Scientists usually have to do thousands of     1    (experiment)in order to prove something new or true. They often fail,     2     they never give up.

My neighbour     3    (be)a scientist. He studies chemistry. He is always working alone in     4    (he)lab, trying to figure out all the mysteries that make him     5    (puzzle). One day, when I met him, he had just come back     6     work. Tired as he was, he     7    (sound)so excited. Then I noticed that he was wearing shoes     8     did not match. He must have been working too hard to notice that!

Now I have come to realize that it’s good for you     9    (do)a job that interests you. You will be absorbed in it, and push yourself hard with it     10    (happy).

3 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

While some people can be pretty excited about their first airplane flight, 16-year-old Ashley was particularly nervous. Since the teen was born deaf. She was worried that     1     (she) lack of hearing would prevent her from receiving any details about her recent flight from Baltimore Maryland to Rochester, New York.

To make matters worse, she had     2     connecting flight from JKF International Airport, which can be a busy airport for even the most experienced fliers.

Thankfully, Ashley had a safe and successful flight. Thanks to a kind flight attendant, it was also a particularly     3     (memory) one.     4     (short) after Ashley’s plane took off from Baltimore, her Delta (达美航空) airline flight attendant-handed her a handwritten note,     5     explained everything about the flight and safety information. Ashley said that she had never experienced such kindness before and the note-which she now plans on keeping-     6     (mean) the world to her.

Delta later responded to the story by     7     (praise) their flight attended for her communication and announcing their plan     8     (make) it convenient for deaf passengers. Over the course of the next few months, airline staffers who can speak sign language will be encouraged to wear a bade (徽章) that will identify them to other passengers. “With the improvement, customers     9     qualified employees will immediately be able to recognize when they hold sign language as a common     10     (connect).” a Delta spokesperson said.

Beethoven: a remarkable life

Symphony No. 9 was Beethoven’s last major piece of music in a vast body of works written throughout his remarkable life. As a     1     (gift) child, Beethoven was pushed by his father to study music day and night. Not long after, he began     2    (appreciate) for his piano performances. By the time he was a teenager, he had already enjoyed a reputation as     3     wonderful young musician. Many important figures in the music world, including the brilliant musician Mozart, started making     4     (predict) about Beethoven’s extraordinary future. However, life took a sharp turn. In his late twenties, Beethoven suffered one of the     5     (bad) possible twists for a musician: he started to lose his hearing.

The loss of his hearing deeply     6     (depress) Beethoven. He was so upset that, at first, he wanted to keep it a secret. Even in his darkest moments, however, Beethoven never abandoned hope.     7     his hearing loss, he was determined to find a way to continue living a life full of music. He used a variety of hearing aids to try to increase the amount of sound he could take in. When     8     (compose) music at the piano, he would put one end of a pencil in his mouth and place the other end against the instrument so that he could feel the notes.     9     Beethoven was able to continue composing music, it became     10     (increase) difficult for him to perform in public. When Beethoven presented Symphony No. 9 in Vienna in 1824, it was his first time on stage in over ten years.

Eating in China

The mouth-watering hot pots of Sichuan are as famous overseas as they are in China, and the hot flavour is enough to heat up a cold midwinter evening or to let loose rivers of sweat on a summer afternoon. I gave it my     1     (one) try last night, together with a few local friends! As the soup bubbled slowly over a gas burner in the middle of the table, its surface     2    (cover) with a beautiful layer of chillies, Sichuan peppers, spring onions and red oil.     3     (slow) at first, and then faster and faster, we tipped plates of fresh meat, fish and vegetables into the pot. The hot flavour quickened our     4     (laugh) and conversation, making the meal the perfect way to relax with friends.

Sichuan hot pots are perfect for the damp, foggy climate     5     which they were invented. They are believed     6    (start) off in the late Qing Dynasty as a way for boatmen on the Yangtze River to keep warm during the cold and wet winters. In the beginning, the delicious dish was made simply by     7     (boil) vegetables, chillies and Sichuan peppers in water. Over time, it     8    (expand) to include multiple options of soups, vegetables, meats and sauces, appealing to people of different tastes.     9     I love best about Sichuan hot pots is that they offer a great opportunity to socialize with friends since a meal can last for hours. I instantly became     10     big fan of Sichuan hot pots and I’ll soon be back for more!

When I was a kid, Mom used to cook food for us. One night after     1     (spend) a long hard day at work, Mom placed a plate of bread jam and     2     (extreme) burnt toast（烤面包） in front of my dad, I was waiting     3     (see) if he noticed it. However, while eating his toast. Dad just asked me     4     my day was at school. I don’t remember what I told him that night,    5     I do remember I heard Mom apologizing to Dad for burning the toast. I’ll never forget what Dad said, “Honey, I love burnt toast.”

Later that night, I     6     (go) to kiss Daddy good night and asked him if he really liked his toast burned. He gave me     7     big hug and said, “Your mamma put in a long hard day at work today, really     8     (tire). Besides, a burnt toast never hurts but cold words do!”

What I’ve learned over the years     9     (be) that learning to accept each other’s faults is one of the most important     10     (key) to creating a healthy, growing and lasting relationship.

When 5-year-old A.J. Troiano from Bedford, New Hampshire, learned about Hurricane Harvey from his parents and grandparents,     1     showed him photos of the floods and explained what people in Texas—particularly the children—were going through and everything they had lost, he knew he had to do something about it. So A.J. announced he     2     (walk) around his block five     3     (time). Accompanied by his loving grandparents, of course, he made it for a total of two miles     4     (raise) money for the American Red Cross to support those who     5     (affect) by the hurricane.

He made a poster to show his cause and couldn’t wait to get started on his walk     6     next day when he arrived home     7     kindergarten. As he walked around the block, A.J.’s neighbors friends, and family came up and asked what he was doing, and he was     8     (pleasant) surprised when they started to join in and donate to the cause. He finished the walk, running fast home, with the total of $200 he raised. “I hope it is just the     9     (begin) for him in understanding on how one person can really make a     10     (different),” said A.J. ‘s grandmother, Kathy Ladd.

At four o'clock     1     a foggy day, Polly left work and stepped out into the fog , wondering if the buses would still be     2    (run). She walked     3    (quick)towards her usual bus stop, only to be told the bus couldn't run to King Street that day. She     4    (have) to take the underground to Green Park, where there was no one in sight. As she walked along the narrow street, Polly heard     5     same sound of footsteps approaching,     6    fortunately, it was gone quickly. Suddenly Polly was     7    (frighten) by a man's rough hand brushing her cheek. He said sorry to her and moved away. Then the     8     (footstep) were heard again. Polly was more scared than a minute before, and she couldn't move at all.

Luckily for Polly, it was a blind man     9    wanted to offer help. With the blind man's help, Polly got to     10    (she) living place, King Street.

Pan Shixue, a silversmith (银匠) in Maliao village in Guizhou Province, used to dream of people living     1     abundant life in his village, where nobody has to work far away from home and customers go there for beautiful silver jewellery. Now his dream has come true.

Maliao village is famous for its silver jewellery. In fact, Miao ethnic silversmith technique     2     (list) as China's national-level intangible cultural heritage in 2006. But with cheaper, machine-made trinkets (小首饰)     3     (rule) the market, they couldn't rely on the old technique to survive.

At that time, most people in the village lived under the poverty line,     4     means they could simply afford food and     5     (base) clothing, but seldom purchase things like bicycles or televisions. So many villagers left their hometown     6     (hopeless). But in 2018, the government allocated 580,000 yuan of poverty funds to set up the Silverware and Embroidery Workshop of Maliao Village, helping Maliao villagers fight poverty     7     their own crafts.

Since that year, most young craftsmen     8     (return) to their hometown and found a bright future. With the help of the government, they learned     9     (fashion) trends and how to meet clients' various     10     (request). Instead of holding on to old ideas and existing design, villagers enhanced their skills and made their products customized.