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1、大学英语（1）第一次网络作业(三次网络作业的平均成绩占期末考试成绩30%，请大家按提示认真复习好大学英语第一册相关课文和课后语法知识点后完成如下作业；作业一经批改评分，将不能修改；此次作业完成后应交到“在线作业”一栏本次作业界面中；作业必须按最后一页答卷表格格式作答，不要以附件形式缴交)一. 阅读：（ 1 ）The worlds population continues to grow. There now are about 4 billion of us on earth. That could reach 6 billion by the end of the century and 1
2、1 billion in a further 75 years. Experts have long been concerned about such a growth. Where will we find the food, water, jobs, houses, school and health care for all these people?A major new study shows that the situation may be changing. A large and rapid drop in the worlds birth rate has taken p
3、lace during the past 10 years. Families generally are smaller now than they were a few years ago. It is happening in both developing and industrial nations.Researchers said they found a number of reasons for this. More men and women are waiting longer to get married and are using birth control devic
4、es and methods to prevent or delay pregnancy. More women are going to school or working at jobs away from home instead of having children. And more governments, especially in developing nations, now support family planning programs to reduce population grow.China is one of the nations that have made
5、 great progress in reducing its population growth. China has already cut its rate of population growth by about half since 1970.Each Chinese family is now urged to have no more than one child. And the hope is to reach a zero population growth with the total number of births equaling the total number
6、 of deaths by the year 2000.Several nations in Europe already have fewer births than deaths. Experts said that these nations could face a serious shortage of workers in the future. And the persons who are working could face much higher taxes to help support the growing number of retired people.1. Th
7、e worlds population could reach _B_.A. 6 billion in 75 yearsB. 11 billion in 2075C. 11 billion by the end of this centuryD. 600 million in 15 years2. Which of the following is true? DA. The worlds birth rate is higher than ten years ago.B. There has been a slower population growth in the past ten ye
8、ars.C. Families are as large as before.D. Birth control has been well practiced in all nations.3. By the year 2000, the number of births and the number of deaths in China will _C_.A. be greatly differentB. drop a great dealC. be equalD. become much larger4. According to the essay, Chinas population
9、control _B_.A. is not quite successfulB. should be considered a big successC. is far from being successfulD. is a complete failure5. It may happen in the future that the people who are working in Europe will have to pay much higher taxes because_C_.A. more and more children will be born B. the numbe
10、r of retired people will become ever largerC. fewer and fewer children will be bornD. they will be making a lot of money 二语法与词汇：（请认真复习好第一册课本Unit 3课后Pick up Your Grammar中的“将来时”后再完成如下5道选择题）6. By the end of 2020 China _D_ much stronger and richer.A. will become B. would become C. is becoming D. will ha
11、ve become7. It _D_ years since I last saw you.A. was B. is C. will be D. has been8. If you _C_ quiet, Ill tell you what happened.A. be B. are to be C. are D. will be9. The room _D_ often cleaned by the worker.A. has B. will be C. was D. is10. The railway _D_ in three years.A. is complete B. will com
12、pleted C. has completed D. will be completed三. 介词填空: （按课本第1-2单元课文内容填入适当的介词）11. Successful language learners are learners _with_ a purpose.12. Successful language learners are independent learners. They do not depend _on_ the book or the teacher.13. It is just like a 24-hour library, which enables us
13、 to search _for_ the right information we need by simply typing in some key words.14. It is necessary for them to learn the language in order to communicate _with_ these people and to learn from them.15. _On_ the other hand, if your language learning has been less than successful, you might do well to try some of the techniques outlined above.（提示：答案必须填入下面的答卷表格内，只要复制粘贴提交答卷即可，请不要用附件形式提交）大学英语（1）第一次网络作业答卷纸姓名： 学号：专业： 所在教学中心：1B2D3C4B5C6D7D8C9D10D11with12on13for14with15On 5
