Unit 4 Astronomy the science of the stars.docVIP

Unit 4　Astronomy: the science of the stars Period One　Warming Up Reading 　　　　　　　　　　　　　　　　　　 Ⅰ.单词拼写 1．Too much sugar can be harmful to childrens health. 2．Six multiplied (乘) by five is thirty. 3．A truck went out of control and crashed(撞到)into the back of a bus. 4．What he said puzzled (困惑)most of us. 5．The professor has brought in a good system(系统)of teaching language from abroad. 6．Unlike (不像)most people in the office who come to work by car, I usually come to work by bus. 7．My new teacher is a very gentle(文雅的) person and is kind to us. 8．There is an atmosphere(气氛)of peace and calm in the country. 9．The robbers hit the door of the bank violently(暴力的)． 10．Do you believe in the existence (存在)of ghosts? Ⅱ.短文填词 The earth was just a cloud of 1.dust after the “Big Bang”．The earth 2.exploded loudly with fire and rock.They were 3.in_time to produce many things, which were to make the earths 4.atmosphere. As the earth cooled down，water began to appear on its surface.It allowed the earth to dissolve 5.harmful gases.Then life began to develop. The first small plants 6.multiplied and filled the oceans and seas with oxygen.This encouraged the 7.development of early shellfish and fish.Land animals such as insects，reptiles and dinosaurs and so on appeared after green plants appeared.Small clever animals 8.spread all over the earth.They are putting too much carbon dioxide into the atmosphere, which 9.prevents heat from the earth into space.Whether life will continue on the earth for millions of years to come will 10.depend on whether this problem can be solved. Ⅲ.完成句子 1．Fruit juice can be_harmful_to childrens teeth. 果汁可能损坏儿童的牙齿。 2．The heavy rain made it_impossible for us to_go_out. 大雨使得我们无法出去。 3．Whether_a_nurse_can_take_good_care_of_the_patients depends on whether_she_likes_the_job． 一个护士能否照顾好病人取决于她是否喜欢这个工作。 4．What_puzzles_me is why he left the country without telling anyone. 令我不解的是，他为什么悄悄地离开了这个国家。 5．I should be back in_time_to_watch_the_show. 我应该及时赶回来看那场演出。 6．They cant exist_