【题目】 If our bodies actually suffer from eating too much sugar, then why do we like it? And why don 't we have such a strong eager for food like, say, broccoli (西兰花)which is a great source of Vitamin C,Vitamin K iron, all things our body actually needs? If it's so bad for us, then why does sugar taste so good? There are hundreds of journal articles trying to answer that very question. Let' s take a look at what they' ve come up with.

Studies have shown that the love children have for sugar may be born with. In other words, kids may have a built-in love of all things sweet. The preference for sweet foods is found to be already evident in newborns, who prefer sweeter formulas (配方). It also seems to be shared by children globally across cultures and climates. There’s further evidence that kids’ taste buds (味蕾) are more sensitive to bitter-tasting foods, further pushing them to reach for the sweets. One study showed that adults tend to maximize their sugar preference at about the level of sugar in a can of soda, but older children still liked drinks that were twice as sweet. The scientists couldn't find a limit to the concentration of sugar younger children preferred. It turms out that the kids still liked the sugary drink even past the point where there was too much sugar to be dissolved (溶解) in water anymore.

Sugar gets a bad fame, but it isn't all bad. Sugar provides our bodies with calories, which we can then change into energy. Children, in particular, need this energy to fuel their rapid growth. Sugar also helps us store fat, which can be drawn on later if needed. Our body knows to pursue the things it needs as two way of signaling our brain to start eating what we’re missing.

As a vegetarian (素食主义者)I know that when I start thinking about stealing the peanut butter sandwich that's been floating around in my kid' s backpack, it' s probably not because the sandwich is so delicious. It' s more likely that I haven't gotten enough protein for the day.

1What makes so many people study sugar?

A.High sugar intake.

B.Curiosity about Sugar.

C.The love for sugar.

D.The magic effect of sugar.

2What do the studies show about eating the sweets?

A.Loving sugar is human's nature.

B.A vegetarian doesn't like sugar so much.

C.The older one is, the more sugar one needs.

D.The love for sugar depends on living habits.

3How does sugar impress us according to the text?

A.Deadly but irresistible.

B.Beneficial but harmful.

C.Necessary but not welcome.

D.Useful but not nutritious.

4Why does the author steal his kid's food?

A.To store more protein,

B.To treat his illness.

C.To avoid his kid eating more.

D.To meet body' s needs.

【题目】 One of the most critical roles forests play is relieving climate change. Trees suck enormous amounts of carbon dioxide out of the air and fix the carbon in their wood and the soil. A recent study found that planting new trees over an area the size of the US could suck away two thirds of all the carbon dioxide discharge that humans have pumped into the atmosphere.

“Without animals, it is harder for forests to absorb carbon, as tree species (种类) important for protecting the climate could be lost without animals", Susanne Winter, a program director said at the WWF.

In Africa, many of the tree species that absorb the most carbon rely on large birds and primates (灵长类动物) to eat their fruits and spread their large seeds, according to the report. Without them, those trees would have difficulty reproducing and forests would lose their best carbon-storing trees.

“Forests are our greatest natural ally in the fight against global warming, ”Winter said.“If we want to hold back the worldwide decline in biodiversity and prevent the climate crisis,s we need to protect the forests and the species living there.

Forests also filter (过滤) water-- as water makes its way to lakes or groundwater reserves, the roots and soil separate it from deposits and pollution that it collects along the way. What' s more, forests regulate the global water cycle, since trees' leaves, branches, and roots store or send out water vapor.

Climate models show that forest-cutting down in Central Africa could lead to a 15% drop in rainfall in the US Midwest, and Amazon deforestation (森林滥伐) could cut Texas rainfall by 25%.

Humans also get food, wood, and medicine from the abundance of plants and animals in forests. Worldwide, 1.6 billion people rely on forests for their livings, according to the United Nations. About 300 million people live in forests, according to WWF.

1What's the purpose of Paragraph 3?

A.To tell where the large seeds go.

B.To show the tree species in Africa.

C.To draw reader' s attention to Africa.

D.To support Susanne Winter’s opinion.

2What does the underlined word“ally" in Paragraph 4 probably mean?

A.Winner.

B.Competitor.

C.Partner.

D.Victim.

3How do forests change climate according to the passage?

A.By affecting air and water.

B.By feeding birds and animals.

C.By providing life necessities.

D.By increasing the variety of trees.

4What can be inferred from the passage?

A.Water should be filtered.

B.The more forests, the more rain.

C.Forests should be globally protected.

D.Half the carbon dioxide is sucked away by trees.

【题目】阅读下面短文,根据所给情节进行续写,使之构成一个完整的故事。

There was a rich couple who was throwing a big new year party at their house. So they went shopping at the market where everything was of high cost and fixed price. They wanted to maintain their high living standard so they didn’t mind paying a lot for it. After purchasing everything they needed, they called a porter to carry everything and drop it off at their home. The porter who came was of an old age, not very healthy looking. His clothes were torn and he looked as if he wasn’t even able to meet his daily needs.

They asked the porter about the charges for delivering their goods at their home. The old porter quoted just a $20, a price well below the market rate for delivering goods at couple’s home in his cart. Yet, the couple argued and bargained with the porter and finally settled for $15. The porter was struggling to make money for every single meal so he needed anything he could earn.

The couple was very happy thinking how well they bargained with the poor porter and paid him $15 in advance and left after giving the porter their address for delivery. They reached their home and one hour passed, two hours passed, but the porter still hadn’t delivered their stuff.

The wife started to get angry at her husband, “I always tell you not to trust such person but you never listen to me. Such a person is not even able to earn to feed himself for one time in a day, and you handed him everything we purchased for our big party. I am sure instead of delivering at our home, he must have disappeared with everything. We must immediately go back to the market to inquire and then to the police station to file the complaint against him.”

They both left towards the market. On their way, near the market, they saw another porter. They stopped him to inquire about the old porter and noticed that he was carrying their stuff in his cart!

注意:

1. 所续写短文的词数应为150左右;

2. 应使用5个以上短文中标有下划线的关键词语;

3. 续写部分分为两段,每段的开头语已为你写好;

4. 续写完成后,请用下划线标出你所使用的关键词语。

Paragraph 1:

The angry wife asked him, “Where is that old thief? This is our stuff.”____________________

________________________________________________________________________________________________________________________________________________________________

Paragraph 2:

Upon hearing this, the husband had tears in his eyes and turned to his wife._______________

________________________________________________________________________________________________________________________________________________________________

【题目】How AI Protects Us

We should consider AI not as something competing with us, but as something that can strengthen our abilities. 1 And it might help keep us safe in the 21st century.

Predict infectious (传染性的) diseases

The AI in medicine is a system that combines the time and location of each new infectious disease. “These are all factors that determine how the disease will spread,” explains a researcher. 2 It will allow public health officials to take action early for locals.

Keep hunger from the door

Researchers develop an automated system aimed at fighting against diseases in crops. The Mcrops project allows local farmers to take pictures of their plants and use computers that have been trained to spot the signs of the four main diseases that are responsible for damaging crops. 3

Fight cancer

Cancer causes more than 8.8 million deaths worldwide and 14 million people are diagnosed with some form of cancer every year. 4 Now Google and IBM have been applying their AI technology to this problem.

5

The task of balancing power supplies is getting harder. The spread of smart meters — digital energy monitors that automatically record usage - is also providing more data than ever about how and when consumers use energy. The EU alone plans to have 500 million smart meters in homes by 2020.

A.Record the locations smartly.

B.Keep the balance of power supplies

C.Thus, the farmers can have a good harvest.

D.The system can also help to predict the disease.

E.This is because AI has an ability that’s far beyond humans.

F.But now people have no ideas how to deal with the terrible problem.

G.Yet catching cancers as early as possible can greatly improve a patient’s chances of survival.

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