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请用适当情态动词填空,每空一词。

1. In those days on winter evenings, we ___________ all sit around the fire, chatting.

2. Your sister has been admitted to Beijing University? She __________ be quite clever!

3.You haven’t finished your paper? But you ___________ have finished it by the end of last week!

4.I promise if you win the football game, all of you ___________ have a chance to travel in Paris for free.

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A study found that young people have a stronger and more unpleasant scent (气味) than the elderly,while elderly people’s smell was the most distinctive,less intense and unpleasant. Researchers said the change in our smell is driven by the chemicals we release through our glands (腺) and the bacteria on our skin.

To test whether or not it really exists,scientists collected a series of samples from three groups of 12 to 16 donors,aged 20 to 30,45 to 55 and 75 to 95.Volunteers wore special T-shirts fitted with underarm pads (护垫) as they slept for five nights,after which the pads were cut up and put in glass jars. A separate group of 41 people aged 20 to 30 was then asked to smell two jars at a time and asked which group of the donors was older,as well as rating how strong and unpleasant each smell was.

When asked to specify whether a particular sample was from a young,middle aged or old person,they were much more successful at identifying older people. Despite being the most distinctive,the older people’s smell was also rated as being obviously less intense and less unpleasant than those from the other groups.

Researchers said their findings appeared to contradict people's negative ideas about the old person’s smell but admitted other factors,like smelly breath or skin,could be to blame for its bad reputation.

“Similar to other animals,humans can give off body scents that allow us to identify biological age,avoid sick individuals and pick a suitable partner. Elderly people have a distinctive scent that younger people consider to be not very unpleasant. This was surprising given the popular conception of old age scent as smelly. However,it's possible that other sources of body scents,such as skin or breath,may have different qualities,” said Dr Johan Lundstrom,who led the study.

1.What do we know from the study?

A.People of different ages give off different scents.

B.People's scent can only be changed by the bacteria on their skin.

C.People show great interest in old people's scent.

D.People's scent can help distinguish a man and a woman.

2.Which of the following ages of people have the chance to participate in the study?

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3.According to the passage, people usually think that________.

A.old people's scent is simply from their breath

B.old people have a bad reputation mainly for their skin

C.old people's scent is terrible and unpleasant

D.old people give off a more pleasant scent

4.What is the author’s purpose in writing this passage?

A.To tell old people how to remove their terrible scent.

B.To prove that people often hold wrong ideas.

C.To show how researchers carried out their study about the scent.

D.To report the findings of a study about people's scent.

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Here is some information from a tourist guide to Patapsco Valley state Park Maryland, USA.

Wildlife and Nature Appreciation

While visiting Patapsco Valley State Park, you will see a variety of natural habitats. Throughout spring and fall, dogwoods, maples, redbuds, and many varieties of wildflowers color the forest. This park is also home to many small mammals and birds. If you pause during your journey through the forest, you are likely to see rabbits, grey squirrels, and red foxes. Along the banks of the river, birdwatchers will spot Canada geese and wood ducks all year round

Fishing

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Trails

Adventure seekers will enjoy hiking, mountain biking and horseback riding on the park's popular trail system. More than 17 miles of challenging and rough single track trails follow the ridges, steep hillsides and stream valleys in the park. These trails are also excellent gateways for wildlife viewing, birdwatching and general nature appreciation. Please respect the rights of nearby private property owners by using only blazed (有路标的) trails. Remember that the park is a natural area with certain dangers, such as poison ivy, slippery trail surfaces, insects, etc.  You are responsible for having the necessary skills, knowledge and equipment for a safe visit.

Discover History along the Trail

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Picking up objects plays an important role in people’s life. El-E is a robot that is designed to get everyday objects for people with disabilities.

About 1.5 meters tall, with a single robotic arm that can pick up objects at different heights, El-E is equipped to discover what its owner wants and then go and fetch it. The user can point a location to the robot using a “point-and-click” way of interaction, which provides a direct way to tell the robot which object to handle or where to go. The robot can adapt the position of its arm in order to grasp the object.

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At some point in your life, you will need to ask someone for a favor(帮助), whether it’s at your workplace, at home or in a social setting. If you need a guy to help you with something, there are ways to approach him that will help you ask for that favor.

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On February 5, 2013, the fifth grade students at an elementary school welcomed a new student. Unlike other newcomers. He was not shy at all. Instead, he seemed1.(recognize) all one hundred kids by their names immediately . You may wonder who can do that. Well, the new student was not a human2.a robot. The 1.2 meter tall student is part of a14-month experiment. The experiment is to test3.if robots can gradually learn to naturally deal with a group of people.

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假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。作文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏子符号(∧)并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

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Facebook managed to put its vast treasure trove(宝藏) of user data to good use before Friday’s tragic terror attacks in Paris. The social network customized its safety check feature let users know whether their friends and loved ones in Paris are safe.

Users in the area are being alerted(通知) by Facebook’s mobile apps, asked them whether they are safe, and offering to check on any of their friends. The app has also been sending out alerts to anyone who has friends in Paris, and Facebook’s website lets anyone check on the status and whereabouts(去向) of their friends as well as.

Most people have seen Facebook’s safety check for the first time today, and the company actually lanched it in respond to the Nepal earthquake earlier this year. At the time, Facebook CEO Mark Zuckerberg wrote: “When disasters happen, people need to know their loved ones are safe. It’s moments like this when being able to connect really matters.”

Facebook wasn’t the only tech company to direct reach out to its users in Paris after the terror attacks. AirBnB(空中食宿) sent its customers in Paris a email advising them staying in place and follow the directions from local authorities, and Uber(优步) used its app to advise users “not to move if absolutely necessary.”

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增加:在缺词处加上一个漏字符号(∧),并在其下面写出该加的词。

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Today, my foreign teacher Tim and I went to the People’s park together. We take a taxi and it wasn’t long before we arrived at the park. On seeing the green trees and beautiful flower, Tim couldn’t wait for to take pictures. It was at that moment when we found his camera was missing. He was very worried but searched all over his backpack. Sadly, he just couldn’t find it. Suddenly it struck me that he might have left it in the taxi. So I immediately got touch with the taxi company. About half an hour later, the driver returned a camera. Both of us were gratefully to the driver, and Tim, in particular, insisted on have a photo taken with him. Tim and I enjoyed themselves during the rest of the day

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