Scientists study the world and learn about things using a process called the scientific method(方法). By asking important questions and 16 the answers, it is possible to make amazing discoveries! Sometimes a scientist is 17 to answer his own questions, but if he has taken good notes another scientist may come along later who is able to use new knowledge to answer it.
When you use the scientific method to 18 an experiment, you start by making observations(观察) about something that 19 you. Based on your observations, you make a hypothesis. This is using 20 you know to make a smart guess about what you think could happen. Then you are ready to begin your experiment. All 21 your experiment you take down notes, which are 22 experiment date(资料). You are constantly making observations during this time. You may make discoveries that cause you to improve your experiment as you go. 23 , you conclude your experiment and begin to look over your notes to decide what it all means. Based on what you have learned, you make a final statement about 24 your hypothesis was correct or not. You have to have reasons and evidence to support what you are saying.
Using the scientific method can be difficult, but rewarding. Because all the steps are organized in a process, the 25 are more valid(可信的). When you provide observations as evidence to support what you are saying, your ideas are more likely to be accepted.
A．waiting for B．searching for C．worrying about D．complaining about
A．unable B．sure C．ready D．surprised
A．read B．refuse C．prevent D．conduct
A．hurts B．represents C．interests D．attacks
A．what B．when C．why D．which
A．without B．including C．except D．during
A．controlled B．arranged C．called D．carried
A．Obviously B．Suddenly C．Finally D．Mostly
A．whether B．what C．how D．when
A．problem B．results C．services D．aims
Farley worked for the Canadian government. One day, he was ___ to learn more about wolves. Do wolves kill lots of caribou(北美驯鹿)? Do they kill people?
They gave him lots of food and clothes and guns. Then they put him on a plane and took him to ____ . The plane put him down and went away. There were no houses or people in this place. But there were lots of animals and lots of wolves.
People tell terrible stories about wolves. They say wolves like to kill and eat people. Farley remembered these stories, and he was ____. He had his gun with him___ .
Then one day, he saw a group of wolves. There was a mother wolf with four baby wolves. A father wolf and another young wolf lived with them.
Farley watched these wolves every day. The mother was a very ____ mother. She gave milk to her babies. She gave them lessons about life. They learned how to ____ food. The father wolf got food for the mother. The young wolf ____ the children. They were a nice, happy family—wolf family! Farley did not need his ____ any more. In a short time, he got on well with the family. Farley watched them for five months. He learned that many stories about the wolves were ____. Wolves do not eat people, and they do not eat many large animals. And he also learned bad things about men. It was men who killed many caribou and wolves.
Later, Farley wrote a book about wolves. He wanted people to ____ them and not to kill them.
A．seen B．told C．heard D．found
A．a small town B．a big city C．a far place D．a lonely village
A．afraid B．happy C．angry D．tired
A．at times B．all the time C．once a week D．every afternoon
A．bad B．good C．hungry D．thirsty
A．cook B．make C．get D．pick
A．shouted at B．looked into C．laughed at D．played with
A．food B．clothes C．gun D．plane
A．not good B．not true C．not easy D．not clear
A．grow B．have C．teach D．understand
Hundreds of years ago in a small town, a moneylender lent a lot of money to a poor man. The moneylender , who was old and ugly, the poor man’s beautiful daughter. So he came up with an idea. He said the poor man didn’t need to return the money to him he could marry his daughter. Both the man and his daughter were .
The moneylender then told them that he would put a small stone and a small white stone into an empty bag. The girl would have to one. If she took the black stone , she would become the moneylender’s and her father’s debt(债务) would be let go. If she picked the white stone, she didn’t need to marry him and her father’s debt would be let go. Her father would be put into prison if she refused to pick a stone.
As they talked, the moneylender picked up two stones. As he did that, the girl that he had put two black stones in the bag. He then asked the girl to pick her stone from the bag.
The girl thought for a while and then had an idea. She put her hand into the bag and took out a stone. looking at it, she let it fall onto the path where it became lost among all the other stones. “ Oh how I was！” She said, “But never . If you look into the bag for the one that is left, you will be able to which stone I picked.” This tells: Sometimes we can think about things in a way. Most difficult problems do have an solution.
A．pleased B．attracted C．loved D．saw
A．if B．unless C．so D．but
A．bored B．frightened C．relaxed D．excited
A．pink B．red C．black D．yellow
A．show B．drop C．check D．choose
A．daughter B．cousin C．wife D．friend
A．again B．still C．never D．hardly
A．said B．feared C．thought D．noticed
A．On B．About C．For D．Without
A．usually B．surprisingly C．immediately D．slowly
A．worried B．clever C．careless D．lucky
A．laugh B．mind C．cry D．complain
A．tell B．explain C．ask D．arrange
A．saying B．story C．news D．man
A．careful B．funny C．different D．normal
“Er, er, er…… I’m sorry I forget my words.” Tom rushed out of the hall with his face red. People afraid of speaking in public are suffering from “Stage Fright”. Stage fright makes a person . In that it can make one's mind go blank(空白) and forget one ought to say, or to act. Actors, musicians, dancers, lawyers, even TV show hosts suffered from stage fright at one time or .
Diana Nichols is an expert in helping people free from stage fright at a medical center in New York City. She helps actors learn to themselves. Miss Nichols says some people have always been to perform before the audience. Others, she says, develop stage fright after a terrible experience.
She offers them advice to control the fear. One way is to smile going onto the stage. Taking two deep breaths helps. Deep helps you get control of your body.
Miss Nichols asks her patients to tell themselves that their speech or performance does not have to be . It's to make a mistake. She tells them they should not be too nervous while they are performing. It is important that they should continue to perform while she is helping them. After each performance, they discuss what happened and find out what helped and what did not.As they perform more and more, they will fear . Miss Nichols says the aim is only to reduce stage fright, not to smooth it away . This is a little stage fright makes a person more careful, and improves the performance.
A．joyful B．unhappy C．nervous D．hopeless
A．case B．mood C．sense D．condition
A．when B．what C．how D．whether
A．others B．other C．another D．the other
A．cure B．control C．hold D．protect
A．satisfied B．happy C．afraid D．surprised
A．since B．until C．during D．before
A．too B．as well C．also D．either
A．breathing B．to breathe C．to have breathed D．breathes
A．perfect B．fine C．good D．pleasant
A．incorrect B．important C．unnecessary D．all right
A．people B．advice C．words D．measures
A．less and less B．fewer and fewer C．more and more D．smaller and smaller
A．practically B．easily C．completely D．really
A．why B．that C．since D．Because
We all dream about things that we would like to do and things. we hope in the future. But are everybody’s dreams the same? Here are some of the of a survey about hopes and dreams, which thousands of students across China .
What are the hopes of teenagers?
We received several different answers the question: what would you like to do after finishing your education? It seems some students would like to start work as soon as , so that they can help better lives for their parents. Other students hope to continue after finishing school and to go to university.
What are the dreams of teenagers?
Teenagers have all kinds of dreams. Some are more realistic than others. But according to the survey, less realistic dreams are also , but many students reported that they work hard to achieve their dreams. Quite a few dream of becoming famous, perhaps famous sportspeople or singers. Some said they’d love to go on exciting trips; one student said she’d love to sail the Pacific Ocean. And then there are dreams that are three students said they’d like to be able to !
Conclusion It was clear from the survey teenagers have similar hopes. It seems that most students hope to have a good education and find a good job. On hand, students dream of very different things: good things, and even crazy things. It is very important to dream, so your dreams; one day they may just come true.
A．to achieve B．achieve C．to come true D．realize
A．result B．finds C．findings D．discovery
A．take part in B．took part C．took part in D．take part
A．of B．for C．to D．at
A．he can B．they can C．he could D．they could
A．offer B．give C．provide D．send
A．study B．studied C．studying D．to study
A．the same B．different C．similar D．common
A．are able to B．were disabled to C．were willing to D．are willing to
A．cross B．through C．on D．across
A．realistic B．boring C．possible D．impossible
A．walk B．run C．fly D．jump
A．which B．that C．what D．why
A．one B．other C．another D．the other
A．hold on B．held on to C．be held on to D．hold on to
As we all know, eating habits are different in different countries. The Chinese have a . “Eat good things for breakfast, eat a big meal for lunch, but eat at dinner.” Many Americans agree that one should start the day with a good breakfast, but their about lunch and dinner are different.
Most Americans only give a short time for lunch. So they eat a small lunch. After work they will have more time to eat a big dinner. Talking about their day with all the family is a great way to take a good rest after a long, hard day of work.
Eating at restaurants is also different. In China, people like to talk and laugh while . Very often you can hear people talking and laughing , and they are just having a good time. In America it is not like this. If someone is talking too loudly at table, the manager of the restaurant may and ask them to be quiet. After dinner, it’s thought quite rude if you leave you finish eating. You are expected to stay and around the dinner table.
So if you want to be , there’s an English saying, “When in Rome, do as Romans do.”
A．saying B．word C．sentence D．Information
A．little B．less C．few D．fewer
A．languages B．food C．ideas D．words
A．ourselves B．yourselves C．themselves D．oneselves
A．cooking B．eating C．playing D．speaking
A．quietly B．easily C．hardly D．loudly
A．come on B．come in C．come out D．come up with
A．as soon as B．until C．when D．while
A．say B．talk C．tell D．speak
A．rude B．kind C．polite D．Happy
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