1． You have been told to wash your hands many times a day to help stop the spread of the new coronavirus(冠状病毒). But what about the mobile phone that you're always using? Scientific studies have shown that the virus can live for two to three days on smooth materials like plastic and stainless steel.
Experts suggest cleaning all " high touch"surfaces every day, including phones, keyboards and computers. However, few people know how to do the cleaning.
Here are some things not to do when cleaning the phone.
◆Do not spray ( 喷) cleaners directly on the phone.
◆Do not put the phone into any cleaning liquids (液体).
◆Do not use tools that use forced air, which are often used to clean computer keyboards.
◆Do not clean the phone with hard materials. They could make small cuts on it.
So, what is the right way? Below are some suggested ways to clean the phone. With any of these suggestions, be sure not to get the phone wet.
◆Start by turning off the phone. Make sure the phone is not connected to the electricity.
◆Use cleaning cloths with 70 percent of alcohol (酒精) instead of the common ones.
◆Use paper cloths, or other soft cloths like those you use to clean the eyeglasses. It's OK to cover the cloths lightly in cleaners. But do remember to clean the phone "gently".
Cleaning the phone is one of the measures that are helpful to keep away from the new coronavirus. You should clean your own phone often and tell others the correct ways to do it.

2． One day, Anna Du was walking along Castle Island's beach. She found there were lots of plastic pieces in the sea and some were too small to pick up. She began to think about how to solve the problem.
First, she did a survey. The result showed there were already 150 million tons of plastic in the sea, and every year there would be another 8 million tons. She realized something must be done. So she decided to invent a robot that could work under water. She tried again and again. At last her ROV came out. It could move through water and pick up plastic pieces, especially the tiny ones.
With this ROV, Anna Du took part in the Broadcom Masters competition, which is one of the top STEM competitions. It's for young students around the world. This year, more than 5, 000 students were interested in the competition, but only a few got the chance, Anna Du'g ROV caught a lot of attention. It had cameras with three different kinds of lights which could find plastic pieces easily. Dana Yoerger, an expert: said, "The ROV is nicely done for a 12－year－old girl. It's very clever.
In fact, Anna Du is always learning to solve the world problems and her parents are always supporting her, At the age of five, she began to go to workshops to learn engineering skills, When she was asked about the future plan, she said, "I want to be an engineer because I like building things. I think many world problems can be solved with new inventions. Right now, I'm just caring about plastic problems because there's still a long way to go. "

3． In summer, the high heat always makes you feel uncomfortable.        Actually, to stay cool and comfortable, you can try lots of natural ways, including water, fans, cool drinks, and more. Here let's see how to use water to cool down.
Drink water more often. Your body will feel cooler if you do that. Try drinking at least eight bottles of water every day. Adding orange, lemon, or tomato pieces to your water makes it more refreshing.
      
Freeze a handkerchief(手帕) and put it on your neck, forehead, arms, or legs.        When the handkerchief heats up, simply wet it and put it back in the fridge. You can also put an icepack behind your head.
Run cold water over your wrists(手腕). Wet your wrists and other parts, such as your neck and your inner elbows, with cool water for 10 seconds each. This will lower your temperature for a little bit.        This can be especially helpful for cooling down right before you go to bed:
Fill your bathtub(浴缸) with cool water and get in. Once you are used to the temperature: let some water out and refill it with cool water: Keep doing this until you feel cool enough       
With the right ways; you can avoid the heat while saving money by tuning off the air conditioning (空调).

4． Today in a big day for me, The last time I spoke in class was three years ago and it was (1)       , I tried to say /w/, but made a strange sound, Everyone laughed, I haven't spoken in class since then.
(2)       , thing a have been changing a lot. Now when I listen to music through my headphones, I can follow without stuttering (结巴)! That's why I (3)        to talk at the science festival today.
I arrived at school early, Ryan Colby, who enjoyed (4)        at me; was standing by the entrance, He said, "Hey, Tom, guess what?" I tried to say, "What?" but got stuck on the /w/, He started laughing. I turned and ran.
I wasn't going to show up at the festival, but on my phone I got (5)        from Dad. saying "good look"; And I thought OK, I wouldn't let people like Ryan Colby make me feel bad any more.
When it was my (6)        to speak, I just saw Ryan Colby, And then I was so (7)        that I chose the wrong music. So, instead of Mozart, I was listening to dance music, I couldn't (8)        myself talking in the same rhythm (节奏) as the music, It sounded like I was rapping (说唱). Most people in school never heard me speak, They were really surprised. When I finished, they all stood u and cheered.
After the festival, (9)        wanted to be my friend. They thought I was n talented and skillful rapper! I (10)        my phone at lunch time and found 187 new friend requests! And one of them was from Ryan Colby.

5． It's not usual that you can feel the warmth in an icy train station. After all, it's the place where people walk
             (quick) from one end to the other for their trains with impatience. However, just there,              a cold Friday morning, I saw something that moved me to tears.
While I              (walk) to the hall of the station, I saw a young woman put something next to              sleeping homeless man. She put it down silently and left in a hurry. I wondered              she had put some money there. Instead, it was a sandwich              (lie) on the man's bag. I suddenly realized that a sandwich was probably what the man needed most.
I couldn't help thinking of many times when I              (help) by others. I also thought about all the other little acts of              (kind) that happened every day and went unnoticed. Even the smallest thing can make a big              (different). And what a gift it is when you get to see the              (move) moments !

11．你了解京剧越多, 就会越喜欢它.
The              you know about Beijing Opera, the              you'll like it.

14．很多青少年仰慕钟南山并且希望成为像他样的人。
Many teenagers                           to Zhong Nanshan and want to become like him．

16． Many students want to improve their memories and learn better. Today we will introduce some no－cost things you can do.
Exercise
Before you study, doing exercise may help you better remember what you will learn. Recently , researchers have found that people who did 15 minutes of training remembered more words. Scientists say the best time to exercise is right before you study. It can make you more active.
Pre-study test
The students who take a test before studying remember more information than those who don't . For example, if you are using an English textbook, you might first look at some important words at the end of the unit. You could ask yourself what they mean or how they are used. While you might not know the answer, you will probably have a goal to learn so that you can remember the answer when studying!
Sleep
A study shows that sleep helps you to learn in two ways. An expert explains that"a person with enough sleep can concentrate best". He also says, "sleep itself plays an important role in making the memory stronger, which is necessary for learning new information.
Wakeful rest
When you finish studying, you often go straight to another activity. Perhaps you play a video game or watch TV. But researchers suggest that resting after you study may help you remember what you've studied. In a study, even older adults who rested for 10 minutes after learning new words remember more words and better.

Why can exercise before studying make you remember well?
                                                                                
Translate the underlined sentence into Chinese.
                                                                                
In which two ways can sleep help you learn well?
                                                                                
What helped the older adults remember new words more and better?
                                                                                
What is the writer's purpose in writing this article?
                                                                                

17．假设你是李华, 你校将要举办"劳动实践周"活动. 请根据以下提示, 给你的英国朋友Scott写一封信, 邀请他参加. 内容包括:
(1)活动时间. . .
(2)活动内容:校园环境美化、实践基地劳动主题演讲. . .
(3)活动意义. . .
要求: (1)词数100词左右(开头和结尾已给出, 不计入总词数);
(2)包括所有要点提示, 并适当补充, 语句通顺, 意思连贯;
(3)信中不得出现个人真实姓名和校名.
参考词汇: Labour Practice Week劳动实践周 practice base实践基地
Dear Scott,
                                                                                
Yours,
Li Hua