单词拼写：用括号中所给单词的适当形式填空。
The oceans give us wonderful plants and animals ________．(enjoy)
People get ________(drink)water by ________ away the salt from sea water．(take)
Have you ever ________ a coral reef?(see)
单词拼写：写出下列形容词的比较级和最高级形式。
1．big ________ ________
2．cheap ________ ________
3．helpful ________ ________
4．far ________ ________
5．intelligent ________ ________
1．happy ________ ________
2．angry ________ ________
3．nice ________ ________
4．good ________ ________
5．hot ________ ________
用括号内所给单词的适当形式填空。
Big ________ in the sea may sink ________ boats．(wave, fish)
Heavy objects ________ onto the cars in the streets when there was a typhoon．(fall)
I can see the children ________ kites in the garden．(fly)
It's quite ________ today．(wind)
The ________ blew ________ in the wind．(leaf, slight)