我国某远洋科学考察船从青岛港起航，进行环球大洋科学考察活动．如图是科考题船航线示意图．读图回答下题．

语法填空

    What do Richard Branson, Jack Dorsey, and Michelle Obama all have in common? Besides being ____(extreme) successful, each of them is known for____(wake) up very early. The three famous persons' examples tell us how this habit can make a____(different) in life,____can help you ,too.

    Early rising is helpful in more than one way. To begin with, it helps us to have good health. The air is never____fresh as early in the morning. Early rising gives you time to take exercise. Besides, early rising helps us in our studies. In the morning we learn more quickly and find____Easy to learn something by heart. At last, early rising makes people able____(plan) the work for the day. We can't work well____a good plan. Just as a year's plan starts with spring, the plan for the day ought to____(make) in the morning. Therefore, if you want to____(success),it's a good idea to jump out of bed earlier.

“m＞3”是“曲线mx²﹣（m﹣2）y²=1为双曲线”的（  ）

    Mr Black was walking in the forest（森林） He was scared when he heard a terrible noise. But he could not get out of the forest. His friends were waiting for him in a village outside the forest. They would give him a lot of money if he took a tiger to them, or they were going to laugh at him.
    Mr Black liked hunting(打猎). He usually killed some birds and animals. But a week ago, after he drank too much, he called himself a brave hunter. So his friends bet(打赌) him twenty thousand dollars if he could kill a tiger.
    Suddenly, he heard a little noise. He ran to a big tree,and climbed up it quickly.He didn't come down until he saw it was a farmer. He went close to him and asked, “Excuse me, sir.Are there any tigers in the forest?”
    “Yes,” said the farmer. “I saw a lot of tigers' tracks（足迹）about a kilometer north near here.”
“Good!”Mr Black said in a hurry. “Which way is to the south,then?”

一个三角形的两边长分别是2和3，若它的第三边长为奇数，则这个三角形的周长为____．