规定一种新的运算：a△b=ab﹣a﹣b+1，比如3△4=3×4﹣3﹣4+1，请比

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问题填空题

规定一种新的运算：a△b=ab﹣a﹣b+1，比如3△4=3×4﹣3﹣4+1，请比较大小：（﹣3）△4 _________ 4△（﹣3）（填“＞”、“=”或“＜”）．

答案

填空题

单词拼写。

根据句意及所给首字母或汉语提示，写单词完成句子。

1. The speech contest will be held next Friday. I must make full p 1 for it.

2. Keeping calm is the most important thing you should remember in time of e 2 .

3. I will be f 3 to look out of the window from a high building and it is said to be a disease named

acrophobia (恐高症).

4. They are having a heated a 4 over whether smoking is bad for the health.

5. Tom d 5 the gold medal in the speech competition as he had made so many efforts that hardly could

anybody imagine.

6. He wastes so much of his valuable time _ 6 (聊天) on the Internet.

7. Tom is so anxious that he can't 7 (专注)on his teacher's lessons.

8. Our school bought a lot of new teaching 8 (设备) this term.

9. The scientist was highly praised for his great 9 (成就).

10. I sat down 10 (安静地) and thought about it over and over again.

综合

读材料回答问题：（12分）

材料一：河流为区域的发展提供灌溉水源，有利于农业的发展；提供便利的水路交通，有利于对外联系；河流形成的冲积平原能够提供大量的农业用地和城市建设用地；河流能为城市工业生产和居民生活提供充足的水源……

材料二：长江三角洲示意图（下图）

材料三：如今，长江三角洲真正形成了一小时高铁圈，三城市真正实现了“同城效应”。

（1）、长江三角洲地区包括市，省南部和省北部地区。这里地形以为主，河网密布，湖泊星罗，自古以来就是我国著名的“ ”。

（2）、长江三角洲地处江海交汇之地，列举长江对本区经济发展的影响。（至少三条）

（3）、材料二中，图中城市A. 是，B.是，C. 是。

（4）、实现“同城效应”这种生活方式的条件是。

（5）、长江三角洲地区列入世界遗产的有、等。