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elements
…
falls from drops into runs into add chemicals to travels through comes to goes into rises from
你可以这样说：
First, the water falls from clouds, and drops into the rivers.
Then, it ________ a reservoir, there, people _____________
the water. After that, the water _____________ the pipes
and it finally ____________ our flat. After we use it,
the water ___________ the sea again. When it is hot,
the water becomes vapour, and _________
the sea and goes into the clouds again.
runs into adds chemicals to
travels through
comes to
goes into
rises from
(An example)
We can use water to wash our dishes.
If we have no water, the dishes will be dirty and our house will be smelly.
We can use water to…
If we have (no) water, …
We can use water to…
If we have (no) water, …
We can use water to…
If we have (no) water, …
We can use water to produce electricity
What need electricity?
If we…, we can/will…,
Without…, we can’t…,
An example