Lingling’s father is working in New York. Lingling and her mother will
| A．visit | B．famous | C．take | D．photos | E．emails |
We know seeds are very important for us. Some plants have more 1.____ than other plants. Little seeds will grow up to be new 2.____.
Seeds have no feet and no wings. But some seeds are good travelers. Do you know, how do seeds travel?
Yes. Seeds travel in 3.____ ways. Some seeds travel with wind，we know 4.____ travel with wind. Some seeds travel with water. For example,5. ____ travel with water. And we also know 6._____ travel with animals. But, how do 7._____travel? They travel by themselves.
Trees are very helpful for 1._____ (人)and animals. The trees can give the Oxygen(氧气) that people and animals breathe.
The trees also can clean the air and 2.____ (make) our environment(环境) more beautiful. The 3._____ of the trees can hold the ground. The leaves and trunks of the trees can stop the sandstorm. We also can use some kinds of trees to make pills. Some 4._____ that we eat are from trees, and we can use wood from trees to 5.____ 6._____, too. In 7.______, when you feel very hot, the trees will offer the shadow(阴凉), it can make you cooler. So the trees are our good friends.
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