兩句都不正確，正確的是：
Mr.Johnson's story was laughed at by everyone who heard it.
不僅要在 laughed 后加 at，而且還要將 every 改為 everyone。

你說的這類結構為 of 引出的介詞短語，在句中主要用作表語或定語。如：
The story is of no interest. 這個故事沒有趣味。
It appears of no value. 它似乎沒有價值。
The matter is of considerable importance. 這個問題相當重要。
Your help is of great value to us. 你們的幫助對我們很有價值。
這類結構在許多情況下可換成相應的形容詞。如：
This is of no use to you.=This is not useful to you. 這對你沒用。

可以的，如《薄冰高級英語語法》第633頁就有這樣一句：

Present at the meeting were Professor Smith, Professor Brown, Sir Hugh and many other celebrities. 到會的有史密斯教授、布朗教授、休爵士以及許多其他知名人士。

另外，另外一般語法書提到的，當so…that…句式中的“so+形容詞”置于句首時，主句要用倒裝語序，就是典型的“形容詞”置于句首，只不過其前多了修飾語so。如：

So sudden was the attack that we had no time to escape. 襲擊來得非常突然，我們來不及逃跑。

So sudden was the attack (that) we had no time to escape. 襲擊來得非常突然，我們來不及逃跑。

So ridiculous did she look that everybody burst out laughing. 她的模樣如此滑稽，大家都捧腹大笑。

So terrible was the storm that whole roofs were ripped off. 暴風真可怕，把整個的屋頂全都刮飛了。

So successful have they been that they are moving to Bond Street. 他們是那樣成功，他們將搬到龐德街去。

So bright was the moon that the flowers were bright as by day. 月亮是那樣亮，花都像白天時那樣鮮艷。

我們的“英語詞匯網”有個“詞匯辨析”欄目，內容很豐富，應該有您所需要的：http://www.yywords.com/Article/discrimination/Index.html

本站曾發表過一篇關于它們區別的文章，可供參考。請查詢：www.hz123456.com/Article/200802/155.html

兩者的區別是：第一句是錯誤的，第二句是正確的。即

誤：There is going to have a sports meeting in our school next week.

正：There is going to be a sports meeting in our school next week.

分析：there be 的將來時態有兩種常用形式：

There is going to be….

There will be…

請查看本站以下文章：
www.hz123456.com/Article/200811/748.html
www.hz123456.com/Article/200811/733.html
www.hz123456.com/Article/200811/732.html
www.hz123456.com/Article/200811/731.html

請查看本站以下文章：
www.hz123456.com/Article/200811/748.html
www.hz123456.com/Article/200811/733.html
www.hz123456.com/Article/200811/732.html
www.hz123456.com/Article/200811/731.html

答案應選C。因為要表示禁止或阻止某人做某事，英語通常用prohibit sb from doing sth或prohibit sb’s doing sth。如：

His poor eyesight prohibited him from becoming a pilot.

=His poor eyesight prohibited his becoming a pilot.

他因視力不好而不能當飛行員。
上面這個句子若改為被動式則為：