Millions of people around the world cook their food over smoky fire every day.It is often difficult to find wood for the fire .People who do not have wood must spend large amounts of money on cooking fuel. However, there is a much easier way to cook food using energy from the sun.
Solar cooker, or ovens,have been used for centuries.A Swiss scientist made the first solar oven in seventeen sixty-seven. Today ,people are using solar cookers in many countries around the world. People use solar ovens to cook food and to heat drinking water to kill bacteria and other harmful organisms.
There are three kinds of solar ovens.The first is a box cooker, It is designed with a special wall that shines or reflects sunlight into the box .Heat gets trapped under a piece of glass or plastic covering the top of the cooker. A box oven is effective for slow cooking of large amonts of food.
The second kind of solar oven is a panel cooker. It includes several flat walls.or panels.that directly reflect the sun’s light onto the food. The food is inside a separate container of plastic or glass that traps heat energy. People can build panel cookers quickly and with very few supplies. They do not cost much.In Kenya ,for example ,panel cookers are being manufactured for just two dollars.
The third kind of solar oven is a parabolic cooker.It has rounded walls that aim sunlight directly into the bottom of the oven .Food cooks quickly in parabolic ovens .However, these cookers are hard to make.They must be re-aimed often to follow the sun .Parabolic cookers can also cause burns and eye injuries if they are not used correctly.
You can make solar ovens from boxes or heavy paper. They will not catch fire. Paper burns at two hundred thirty-two degrees Celsius. A solar cooker never gets that hot. Solar ovens cook food at low temperatures over long periods of time. This permits people to leave food to cook while they do other things.
1.What is the main purpose of the author in writing the passage?
A.To tell the readers how to make solar ovens.
B.To advertise the solar ovens.
C.To give the readers brief introduction of solar ovens.
D.To help readers to save cost on fuel.
2.According to the passage we can conclude that ______.
A.panel cooker is the cheapest oven of the three
B.panel cooker is easy to make
C.box cooker is easy to make
D.box cooker is the most effective oven
3.If you have much food to cook ,you’d better choose .
A.a box cooker | B.a panel cooker |
C.a parabolic cooker | D.a paper cooker |
4.From the passage we know that .
A.solar cookers are dangerous to use
B.solar cookers don’t burn while cooking
C.solar cookers cost less than other cookers
D.Swiss often use solar cookers while cooking
Book three is ______ most difficult book,but is isn’t ______ most difficult one in Senior school books.
A.a;a | B.a;the | C.the;the | D.the;a |
II卷(共35分)
第四部分:任务型阅读
认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
Speaking in public is most people's least favorite thing. The reason is that we are all afraid of making fools of ourselves. The more important the speech is, the more frightened we become. In fact, public speaking is not a "gift" like musical talent. Anybody who can talk can speak in public. Here are some of the lessons I have learned:
Try to make your idea clear and brief. If you can't express what you intend to get across in a sentence or two, and then your speech is not focused well enough. If you don't have a clear idea of what you want to say, your audience will make no sense. After all, what you can impress your audience in your speech is one or two of your main ideas. One or two. Not ten or twenty.
No matter how long or short your speech is, you've got to organize it well-how you are going to open, what major points you want to make and how you're going to close. A strong close is critical: the last thing you say is what your audience will most likely remember. When I do a radio or TV piece, I often write the last sentence first. When you know where you' re headed, you can choose any route to get there.
Finally, you'd better limit the time of your speech as properly as you can to hold the audience's curiosity. Take a vaudeville act (杂耍) for example. The standard length of one is usually 12 minutes. Just imagine how you are feeling if you have been watching all the performers singing and dancing their hearts out for more than the standard time
Title: How to make a 71 speech | ||
Techniques | Reasons | Requirements |
Keep it brief and clear | You should 72 your speech well enough. | Prepare one or two of your main ideas. |
The audience will not catch you well if your idea is 73 . | ||
Get your speech well 74 | Knowing where you are going, you can make a better 75 of the route to get there. | Know very well about the 76 , body and ending of the speech |
Keep your speech time 77 | Your speech should not be too long so as to make your audience 78 | Limit the time of your speech in a 79 way. |
If you don't, the audience will be 80 . |