[解析]
My swimming experience is extreme interesting. There was a time when I swim like a rock.This went on till one day when I was fishing with a friend of mine at∧ nearby pond. I was so much careless that I slipped into one. Had my friend not come to my rescue, I would have be drowned. Ever since then, I have come to know the importance of learn to swim. I didn't go to any training class but learned it all by me. Now I have no difficult swimming at all. Though the way I swim looks clumsy ,at least it can keep me floating. Thinking of this, I feel quite satisfying
详解:
1.extreme改为extremely;考查副词,此处用副词作状语修饰形容词interesting.
2.swim改为swam;考查动词的时态,这句讲的是过去的事情,要用一般过去时.
3.加a;考查冠词,这里用不定冠词a表示泛指,意为"我和朋友在一个池塘边钓鱼".
4.去掉much;考查词义辨析,so后跟形容词、副词,so much后跟不可数名词.
5. one改为it,考查人称代词,指代前面提到的pond,所以用it.
6. be改为been,考查虚拟语气,表示与过去事实相反,主句用would+have done,此处表示"被淹死",所以用被动.
7.learn改为learning,考查动名词,介词后跟动名词.
8.me改为myself,考查固定搭配,all by oneself独自.
9. difficult改为difficulty;考查名词,这里用名词形式作动词have的宾语.
10.satisfying改为satisfied;考查分词作形容词,现在分词作形容词修饰物,过去分词作形容词修饰人,句子的主语为I,故用过去分词作形容词.