阅读下面短文，根据以下提示：1）汉语提示，2）首字母提示，3-优题课

The way we cook is important. In many countries, the two choices are (nature) gas or electric-powered stoves.
The World Health Organization warns that millions of people (suffer) from indoor air pollution at present time, which results from the use of (danger) fuels and cook-stoves in the home.
WHO officials say nearly three billion people are (able) to use clean fuels and technologies for cooking ，heating and lighting. As a result, more than seven million people die from exposure to indoor or outdoor air pollution each year. Most of the deaths are in （develop） countries, such as lndia, China and Latin American countries.
WHO officials say opening a window or door （let）out the harmful air will not correct the situation will only pollute the outdoors.
Nigel Bruce, is a professor of Public Health at the University of Liverpool, says researchers are developing good cook-stoves and other equipment to burn fuels a more efficient way.
But, this is just a start. It is urging developing countries to use (clean) fuels and increase access to cleaner and more modern cooking and heating appliances（用具）.

Eleven-year-old Angela was stricken with a disease involving her nervous system．The doctors did not hold out much hope of her ever recovering ____ this illness．They predicted she’d spend the rest of her life in a wheelchair．_ Angela firmly believed that she was definitely going to be walking again someday．The doctors were charmed by her ____（defeatable）spirit．They taught her about imaging—about seeing herself _（walk）．Angela would work as hard as possible in physical therapy(理疗），lying there faithfully doing her imaging，visualizing herself moving，moving，moving!
One day，____ she was straining with all her might to imagine her legs moving again，___ seemed as though a miracle happened: the bed moved! She screamed out，“Look what I ___（do）! Look! Look! I can do it! I moved，I moved！” Of course，____ this very moment everyone ____ in the hospital was screaming，too．It was the San Francisco earthquake．But don’t tell ___ to Angela．She’s convinced that she did it．And now only a few years later，she’s back in school．On her own two legs．No walking sticks，no wheelchair．

Recently a new science behind incentives(激励), _(include) in education, has been discussed. For example, researcher Roland Fryer wanted to see what works best in motivating children ___(do) better in school. ___some cases, he gave students incentives based on input(输入), like reading certain books, while in ___, the incentives _(base) on output, like results on exams. His main __ (find) was that incentives increased achievement when based on input but had no effect when based on output. Fryer’s conclusion was that the incentives for inputs might be _____ (effect) because students do not know how to do better on an exam, apart from general rules like “study harder”. Reading certain books, on the other hand, is a well-set task over ____they have much more control.
As long as you have direct control over your goal, you have ___ much higher chance of success. And it’s easier to start again _you fail, because you know exactly what you need to do.

Husband: Honey, what are you doing with your nose in the newspaper all afternoon? Is it that (interest)?
Wife: I have no interest in the news reports, but the apartment ads. Don’t you think we should get a larger apartment our present one?
Husband: This apartment is fine. It’s big enough for us.
Wife: is obvious that this apartment is too small. We (live) here since we got married. We need a change.
Husband: I’d rather stay here. I love this old place. , we don’t need all that extra room.
Wife: Yes, we do. We need extra bedroom. Then it’ll be more comfortable for our baby.
Husband: Our baby? Are we having a baby?
Wife: Yeah, we are going to have a baby. I have been waiting for the right moment to surprise you with the news.
Husband: This is a huge surprise! I’m so happy I can hardly believe it! But where will we get enough money (buy) a larger apartment?
Wife: Don’t worry. I think we can afford a more expensive apartment. Look, you got a raise last month. And my salary will (certain) help.
Husband: Well, yes, good point. I guess we should look at a few apartments. It’s time we (move).

In many countries, _____ is not unusual for families of different backgrounds to live together in the shared space. _____, in the United States, this idea may still be considered strange.
But this type of housing, _____(call) co-housing, is gaining ___ (popular) in the United States, too. Co-housing complexes are popping up across the country. For many people, this way of life is a relief to the busy modern lifestyle. A co-housing community has ______ (private) owned houses and shared land. There is often a “common house” with _____ kitchen and dining room, meeting room, and maybe a workshop of library or music room. About 25 co-housing communities ____ (build) in recent years, and 150 more are planned.
A co-housing complex is a place _____ residents shop, cook, and eat together. Residents of a co-housing complex like its sense of shared community. Children have other kids to play _____, which many families like. Other residents like the feeling of living in a “village”. Residents also say that they can live in co-housing for _ ___ money than they would pay for nearby apartments.