What will man be like in the future — in 5,000 or even 50,000 years from now? We can only make _____, of course, but we can be sure that he will be different from what he is today, for man is slowly _____ all the time.

Let us take an obvious _____. Man, even five hundred years ago, was shorter than he is today. Now, on average, man is about three inches taller. Five hundred years is a relatively short period of time, so we may _____ that man will continue to grow taller. Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain’s capacity (能力). As time goes on, _____, we shall have to use our brains more and more, and _____ we shall need larger ones! This is likely to _____ a physical change to the head, and in particular the forehead, which will grow larger.

Nowadays our eyes are in _____ use. In fact, we use them so much that very often they become _____ and we have to wear a pair of glasses. But over a very long period of time it is likely that man’s eyes will grow stronger.

On the other hand, we have a (n) ______ to make less use of our arms and legs. They, ______, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive ______ they are used a great deal in modern life.

Another we are ______ about is our hair. This will ______ from the body altogether in the course of time because it does not ______ a useful purpose any longer. In the future, then, both sexes are likely to be bald (秃顶的).

Perhaps all this gives the ______ that future man will not be a very ______ creature to look at! This may well he true. All the same, ______ all these changes, future man will still have a lot in ______ with us. He will still be a human being, with thoughts and ______ similar to our own.

The Centers for Disease Control and Prevention says that over 50,000 people every year sustain some sort of winter-related back injury，and 5，800 of those are holiday decorating- ____. These aches and pains can   ____ bring trouble to people’s life. It is said that people’s back could sustain all sorts of strain from carrying heavy   ____，and from the increased stress of lugging suitcases, decorations and gifts. Dr. Alanna Levine spoke to Debbye Turner Bell on “The Early Show” about how to   ____ the back for the holiday season.

The first   ____ Dr. Levine gave was about carrying heavy shopping bags. Smaller bags, she said, are better. “You don’t want to load everything up into one bag and lug it around,” Dr. Levine explained. “You want to   ____ the weight on your body. ” She also   ____ putting heavier items towards the bottom in those bags and lighter items on top. Also, if you can, make frequent trips to the car to drop     ____ purchases.

____ can be another pain in the back—from carrying heavy luggage. Again, Dr. Levine ____ not to pack everything into one bag. Even though it may cost more, she said that packing two smaller bags is safer than packing a heavy one. Also, choose a lightweight bag, so that the only weight you’re carrying is the   ____ inside the suitcase.

When unloading bags from an airport baggage claim, Dr. Levine suggested standing   ____ to the carousel (圆盘传送带) and bending your knees to lift it up. “You want to avoid that reach-and-lift. It puts a(n)   ____ on your lower back,” she said.

When it   ____ holiday decorating, people take more   ____. Dr. Levine suggested decorating in pairs, so that one person can hand the lights and ornaments to the other person to hang, thus avoiding reaching or twisting to get what you need.

My friend Michelle is blind, but you'd never know it. She makes such good use of her other 4_______,including her “sixth sense”, that she rarely gives the impression she's _______ anything.

Michelle looks after her children pretty much like the rest of us, _______ that she doesn't push too hard on them,_______really benefit a lot from her relaxed attitude.She knows when to clean the house; she moves around so fast that often _______ don't realize she's blind.

I _______this the first time after my six­year­old daughter, Kayla, went to play there.When Kayla came home, she was very _______ about her day.She told me they had baked cookies, played games and done art projects.But she was _______ excited about her finger­painting project.

“Mom, guess what？”said Kayla, all smiles “I learned how to _______ colors today! Blue and red make purple,and yellow and blue make green! And Michelle ________ with us.”

To my great ________,my child had learnt about color from a blind friend!

Then Kayla continued, “Michelle told me my ________ showed joy, pride and a sense of accomplishment. She really ________ what I was doing！”Kayla said she had never felt how good finger paints felt ________ Michelle showed her how to paint without looking at her paper.

I realized Kayla didn't know that Michelle was blind.It had just never ________ in conversation.

When I told her, she was ________ for a moment. At first, she didn't believe me. “But Mommy, Michelle knew exactly what was in my picture！”Kayla ________ . And I knew my child was ________ because Michelle had listened to Kayla describe her artwork.Michelle had also heard Kayla's ________ in her work.

We were silent for a minute. Then Kayla said slowly, “You know, Mommy, Michelle really did see my picture. She just used my __________”

Indeed, she uses a special type of “vision” that all mothers have.