Memory loss has to be one of our biggest     1     (fear). Names, words, facts and faces — nothing is spared.       2     (lucky), research has shown that it is possible to train the brain to protect our memories.

    3     (challenge) your brain could be one way of preserving your memories — through the value of commercial brain training app is debatable; some experiments seems to show that while people may become a master of the games on     4     (they) screen, the improvements fail to transfer to daily life. But other, more traditional activities — like learning a musical instrument or a second language — do seem to have some     5     (protect) benefits, at least on short-term memory. Ideally, it is probably best     6     (keep) your brain active throughout your life, well before you begin to approach old age.

Exercise and a healthy diet are also thought to offer some protection against memory loss. So can     7     active social life — since regular contact with other people is also thought to excite our brains. Ensuring that you regularly get a good might’s sleep     8     (help) too.

Of course, nothing can guarantee health and vitality in old age     9     these few simple measures might give you the best possible chances     10     protecting your mind as you age.

It is necessary and important for us students     1     (balance) study and relaxation . You see, National Day     2     (come), and I’ll make good use of the time to relax. Also, I come to realize that if I can rest well, I will be able to study     3     (effective) when I come back to school.

High school students are under increasing pressure to study     1     (long) hours than even before. They spend over 8 hours a day     2     (study) at school, some of whom even have to attend extra     3     (class) in their spare time. This greatly affect their health, which make their parents and teachers concerned.

The Chongyang Festival     1     falls on the ninth day of the ninth month of the Chinese lunar calendar is also known as the Double Ninth Festival.

The festival is based on the theory of Yin and Yang, the two opposing (全然不同的) principles in nature. Yin is feminine (女性的), negative principle, while Yang is masculine (男性的) and positive. The ancients believed that all     2     (nature) phenomena could be explained by this theory. The ninth day of the ninth lunar month is a day     3     the two Yang numbers meet. So it     4     (call) Chongyang. Chong means double in Chinese. It is hard     5     (say) when these customs were created. Chongyang    6     (be) an important festival since ancient times.

The Double Ninth Festival is usually perfect for outdoor     7     (activity). Many people go hiking and climbing in the country, enjoying Mother Nature’s final burst of color before she puts on her dull winter cloak. Some will carry a spray of dogwood (茱萸). But,    8     (slow), the custom of carrying a spray of dogwood during the Double Ninth Festival is     9     (die) out and many people, especially young people in the cities. The custom evolves into     10     (it) present form, when people go climbing to get some exercise as well as enjoy the autumn scenery.