题目内容
A successful experiment (实验) in the deserts of Dubai (迪拜) may deal with hunger around the world. A team of Chinese scientists has tried to develop a kind of rice that grows in salt water. Not only that, it produces far more rice than you can imagine.
Back in January, 2018, the researchers were invited to plant some of the saltwater rice in different areas of the desert. Usual water is too expensive to waste on rice in those desert areas. After five months of growth, they produce up to 7.8 tons of rice a hectare (公顷). At the same time, the world average (平均数) stands at 3.3 tons a hectare.
The researchers from China are continuing the experiment by setting up a 100-hectare salt-water rice farm in 2019. It will show the costs of production and different farming skills. They hope to plant saltwater rice on more farms in 2020.
Their dream is to cover up to 10% of the country with the saltwater rice fields—and if the skills are successful in Dubai’s bad farming weather, then the farms could “feed the whole Arab world and they help to ensure (确保) food security (安全)”.
Yuan Longping is the “father of hybrid rice” and leader of the research group. He says that there are over l million square kilometers of land in China that is not used because there is too much salt in the soil. By planting saltwater rice on just one-tenth of this land, we hope it will feed over 200 million more people.
1.What kind of water do the researchers use to grow rice?
A.Usual water. B.Salt water. C.Hot water. D.Cold water.
2.What can we learn from Paragraph 3?
A.The researchers from China won’t plant saltwater rice on farms in 2020.
B.The experiment of setting up saltwater rice farm will cost much money.
C.Chinese researchers hope to plant saltwater rice on more farms by doing experiments.
D.The experiment won’t show any different farming skills.
3.What does the underlined word “they” refer to?
A.The farms. B.The skills. C.The scientists. D.The Arab world.
4.What does Yuan Longping think of saltwater rice?
A.It’s terrible. B.It’s impossible. C.It’s unnecessary. D.It’s hopeful.
Frank is a student. He likes playing with his phone very much. And he keeps the phone with him at all times. His dad thinks he is addicted (上瘾的) to his phone. But Frank doesn’t think so. They write to each other.
Dear Frank, You’ve heard the warnings. It’s reported that fifty percent of the teenagers depend on their phones too much. I think you have this problem too. That’s why I think you should give up your phone. Not forever, just for a week. I’m worried that you are developing some bad habits. You keep your phone with you all the time – you even check the basketball scores at the dinner table. It’s not a good idea to use your phone while you are doing homework. You can’t put your heart into your homework at all. And you may make more mistakes when you can’t fully put your heart into it. There are many good reasons to take a break from your phone. Have a try! So what do you say? Are you ready to give up using your phone? Love Dad |
Dear Dad, I know you think I depend on my phone too much. But I’m just using technology to help my life to be better. My phone helps me in many ways. Do you remember that time when the car broke down? I sent a message to tell you that I was going to be late. If I didn’t, you would be worried about me. My phone helps me with my homework too. I can look up anything in a second. It’s really hard to be successful today if you don’t have a phone. Social media, games, and apps might seem silly to you, but they help me to keep in touch with my friends. I promise to cut back my phone use, and I won’t use it at the dinner table anymore. But giving it up for a week would be a mistake and it wouldn’t change anything in the long term. Love Frank |
1.How long does Frank’s dad advise him to give up his phone?
A.For a week. B.For a month.
C.For a year. D.Forever.
2.How many teenagers are addicted to the phones according to the passage?
A.Thirty percent B.Forty percent
C.Fifty percent D.Sixty percent
3.What does Frank think of social media, games and apps?
A.They make him smart.
B.They make him relaxed.
C.They help him make lots of money.
D.They help him keep in touch with his friends.
4.What can we learn from the passage?
A.Frank thinks it is a waste of time to use phones.
B.Frank sometimes uses his phone to look up something.
C.All teenagers depend on their phones too much.
D.Frank’s dad thinks it’s OK to check basketball scores at dinner time.
书面表达
近来网络上流行一句话：“世界上最远的距离是我在你对面，你却在看手机。”这句话真实地反映了当前的社会现象。成年人和小孩们都花大量的时间用手机做着不同的事，“手机控”、“低头族”越来越多且呈年轻化趋势。这既不利于我们的身体健康，又影响了我们的学习和生活，形势令人担忧。请你以“My opinion on using the mobile phone”为题，针对这一现象发表个人观点，给大家提提建议。
My opinion on using the mobile phone | Situation (状况) | spend too much time, use mobile phones… |
Results | be bad for our eyes, have less time… | |
My opinion | … |
提示词：a mobile phone freak手机控
要求：1. 短文条理清楚，行文连贯，内容可适当发挥；
2. 短文中不得出现真实的人名和地名；
3. 词数不少于80，开头已给出，不计入总词数。
My opinion on using the mobile phone
Mobile phones are widely used these days. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Big data (数据) is a lot of sets of information that are put together so they can be used by a computer program. The computer program looks for different kinds of answers or patterns in the data. Big data can have different kinds of information from many sources, such as information that comes from schools, social media sites, companies and governments.
Big data can be used in many ways. The government uses it to understand how many people travel on buses or trains. This information is then used to make bus or train systems better. Some schools use big data to understand which children may need extra help in class. The teacher can then give certain students more help or support so those students can succeed in school. Companies use big data, too. It helps them understand who buys their products. For example, one company uses weather data to see when people eat the most ice cream.
Big data can be used for good reasons. Some hospitals use big data to predict if a baby who is born too early will get sick. The hospital can then take extra steps to take care of that baby so he or she does not get sick. Big data can also be used for bad reasons can be used to predict which kinds of people probably break the law or hurt others, even if they have not done anything wrong
How can big data be used for good and bad thing? It is because the computer programs which are used to look at big data and understand it are written by people. People think a certain way and build a model of the ideas. These ideas are then used to look at the data. Sometimes, these ideas are helpful for people or businesses. Other times, bad ideas can cause problems for certain groups of people.
An 1.to Big Data | |
The meaning of big data | It is many sets of information that are put together so they can be used by a computer program. And it can have different kinds of information from many sources. |
Usages of big data | ●The government uses it to do researches on how many people use 2.like buses or trains to improve bus or train systems. ●Some teachers use it to know who may need extra help in class so that they can help or support the students more in school. ●Companies use big data to understand their 3.habits. |
Reasons for using big data | ●On the one hand, hospitals use it to make 4. about the health conditions of babies who are born too early. And the hospitals can take better care of them. ●On the other hand, it can be used to predict which kinds of people probably break the law or hurt others, even if they have not done anything wrong. |
Conclusion | Big data has been widely used nowadays. It can be helpful, but sometimes, It can also cause problems. That 5. the ideas of the people who write the computer programs. |