how fast you want to go.

     The electronic motor recharges automatically using a set of batteries. When driving at high speed, the

gasoline engine not only powers the car, but also charges the batteries. Any time you use the brake, the

electric motor in the wheels will work like a generator and produce electricity to recharge the batteries.

As a consequence, the car's batteries will last for around 200,000 miles.

1. The author writes this passage mainly to________.

A. teach people how to drive a hybrid car

B. introduce a new kind of "green" car

C. show how to save their gasoline when driving a car

D. announce plans to develop hybrid vehicles for China

2. The first sentence probably refers to ________.

A. there will be more and more green land in China

B. China is still young and lacking experience

C.China's new cars are combinations of different green models

D. China has started producing environmentally friendly cars

3. Which of the followings is NOT true?

A. The hybrid cars reduce air pollution and oilshortages.

B. The car's gasoline engine doesn't work until it reaches about 24 km/h.

C. This kind of car is completely controlled by an onboard computer.

D. A specially designed battery motor provides extra power when needed.

4. What is the most important feature of hybrid cars?

A. They are powered by both a rechargeable battery and gasoline.

B. They are much quieter than traditional cars.

C. They only use 99 percent of their power to run up hills.

D. They have smaller engines than traditional gasoline ones.

5. What can we conclude from the story?

A. The batteries can be recharged at any time you want.

B. Using the brake suggests that the gasoline engine should work.

C. The batteries will last for 200, 000 miles without being recharged.

D. The gasoline engine charges the batteries as well as powers the car.

考点:健康环保类阅读
题型:阅读理解

在盛有氢氧化钠溶液的试管里,滴入几滴       ,溶液变成了红色,再用      慢慢滴入稀盐酸,同时不断             ,一直到溶液刚刚变成无色为止。化学方程式为                                   。若将反应后的溶液进行蒸发,还需添加的仪器有                                   

题型:阅读理解

在学习二氧化碳性质后的复习课中,李老师将一瓶气体放在桌面上(如图所示),要求大家用三种不同的方法证明该瓶气体是二氧化碳。小明同学提出了如下三种实验方法。请你在空白处写出相应的实验现象。

(1)将一只心动物放人瓶中:_____________。  

(2)将点燃的小木条伸入瓶中:______________。  

(3)向瓶中倒人足量澄清的石灰水:_____________。

题型:阅读理解

肺胀后期的病理特点是()

A.痰浊为主

B.痰瘀并重

C.兼见气滞

D.兼见水饮

E.痰瘀壅盛,正气虚衰

题型:阅读理解

下图表示某些物质间转化关系。其中A、D是由相同元素组成的固体,且A为紫黑色,C为黑色粉末,B、E为常见气体;X与F是由相同元素组成的无色液体,且X具有消毒杀菌作用;Y是一种红色金属。请回答下列问题:

(1)A的化学式是___________;

(2)C物质在反应③中的作用_________;

(3)写出反应②、④、⑥的化学方程式: ② ___________________________;

  ④_______________________;⑥_______________________;

(4)若将合成气中两气体按分子数之比为1:1进行化合(原子利用率为100%),可合成多种有机化工产品,写出其中一种可能产品的化学式_________。

题型:阅读理解

密闭输油管道压力自动保护分二级,一级保护按()压力动作,切断全部机组。

A.极限

B.临界

C.工作

D.试验

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