6. What do the explorations in 2017 and 2022 have in common?
A. They both made record-breaking discoveries.
B. They both used manned and unmanned vehicles.
C. They both expanded the limit of fish physiology.
D. They both found snailfish at a depth of 8,400 meters.
7. How does Prosanta Chakrabarty feel about the latest finding?
A. Concerned.
B. Confused.
C. Surprised.
D. Disappointed.
8. What does the author want to show by mentioning an e-mail in the last paragraph?
A. To emphasize the necessity of marine exploration.
B. To encourage a deeper exploration of unknown oceans.
C. To stress the role of advanced technology in the research.
D. To confirm the importance of the discovery to our planet.

Ⅱ 七选五 Travelling together offers friends the chance to enjoy quality time filled with in-jokes, funny chats and unforgettable experiences. Sound like extreme happiness? It can be. 9 Whether you're about to set out on your first adventure with mates following closely or looking to improve past experiences, here are several tips for having a pleasant trip with friends. Choose the right people to go with 10 This option should help ensure a relatively smooth journey, though there is no definite. Set expectations It's easy to make assumptions about your friends' expectation for a trip based on their usual behaviour. 11 Express your needs: a simple conversation about what each of you wants to get out of the holiday and what you don't want to do should do the trick. Discuss your budget Chat about what you intend to spend on food and activities before you go. Manage money wisely: some people are happy to divide the bill every time, while others prefer to take turns paying the bill. 12 After all, no one likes a penny-pincher（吝啬鬼）. Forgive and apologize quickly Sometimes challenging experiences mean small problems are almost unavoidable. Unsolved tension may lead to an unpleasant trip, so be honest about the way you're feeling. 13 And always apologize if you're kind of bad-tempered. So, keep communication open, be flexible, and enjoy the journey. Happy travels with your friends! A. Travel, however, can bring with it a totally different side of people. B. Trust is important when traveling with others. C. If anyone gets annoyed, forgive and forget. D. But be careful: even the best friendships can be tested on the road. E. Choose someone you can bear for a long period, ideally three days. F. It's important to take into account their personal tastes and interests. G. Write down how much you have spent if you like, but don't care about the small stuff.

Grammar and usage 基础训练
Ⅰ. 合并句子(使用定语从句关系代词将以下句子合并成一个句子)
1. The cafe was painted green. The cafe was popular among young people.
2. Yesterday I helped an old man. The old man lost his way in the downtown area.
3. The man was careless in his work. The man was fired by his company.
4. The student's calligraphy work was shown on the blackboard. I know the student.
5. Do you still remember the chicken farm? We visited the chicken farm three months ago.
6. In today's class, our teacher will ask us to talk about the things and people. We think the things and people are the most important in our life.
7. The company was founded five years ago. I worked for the company.
8. I've become good friends with several of the students in my school. I met these students in the English speech contest last year.