【题目】

Can hippos swim?

Hippos like to spend most of their time in the water. But they can't swim!

They just walk in water. Hippos enjoy staying in cool water. They go up and

down in the water.

Can Koalas eat poison?

Koalas only eat a special kind of leaves. Each Koala eats about 1kg of these leaves a day. These leaves are poisonous(有毒的)But they can' t kill koalas because koalas have special bodies. They can keep koalas from the poison in the leaves.

Are clouds really light?

Most clouds might look light. But they are heavier than you think. A cloud can be about 500000 kg. That' s as heavy as 100 elephants. Clouds look big but are made up of many small water drops (水滴). Each water drop is so small that it can fly high. This is how clouds stay in the sky.

Are left-handers stmarter?

Left-handers and right-handers usually use different sides of their brains(大脑). Right- handers use the left side more often, but left-handers use both sides. We use the left side of our brain to work out problems and the right side to create. Left- handers are good at creative things such as music, art and science. But it's not all-good news for them. They often forget names and places.

Do children with older brothers spend more time learning language?

Having an older brother comes with many good points. However, a group of

scientists found that children with older brothers spend more time in language learning than those children with older sisters. Scientists think this is because older brothers talk more to their parents. Older sisters talk with their younger sisters and brothers more.

1What are these passages about?

A.Human and nature.B.Animals and weather.C.Weather and human.

2Hippos can____ in the water.

A.swimB.go up and downC.enjoy keeping warm

3According to the passages above, which question can you answer?

A.Why are the clouds heavy?

B.Why can koalas eat poisonous leaves?

C.Why does it take children with older brothers more time to learn language?

4What may left-handers not be good at?

A.Music, art and science.B.Working out problems.

C.Remembering names and places.

5In which magazine below can we read these passages?

A.World TripB.Science TodayC.Animal World

【题目】

Do you know how much water a family of four uses every day in the United States? Not 50 gallons, not 100 gallons, but 400 gallons! You could take up to 10 baths with that much water—but who would want to do that? Fortunately, there are many things we can do to save.

Shower Power!

Taking a shower uses much less water than filling up a bathtub. A shower only uses 10 to 25 gallons, while a bath takes up to 70 gallons! If you do take a bath, be sure to plug the drain right away and adjust the temperature as you fill the tub. To save even more water, keep your shower under five minutes long—try timing yourself with a clock next time you hop in!

Fix That Leak(渗漏)!

Fixing a toilet leak is a great way to reduce household water use and boost water conservation. If your toilet has a leak, you could be wasting about 200 gallons of water every day. That would be like flushing(冲)your toilet more than 50 times for no reason! Try this experiment: ask your parents to help you test for leaks by placing a drop of food coloring(色素) in the toilet tank. If the color shows up in the bowl without flushing, you have a leak!

1How much water does a family of four use every day in the United States?

________________________________________________________________________

2Taking a shower uses less water than a bath, doesn’t it?

________________________________________________________________________

3What can we do to save more water when we are taking a shower?

________________________________________________________________________

4How many times can you flush your toilet if you save the leaking water for one day?

________________________________________________________________________

5How can you tell whether a toilet is leaking?

________________________________________________________________________

6Do you have any other ways of saving water? Please introduce one of them.

________________________________________________________________________

 0  143565  143573  143579  143583  143589  143591  143595  143601  143603  143609  143615  143619  143621  143625  143631  143633  143639  143643  143645  143649  143651  143655  143657  143659  143660  143661  143663  143664  143665  143667  143669  143673  143675  143679  143681  143685  143691  143693  143699  143703  143705  143709  143715  143721  143723  143729  143733  143735  143741  143745  143751  143759  159627 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网