The Aurora Boreal is has always been a source of Wonder to observers who live close to the artic circle and occacionally to those much closer to the equater. It is cooposed of dancing, lights that consiantly change color and brillance Shiemering curtains rays, nebulalike shirls arcs, are some of the forms observed on the earth.
Strong auroras are accompanied by dramaticelectric and magnetic effects on the earth. They are a promise of terrestrial power Geophy icists see the space inmediatly beyond the 10 earth´s atmosphere as a huge electrical generator Which develops power as the changed particles of solar wind pass through the cath´s geomagnetic field. This power accelerates the solar wind toward the earth´s surface. Where thy collige with ators in the upperatmosphiere. Auroras are therefore visible manifestations of great anguats of power being “BURNED OFF”
1. Which of the following statements in true according to the text?
Aurores minght supply men with energy
Aurores can create a huge geomagnetic field
Aurores are strong when the tirth is magnetized
Aureres are usually visible in regions near the ecuator
2.- When the author refers tothe Aurora Borealis as a souice of wonder the means that?
It creates doubt in people
People are toughtened about it
It causes admiration in neorie
People are suoertitious about it
The world is running out of oil and energy exports belive that there could be serious shortages in ten years time.
Only is each individual using more oil than ever before as the standard of living inindustrialized countries rises. But the population explosion means that each year any more people will be using oil in some form or other. Until recently we took oil her granted.
It was so cheap and plentiful than the whole world came to depend on ( it now) governments are searching for a suitable alternative. Sut so far in vain.
3. The governments efforts to solve the problem of the lack of oilhave open:
4.- When the author says we look oil for granted the means that:
We got used wastine oil
We knew oil
We didn´t consider oil indispensable
We thought oil would never stop flowing
5.- Which of the following statements is true according to the text
The world has less oil every day
The world doesn´t dependon oil anymore
The use of oil is being controlled by sxports
Individuals are not using as much oil as they did before
6.- I think a monkey is ________ useful than a horse.
7.- ___________ should be nice _________ to Acapulco
8.- I ´m sure there is __ hidden _______ in this room
9.-A: ______ tickets did she buy?
10.- ______ there many flowers in the vase?
11.- Gloria sang the _________ beautiful song in the contest and won the prize
12.- My son is only sisteen and he is ________tail __________I
13.- Did Liz offet _ Peg?
14.- ____________ you _______- for long?
Have /been waiting
Are /been waiting
15.- The car didn´t turn ______ the right on time
16.- Rick wants to go __ witn his work . Don´t interrupthim
17.- George hasn´t finishes and it´s getting__________
18.- John didn´t buy the guitar. He had ___________ money
19.-The boys ________ never ____ that game before.
20.- Helen does _____________
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