49. There (be) many things to enjoy about traveling, including the natural beauty and delicious food.
50.It is reported that thousands of running friends from.
(country) took part in 2019 Nanjing Jiangning Marathon. C)请根据对话内容，从下列方框中选择适当的单词或短语填空，使对话内容完整正确，并将答案填写在答题卡标号为51-55的相应横线上。
big cities warm in order to since how Hey, Anna.
Simon:
This is Simon, calling from the Old Town of Lijiang!
Anna: Hi, Simon! You are already in Lijiang! Great to hear you! So 51 do you like the Town there? Simon: Oh, we love it very much. You know it is so different from 52 .
Anna: Really? How long are you staying there?
Simon: Four days. 53 my dad has to go back to work next Monday. We arrived yesterday and visited the Old Town. Tomorrow we’re going to Yulong Snow Mountain. 54 save time, we’re taking the cable car up there. If we still have time, we’re planning to see Blue Moon Valley and Yak Meadow.
Anna:Sounds great! Oh, don’t forget it’s much colder on Snow Mountain. Be sure to keep 55 ! Simon: Thanks! We’re bringing sweaters and coats with us, so I hope we’ll be OK. I’ll see you in a few days! Talk to you soon. 五、阅读填空（共20小题,每小题1分，满分20分）
A)请认真阅读下列短文，并根据所读内容在文章后表格中第56-65小题的空格里填入一个最恰当的单词。
注意：每个空格只填1个单词。请将答案填写在答题卡标号为56-65的相应横线上。
Though times have changed, falling asleep in class is still a common occurrence (常事) among teenagers.
Why do students sometimes fall asleep in class? An obvious reason is lack of sleep. However, there are also causes for getting too little sleep.
Homework is a daily occurrence for most students, one that can take three to four hours per night. A teenager who wants to be able to take part in any activity besides homework must stay up late to fit everything in. Club activities, sports, computer-game playinig, and TV viewing, for example, all contribute to(促成) teens having less time For both homework and sleep. Sometimes teens lack sleep because of after-school jobs that are taken on to earn extra money for college, family expenses, or simply for clothes.
Physical problems are another factor that can cause students to fall asleep in class. For example, insomnia, which may keep a student up at night, causing exhaustion(疲惫不堪的) during class hours is a serious problem that may require medical attention. Medical evidence also supports the idea that each person has a body clock that helps to decide his or her sleep pattern. Unluckily, these body clocks do not always work according to school timetables.
The effects of falling asleep in class can be quite serious. First of all, sleeping in class is not a good way to endear(使受喜爱) yourself to teachers. In addition, it is highly possible that other students may make jokes about those who sleep in class. However, the most harmful effect of sleeping in class is missing out on important points. In the long run, sleepers may end up failing classes.