1.聽材料,回答問題。 (1)Where did Sally go last month? A.South Africa. B.America. C.Egypt. (2)How long did she stay there? A.For one week. B.For two weeks. C.For three weeks.
2.聽材料,回答問題。 (1)Which lesson is Helen best at? A.History. B.English. C.Geography. (2)When did Helen enter a math competition? A.Last Tuesday. B.Last Thursday. C.Last Friday.
3.聽材料,回答問題。 (1)What are the speakers mainly talking about? A.Changes. B.Sports. C.Unhealthy food. (2)What does the woman mean? A.She doesn't believe in him. B.She thinks he can make it. C.She doesn't care.
4.聽材料,回答問題。 (1)Why was the woman walking in the street? A.She was coming home from the shop. B.She was looking for the two men. C.She was going to the club. (2)Which word can best describe the woman? A.Nervous. B.Strong. C.Weak.
controlling fire.We do know that people have been using fire for millions of years.Its many uses helped them to survive. In the beginning,people probably used fire for three purposes:to stay warm,to keep wild animals away,and to have light in the darkness.People built fires and stayed(2)
to them because bears and wolves would stay away from the flames.They slept near the fire for warmth,as well. Eventually,people discovered that roasted meat tasted good.Soon they were cooking their meat and fish.Cooking kills germs.As a result,people became sick less often. Early people thought of more(3)
for fire.Using smoky torches,humans forced bees to leave their hive.This resulted in the people getting honey.They discovered that fire could be used for hunting,too. Over time,people figured out that they could grow seed-bearing grass such as wheat.They needed a way to clear a field quickly so that they could plant what they wanted.It was much easier to burn a field than to cut down every bush and tree. (4)
people had farms,they also built houses.Each home had a fireplace.Even 150 years ago a fire was always burning in most homes so that people could make soup and hot drinks at any time. Today small fires burn in our homes in our gas furnaces,water heaters,stoves,dryers,and fireplaces.Thus,fire continues to help us thrive.
32.That Susan is so funny...I need to bring the car to the wash tomorrow...why is this person so loud...here comes the sun,doo-doo-doo. We often find ourselves in an endless thought loop (圈).And every so often,we try to stop this endless flow of thoughts by telling ourselves to just stop thinking.But do we or can we ever really stop thinking? It depends on your definition (定義) of "thinking",according to Michael Halassa,the US.We basically go through each day in one of the two states—we either realize that we're thinking or we don't.Our brains won't stop thinking completely until we die. "The brain never stops thinking in a sense.Most thoughts are actually in the background without us noticing them and there's not really a way to turn these things." Halassa said. You can compare this to how a computer works.When you aren't using your computer while it is turned on,it is still running operations "in the background".Your computer,much like your brain,even if you're not actively using it. "If you see a familiar face in a crowd and think you know them,you might not be able to come up with how you know them right away," Halassa said. "But maybe hours later,you'll suddenly remember.That's a result of your brain thinking in the background." We even make decisions mostly unconsciously or without realizing them.For example,some of this background "thinking" results in what we call a "gut feeling (直覺)".During our brain's decision-making process (精確的),sometimes it's not. Even sitting here reading this,thinking about "thinking" is sending messages across chain of neurons (神經(jīng)元) in the brain.So if we somehow manage to stop ourselves from "thinking",the brain won't sign off.It will continue to have thoughts—we just won't realize them.
(1)When you are in an endless thought loop,you
. A.can think about a problem very clearly B.keep thinking about one thing after another C.cannot stop thinking about things in the past D.keep thinking about one thing again and again (2)What does Paragraph 5 try to tell us?
A.Human brains are thinking all the time. B.A computer can think like a human brain. C.Human brains work faster than computers. D.A computer can deal with plenty of information. (3)The word "unconsciously" in Paragraph 7 probably means "
". A.carelessly B.unknowingly C.fearlessly D.undoubtfully (4)What's the best title for the passage?
A.Will We Continue to Have Thoughts after We Die? B.How Do the Neurons in the Brain Work? C.What Is the Definition of "Thinking"? D.Can We Ever Really Stop Thinking?