读右图，回答下列问题。
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（1）小题1:从图中的温差看，在中国的四大近海海域中，水温受大陆影响最大的是 ，
主要原因是 。
（2）小题2:2月，黄海的等温线呈舌状自南向北突出，原因可能是
A．径流的影响
B．大陆的影响
C．暖流的影响
D．寒流的影响（3）小题3:2月、8月相比，长江入海口 月的盐度低，原因是
。我国最大的盐场是 。
（4）小题4:沿海某城市将进行围海造陆，其目的是 ，在开发海洋过程中必须防止海洋 和海洋 。
小题1:渤海 渤海伸入内陆（内海），海域面积小
小题2:C
小题3:8 8月长江径流量大 长芦盐场
小题4:缓解沿海地区人地矛盾，拓展人类生存空间 环境污染 生态破坏
渤海被大陆包围，且在四大近海海域中面积最小，受陆地影响最大。日本暖流的一个分支沿黄海北上，夏季黄海水温普遍升高，暖流的影响不明显；冬季黄海水温降低，日本暖流的影响明显，导致等温线向高纬方向凸出。8月份，长江处于洪水期，人海淡水急剧增多，导致长江口外水体盐度降低。
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
Today technology has moved on ___小题3:__ . The Internet has served as a communication center. The general use of email has __小题4:__new opportunities for teachers to assist learning at a distance, which has an impact on __小题5:__ learning structures. As you can make more and more progress on your own, the role of the teacher is changing. Basic information and drill can be provided by computer; the teacher is then free to concentrate on the more important ___小题6:__: motivation and production of language in speech or writing. The latest development is a direct email link from self-study CD-ROMs to an online teacher. Now you can get __小题7:__ one-to-one tuition from any multimedia PC with an internet connection. When you need more help you __小题8:__ email the tutor. The tutor will know which course you are following and your results to date so he is able to provide good, relevant advice. All you do is to buy the CD-ROM at normal price and then get additional __小题9:__ as you feel the need. So the self-study becomes distance learning with all its advantages of flexibility and low cost. |