Reading comprehension
(A)Pacific ScienceCenter Guide
◆Visit Pacific Science Center’s Store
Don’t forget to stop by Pacific ScienceCenter’s Store while you are here to pick up a wonderful science activity or souvenir to remember your visit. The store is located(位于) upstairs in Building 3 right next to the Laser Dome.
◆Hungry?
Our exhibits will feed your mind, but what about your body? Our café offers a complete menu of lunch and snack options, in addition to seasonal specials. The café is located upstairs in Building 1 and is open daily until one hour Pacific ScienceCenter closes.
◆Rental Information
Lockers are available to store any belongings during your visit. The lockers are located in B
uilding 1 near the Information Desk and in Building 3. Pushchairs and wheelchairs are available to rent at the Information Desk and Denny Way entrance. ID required.
◆Support Pacific Science Center
Since 1962 Pacific Science Center has been inspiring a passion(热情) for discovery and lifelong learning in science, math and technology. Today, Pacific ScienceCenter serves more than 1.3 million people a year and brings inquiry-based science education to classrooms and community events all over Washington State. It’s an amazing accomplishment and one we cannot achieve without generous support from individuals, corporations, and other social organizations. Visit Pacific ScienceCenter. org to find various ways you can support Pacific ScienceCenter.
21. Where can you buy a souvenir at Pacific Science Center?
A. In Building 1. B. In Building 3. C. At the Laser Dome. D. At the Denny Way entrance.
22. What does Pacific ScienceCenter do for schools?
A. Train science teachers. B. Distribute science books.
C. Inspire scientific research. D. Take science to the classroom.
23. What is the purpose of the last part of the text?
A. To encourage donations. B. To advertise coming events.
C. To introduce special exhibits. D. To tell about the Center’s history.
(B)
A buld-it-yourself solar still（蒸馏器） is one of the best ways to obtain drinking water in areas where the liquid is not readily available. Developed by two doctors in the U.S. Department of Agriculture, it’s an excellent water collector. Unfortunately, you must carry the necessary equipment with you, since it’s all but impossible to find natural substitutes. The only components required, though, are a 5’ 5’ sheet of clear or slightly milky plastic, s
ix feet of plastic tube, and a container— perhaps just a drinking cup — to catch the water. These pieces can be folded into a neat little pack and fastened on your belt.
To construct a working still, use a sharp stick or rock to dig a hole four feet across and three feet deep. Try to make the hole in a damp area to increase the water catcher’s productivity. Place your cup in the deepest part of the hole. Then lay the tube in place so that one end rests all the way in the cup and the rest of the line runs up — and out — the side of the hole.
Next, cover the hole with the plastic sheet, securing the edges of the plastic with dirt and weighting the sheet’s center down with a rock. The plastic should now form a cone(圆锥体) with 45-degree-angled sides. The low point of the sheet must be centered directly over, and no more than three inches above, the cup.
The solar still works by creating a greenhouse under the plastic. Ground water evaporates (蒸发) and collects on the sheet until small drops of water form, run down the material and fall off into the cup. When the container is full, you can suck the refreshment
out through the tube, and won’t have to break down the still every time you need a drink.
32.What do we know about the solar still equipment from the first paragraph?
A.It’s delicate. B.It’s expensive. C.It’s complex. D.It’s portable
33.What does the underlined phrase “the water catcher” in paragraph 2 refer to?
A.The tube B.The still C.The hole D.The cup
34.What’s the last step of constructing a working solar still?
A.Dig a hole of a certain size B.Put the cup in place
C.Weight the sheet’s center down D.Cover the hole with the plastic sheet
35.When a solar still works, drops of water come into the cup form .
A.the plastic tube B.outside the hole C.the open air D.beneath the sheet
Verb Filling
1. —Did you catch what I said?
