However，There 3 (be)one thing different about this captain．Every morning he went through a strange ceremony．He would lock 4 in his captain’s quarters and open a small safe．In the safe was 5 envelope with a piece of paper inside．He would stare at the paper for a minute，and then lock it back up．Afterwards，he 6 go about his daily duties．For years this went on，and his crew became very curious．
Was it a treasure map?Was it a letter from a long 7 (lose)love? Everyone guessed about the contents of the strange envelope．
8 was not until the captain died at sea that the secret was discovered．After laying the captain’s body to rest，the first mate(助手)led the entire crew into the captain’s quarters．
He opened the safe， 9 (get) the envelope，opened it and...
The first mate turned pale because he found the captain could not tell the difference between two important words．He showed the paper 10 the others．Four words were on the paper；two lines with two words each：
3、 there be结构，意为“有”。
8、 考查强调结构：it is+被强调部分+that。句意：直到船长在海上去世这个秘密才
10、 表示“把某物给某人看”用show sth.to sb．。