For most kids, back-to-school time is usually bitter-sweet. The bitter part is saying goodbye to carefree, unscheduled summer days. The sweet part is saying hello to a new school year and school friends.

This exciting time is filled with smells of new books, paper and pencils. Children might wear a new set of clothes. And, of course, there are the first-day-of-school pictures that parents share with family and friends.

However, going back to school can also be a stressful time for children and families. Every kid must make the transition from easy summer life to routines, schedules and homework. Families will have financial concerns. Parents often need to pay school fees or to buy new school clothes, sports equipment, musical instruments and school supplies.

Back-to-school stress is different for different ages. Younger children may feel scared to leave their families. Making new friends and dealing with bullying can also cause stress for them. Older students may be stressed about their appearances, grades and getting into a good college.

However, parents, teachers and children can all help to make the transition back to school easier. Mary Anne Aidala, an award-winning teacher, advises parents to focus on the basics — let kids get enough sleep, eat healthy foods, and turn off electronics before bedtime.

Lori Bambina has been a teacher for 22 years. She teaches first grade in NY now. According to her, routines and knowing what a teacher wants in the classroom help to reduce stress in kids. So, she focuses on the class routine during the start of the new school year. “Well, for the students, I have my classroom set up with a very clear system. So, I will introduce the system. Then I will revisit the system because at this young age they enjoy routines. And that routine is very comforting and will not cause them stress if they know exactly where things are located and what type of behavior is expected of them.”

4. Back-to-school time can be stressful for parents because ________.

A．teachers will set many challenging tasks for them

B．they don’t know how to reduce stress in their children

C．they need to organize everything well for their children

D．they have to spend a lot of money for the new school year

5. When older students go back to school, they may ________.

A．be unwilling to go to college	B．be worried about their studies
C．be afraid to leave their parents	D．have difficulty making friends

6. Lori Bambina believes students will feel less stressed ________.

A．the classroom is decorated beautifully	B．teachers have low expectations of them
C．they know what they are expected to do	D．they have a good relationship with teachers

7. Which of the following can be the best title for the passage?

A．Causes of back-to-school stress	B．Mixed feelings about going back to school
C．Getting school life back to normal	D．Dealing with back-to-school stress

Facial recognition technology is already widely used by governments and some advertising companies. The technology uses machine learning tools to search for faces in an attempt to identify people.

In a recent study scientists announced they had developed machine learning tools to track the faces of individual wild chimpanzees （黑猩猩）.Dan Schofield said that the system was developed to improve the quality of information collected about chimpanzees in the wild over a long period of time.

"For species like chimpanzees, which have complex social lives and live for many years, getting snapshots of their behavior from short-term field research can only tell us so much," Schofield said.

The researchers wanted to get a more complete understanding of the lives of the chimpanzees by studying them over several generations. But doing this would have required searching through hundreds of hours of video recordings of chimpanzees in the wild.

The researchers recorded the activities of a group of chimpanzees that lived in the West African nation of Guinea. A facial recognition computer model was trained using more than 10 million images of the animals. The model was then used to search, recognize and track individual chimpanzees. The system was able to identify individual chimpanzees correctly about 92 percent of the time. It successfully identified the animals' sex 96 percent of the time.

The study included an experiment with humans to see how they could perform against the machine learning system in making identifications. The human persons were able to correctlyidentify individual chimpanzees about 42 percent of the time. The machine learning tool was much faster at completing the experiment. Human experts took about 55 minutes, while the computer took only seconds.

The researchers say they are permitting other scientists to use the system for similar projects. They hope the method will be used with other species to record animal behavior and monitor different animal populations in the environment.

12. What can we infer from Schofield's words?

A．Researching chimpanzees needs more information.

B．Chimpanzees can live as long as humans.

C．Chimpanzees like to get snapshots too.

D．Short-term field research provides more information.

13. What does the underlined word "this" refer to?

A．Recording the chimpanzees in the wild.

B．Studying chimpanzees over several years.

C．Understanding the lives of the chimpanzees completely.

D．Getting snapshots of chimpanzees' behavior.

14. What did the experiment with humans prove in the study?

A．Humans make more accurate identifications.

B．The machine learning system is more effective.

C．Humans can't identify the animals' sex correctly.

D．Machine learning tools take a little more time in identification.

15. What is the best title for the text?

A．Facial recognition for animals is becoming popular

B．Facial recognition is helping animals live in the wild

C．Facial recognition plays a role in raising animals

D．Facial recognition is used to identify and follow animals

I had a lot on my mind as I picked up the pieces of what had once been my Peppa Pig on the snowiest day last year. Only twenty-four hours before, I had been ________ with it in our farmhouse. How quickly things ________! The house I had lived in disappeared. The fire had ________ all those things with my memories.

I have never known my mother to be ________. In fact, my whole family has always been positive. But ________ picking up my ashen clothing on this cold winter morning, she moved with emptiness. The ________ was so heavy to us.

Days passed and the situation didn’t become ________. After moving to the temporary house, my father told me dealing with this would cost ________ money. It brought about a wave of ________ and life became a struggle.

“Hey, Tony, ” a classmate came up to me at lunchtime with a box in her hands. ________, all my classmates stood up. “Tony, we know what ________ a few days ago. This is not something you have to go through ________. Alex, Phoebe and I started up the Shoebox Fund for you. Almost every student in our school ________. We love you and we want you to have this.” She ________ me with the box. I opened it to find piles of twenty-dollar bills and notes of love.

My eyes were filled with ________, and I had never been so moved. I had felt so lonely for the days after the fire that I became ________, unwilling to communicate with others. But these people looked past the rudeness I had ________ them. They were my true friends and by sharing this ________, they were my family.

Yes, things are getting back to ________. But what I learned from this journey of discovery will ________ with me forever.

21.

A．dealing

B．playing

C．equipping

D．combining

22.

A．began

B．worked

C．changed

D．increased

23.

A．put out

B．taken away

C．cut off

D．looked after

24.

A．pleased

B．encouraged

C．dissatisfied

D．hopeless

25.

A．when

B．because

C．though

D．if

26.

A．worry

B．hit

C．burden

D．duty

27.

A．easier

B．better

C．faster

D．worse

28.

A．extra

B．private

C．huge

D．pocket

29.

A．sadness

B．nervousness

C．peace

D．thought

30.

A．Generally

B．Finally

C．Secretly

D．Suddenly

31.

A．existed

B．continued

C．remained

D．happened

32.

A．straight

B．alone

C．naturally

D．socially

33.

A．believed

B．accepted

C．donated

D．paid

34.

A．presented

B．shared

C．helped

D．handed

35.

A．curiosity

B．judgment

C．words

D．tears

36.

A．patient

B．disappointed

C．silent

D．confident

37.

A．shown

B．offered

C．returned

D．labelled

38.

A．belief

B．interest

C．experience

D．practice

39.

A．subject

B．reality

C．nature

D．normal

40.

A．compare

B．stay

C．connect

D．agree

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。

We all know clean water is important for good health. But now we also know we should watch     41     we keep our water in. Plastic bottles hardened with a dangerous material     42    (call) BPA can release a chemical into our water that harms our bodies. Since 2011, many countries     43    (ban) plastic with BPA from use in food containers and baby bottles. But are other non-BPA plastics safe?

Plastic labeled BPA-free might use other chemicals that have     44    (harm) health effects.     45    (Study) have shown that low levels of those chemicals might have the same effects as BPA. So, what should people do? The     46    (good) material to drink from is glass,     47     has no chemicals that can poison water.

Another good choice     48     a drink container is stainless steel. Stainless steel bottles are better than aluminum bottles, which are covered with a thin plastic     49    (protect) the metal from acids. There are many good food-grade stainless steel water bottles on the market.

If you do decide to use a reusable plastic water bottle, avoid     50    (keep) it in the sun. Sunlight and hot liquid speed up the release of chemicals into your drinking water.

51. 假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从第11处起）不计分。

I spent a unforgettable winter vacation this year, during what I became an independent learner. In the beginning of the vacation, I made a detailed learning plan. With a clear aim in my mind, he was always in high spirits every day. To my delighted, I could carry out the plan strictly. Whenever I meet with difficulties, and I turned to my teachers and classmates for help through the Internet. Thanks to the convenient video chat app, I could get my problems solve in time. Gradual, I gained more confidence in my weak subjects. Also, I had a great sense of accomplishment as my independent learning ability mastered.

52. 假定你是李华，你的新西兰笔友Johnson发来邮件说他最近经常失眠。请你给他回一封电子邮件，内容包括：
1.表达你的关心；

2.就应对失眠提出你的建议。
注意：
1.词数100左右；
2.可以适当增加细节，以使行文连贯；
3.开头和结尾已给出，不计入总词数。
参考词汇：失眠：insomnia
Dear Johnson,
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua