【题目】 How to Prepare for a Hike Hiking is a very unique way of traveling. It lets a person find unexpected sides of their own personality.1 Here are several important steps to ensure your hiking experience.

Buy the equipment

Although proper equipment can be expensive to buy all at the same time, it can serve for years. 2

They should be light so it is easier to carry them. You will also need a large backpack to store all the things you will need during a hike. As for the clothes, you should be comfortable in them as you will spend a lot of time walking.

Prepare a route

3 As for beginners, we would recommend starting with no more than a 2-dayhike. You need to determine the starting point as well as a destination. Moreover, it is better to calculate how many kilometers you will walk a day and where the stopping points will be.

Improve leg strength

Hiking usually takes a lot of walking with the weight of your backpack, and it is better to work on your leg strength before going hiking. 4 If you come unprepared, your legs will hurt and be swollen after hours of walking daily.

Go with a group of friends

An experienced hiker usually does individual adventures. However, for the first couple of times, we suggest gathering a group of friends and share this incredible experience with them. It will be a lot more fun doing it. Moreover, if a difficult situation occurs, it will be easier to deal with it with some friends. 5.

A.Be prepared mentally.

B. The route should be fairly easy.

C. However, it is not an easy task for beginners.

D. The first thing you need to consider is a tent and a sleeping bag.

E. You are supposed to practice working out with weight regularly.

F. You can also save money on the equipment as several people can sleep in one tent.

G. Spending a couple of days getting close to nature without social network can be difficult.

【题目】 Artificial intelligence (AD) technology may soon be a useful tool for doctors. It may help them better understand and treat diseases like breast cancer in ways that were never before possible.

Rishi Rawat, who teaches AI at the University of Southern California's (USC) Clinical Science Center in Los Angeles, is part of a team of scientists who are researching how AI and machine learning can more easily recognize cancerous growths in the breast.

Rawat provides information about cancer cells to a computer. He says this data helps the machine learn. “... You can put the data into them and they will learn the patterns and the pattern recognition that's important to making decisions"" David Agus, another USC researcher, believes that machines are not going to take the place of doctors, but they will help make certain decisions and look for things that the human brain can't recognize.

Once a confirmed cancerous growth is removed, doctors still have to treat the patient to reduce the risk of cancer returning. The form of treatment depends on the kind of cancer. Currently, researchers take a thin piece of tissue, put it on a small piece of glass and add color to better see the cells. The process could take days or even longer. Scientists say artificial intelligence can do something better than just count cells. Through machine learning, it can recognize complex patterns or structures, and learn how the cells are organized. They hope that machines will soon be able to make a quick identification of cancer that is free of human mistakes.

"All of a sudden, we have the computing power to really do it in real time...We couldn't have done this, but now it's all changed."" Agus adds that the process could be done for almost no cost in the developing world." He says that having a large amount of information about patients is important for a machine to effectively do its job in medicine.

The USC researchers are now only studying breast cancer. But doctors predict artificial intelligence will one day make a difference in all forms of cancer.

1What does the author intend to tell us?

A.AI technology will aid to predict some cancers.

B.Doctors will be replaced by AI machines.

C.AI technology will help cancer treatment.

D.Doctors will get improved with AI technology.

2What is vital for an AI machine to do its medical job according to USC researchers?

A.Cell counting machines.B.Well designed process.

C.Patterns of cancer.D.Enough information of patients.

3What is Paragraph 3 mainly about?

A.When is the best time to remove cancer.B.Why USC researchers argue about AI.

C.What treatment AI technology provides.D.How AI technology helps in medicine.

4What section of a magazine is the text probably taken from?

A.Entertainment & Arts.B.Science & Technology.

C.World News.D.Health Report.

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