unit 4 第一课时
ⅰ.单词拼写
1．this ________ (理论) is helpful to explain how the universe began.
2．the big project has cost almost as much as one ________ (十亿) dollars.
3．two people have been killed in the ________ (暴力的) incident on march 2nd.
4．across the ________ (地球), sea level varies by hundreds of feet.
5．people suffering hunger still ________ (存在) in many parts of the world today.
6．smoking is ________ (有害的) to health, but there are still many people picking it up.
7．some people are still ________ (迷惑的) about how the computer works.
8．________ (不像) what you supposed, only few people attended his birthday party.
9．the new owners have tried to give the restaurant a more family-friendly ________ (气氛)．
10．the little boy is interested in ________ (天文学)．
答案：1.theory 2.billion 3.violent 4.globe 5.exist 6.harmful 7.puzzled 8.unlike 9.atmosphere 10.astronomy
ⅱ.完成句子
1．the scientist's experiments ______________ (产生) a new drug.
2．if you give up this chance, you'll regret it ____________ (迟早)．
3．after a long time wait, ______________ (轮到她) to learn how to drive.
4．______________ (下蛋) is the ant queen's full-time job.
5．their son ______________(被阻止上大学) because of their low income.
6．these families mainly ________ (生存) their poor wages.
7．the girl listened with ______________ (迷惑的表情) on her face.
8．sometimes, doing exercise violently ______________ (对健康有害)．
9．______________ (不是这个淘气孩子的特点) to stay calm for such a long time.
10．as he was angry, he shut the door ________________ (猛地)．
答案：1.gave birth to 2.in time 3.it is her turn 4.laying eggs 5.was prevented from going to college 6.exist on 7．a puzzled expression 8.is harmful to/does harm to health 9．it is unlike the naughty boy 10.violently/with violence
ⅲ.语法填空
1．the new rules make ________possible for people here to have a peaceful environment.
