期末专练—语法填空 2020-2021学年人教版九年级英语（上册）（精编版 带答案）

2020-2021学年人教版八年级英语（上册）期末专练—语法填空 Name___________ Grade___________ 第一节 语法填空。 阅读下面材料,在空白处填入1个恰当的词或括号内单词的正确形式,并将答案写在相应位置。 A Human, don’t come too close! When we see babies or pets, we can’t help touching them to show our love. And they give us happy feelings back. But 1.__________(recent), a study shows that it’s different for plants. The study in the newspaper China Daily shows that plants don’t “like” to be touched. That’s because touching changes their genes (基因) and, even 2.____________(bad), can slow their growth. Professor Jim Whelan from a university in Australia gave 3.___________explanation. “The lightest touch from a human, animal, insect, or even plants touching each other in the wind, 4._________(lead) to a huge gene change in the plant,” Science Daily reported. Scientists did an experiment on plants, 5.__________(try) to test this idea. They grew a number of plants to the age of four weeks. Then they touched them with a paintbrush every 12 hours over a 36-hour peri