Because of the COVID-19 , some people that there might not be enough food in store so they should buy as much as possible in case.A.worried B.worry C.have worried D.will worry 题目和参考答案——青夏教育精英家教网—

题目内容

Because of the COVID-19 (新冠病毒), some people________that there might not be enough food in store so they should buy as much as possible in case.

A.worried B.worry C.have worried D.will worry

练习册系列答案

相关题目

—Can you tell me ________ last night?

—Yes. She felt tired, so she stayed at home all night.

A.why didn’t Helen come to the party

B.when Helen went to the party

C.where Helen was

She’d like to join the music club because she________play the piano well.

A.can B.may C.must

Big data (大数据) 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. One set of data can have people’s names and addresses. Another set can have what they like, where they go to school, and how much time they spend on the computer.

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 (预测) 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, she does not get sick. Big data can also be used for bad reasons. It can be used to predict which kinds of people are likely to break the law or hurt others, even if they have not done anything wrong.

How can big data be used for good and bad things? It is because the computer programs used to look at big data and understand it are written by people. People think a certain way. Because they think a certain way, they build a model of those 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.

1.What is the first paragraph about?

A.What big data is and how it is used.

B.Why we can use big data in a number of ways.

C.Where important data is collected and stored.

D.What big data is and how it is collected.

2.How does the writer show that big data is useful from the reading?

A.Big data is widely used in every field.

B.Big data seldom brings any harm to people.

C.Everyone can get information from big data easily.

D.People can make certain right decisions according to big data.

3.What can we infer from the reading?

A.If there is plenty of information, it is called big data.

B.Big data provides any information for the government.

C.We should make full use of big data to serve the society.

D.Big data only collects the latest information from the world.

4.The overall tone (总基调) of this reading is ________.

A.sad and personal B.personal and scientific

C.informative but silly D.scientific and informative

—What do you think of the advantage of shopping online?

—We________spend much time going from one shop to another.

A.shouldn’t B.needn’t C.mustn’t D.can’t

There are very________fish in this river now. The factory nearby keeps pouring polluted water in it.

A.fewer B.less C.few D.little

We live in a fast-paced(快节奏的), technology-packed world where we spend most of our time indoors playing computer games or using social media(媒体). But do you remember when you spent most of your time outside, running, playing, and laughing with your friends?

Leaving your tech behind may seem difficult, but if you lose yourself in nature, you’ll probably forget all about it. Scientist Albert Einstein once said, “Look deep into nature, and then you will understand everything better.”

In the US, June is Great Outdoors Month. They want to get more kids outside to have active fun once again. Former(前任) US President Barack Obama wrote in a paper declaring(宣告) the day in 2012, “Nature offers each of us the chance to get active, discover something, and make our relationships with family and friends strong.”

The US Union Creek Resort website noted, “We all know how fast life can be, so it’s never too soon or too late to create happy memories that we will cherish and share forever.”

Besides making us feel happy, science supports the idea that outdoor activities can cut down stress. “Fresh air and sunlight have the largest advantages,” wrote Susanne Preston, a mental health expert at South University, US. “With increased exposure(暴露) to natural sunlight, incidents of seasonal affective disorder(季节性情绪失调) fall and the vitamin D in people’s skin helps to relax their moods(心情).”

What could be a better way to help out with daily stress than to enjoy the beauty of the great outdoors?

根据短文内容选择最佳答案。

1.The underlined word “cherish” in the passage means “________” in Chinese.

A.欢呼 B.珍惜 C.振奋

2.The writer wants to tell us to ________.

A.play computer games B.live in a fast-paced world C.spend more time outdoors

3.The word “it” in Paragraph 2 refers to(指的是) ________.

A.your friends B.your tech C.nature

4.Which is NOT TRUE according to the passage?

A.Barack Obama is US President now.

B.We spend most of our time staying indoors.

C.Nature can make our relationships with family and friends strong.

5.What is the main idea of the passage?

A.Leaving your tech behind may seem difficult.

B.It’s nice to enjoy the beauty of the great outdoors.

C.There is only one way to deal with daily stress.

You don’t need to look up every new word _______ your dictionary while reading. You should try to guess the meaning.

A.in B.at C.for

—Why not come and join us in the game?

—__________, but I must meet Mr. Smith at his office now.

A.I'd like to. B.Let's go C.Yes, please D.It's a pleasure

试题分类