内容正文:
likely to recover at a faster rate than patients who see buildings or sky instead. 4. C It gives us a great
feeling of peace.
5. D While the suns rays can age and harm our skinꎬ they also give us beneficial Vitamin D. To
make sure you get enough Vitamin D—but still protect your skin—put on sunscreen right as you head
outside. It takes sunscreen about fifteen minutes to start workingꎬ and thats plenty of time for your skin
to absorb a days worth of Vitamin D.
A. Fresh air cleans our lungs.
B. So what are you waiting for?
C. Being in nature refreshes us.
D. Another side benefit of getting fresh air is sunlight.
E. But is fresh air really as good for you as your mother always said?
F. Just as importantlyꎬ we tend to associate fresh air with health care.
G. All across the countryꎬ recovery centers have begun building Healing Gardens.
练案[20] Unit 5 Into the wild
Section Ⅳ Writing———Writing an animal fact file
Ⅰ. 阅读理解
They say there are three ways to experience
the Grand Canyon: on footꎬ on mules(骡子)or by
air. We chose the first. Up earlyꎬ my husband and
I and our three children couldnt wait to get
started. We decided to walk along a lovely path
named Bright Angel Trail.
As we set outꎬ I was shocked at how narrow
the path was. And I couldnt help noticing that the
other tourists werent like us. They had heavy
backpacksꎬ water bottlesꎬ and hats. But as usual
we were dressed. As the sun rose higherꎬ Arizonas
famous heat seemed to roast us. There was no
shade and our legs were aching. We decided to go
backꎬ with the girl on my back and the boys far
behind. By the time we finally got backꎬour legs
were like jelly.
The next dayꎬ after wed had a long rest and a
good breakfastꎬ we were ready for another view of
the Canyon—by air. After our last walkꎬ this would
be the easiest thing in the world.
We called to each other excitedly as the plane
took off and circled around the Canyon. But the
smiles on our faces disappeared as the pilot tossed