Humans were designed to stand upright. And yet in this modern world, too many of us spend our days with our heads lowered for a simple reason: we’re staring at the tiny screen of a smart phone.
People spend an average of 2 to 4 hours each day with their neck bent while shooting off emails or texts. That’s 700 to 1,400 hours a year. The success of social media has led to a rapid development of bad smart phone posture（姿势）.
The average adult head weighs 10 to 12 pounds when it’s in the upright position. However, because of the gravity, bending your head at a 15 degree puts 27 pounds of pressure on your spine(脊椎)；a 30 degree neck bend could equal 40 pounds of pressure; a 45 degree bend adds the force of 49 pounds, according to the research from Dr. Kenneth Hansraj from New York. These stresses may lead to many problems.
It’s no secret that correct posture is better for your back. According to the researchers, good posture is described as ears aligned(成一条直线) with the shoulders. In proper alignment, spinal stress disappeared. It is the best position for the spine. Standing tall doesn’t just make you look better; it improves your health, too. Other studies have found good posture has even been connected to ways of behaving. People who have poorer posture often have poorer physical and emotional health.
The researchers describe bad posture as “the head in a forward position and the shoulders dropping forward in a rounded position”. Bad posture has been connected to many medical problems, including headaches and other problems, depression and heart disease. This is why Hansraj said it’s important to be mindful of your smart phone posture. Though it is nearly impossible to avoid the technologies that cause these problems, people should make an effort to look at their phones with a correct posture.
1.Through the underlined sentence in paragraph 2, the author wants to show that _______.
A. the social media have its bad side
B. the social media have made a great success
C. people have to use social media unavoidably
D. more and more people are using smart phones
2.What does the third paragraph mainly tell us?
A. It’s healthy to bend your back regularly.
B. Your back is getting exercise as you bend it.
C. The average weight of an adult head always changes.
D. The more you bend your neck, the more stresses your spine gets.
3.Where does the text most probably come from?
A. A text book.
B. An advertisement.
C. A health report.
D. A book review
Living in the wild can be hard．Finding food and staying safe aren't easy．Each day, animals try to survive in their habitats．Not all animals get by on their own. Some animals form a close partnership with other kinds of animals．These pairings are called symbiotic(共生的)relationships．
In a symbiotic relationship, the animals depend on each other．One animal helps the other meet its needs．Sounds good, right? Not always．Some animals are not very kind to their partners．In some cases, one animal meets its needs but hurts its partner．Take ticks(扁虱), for example．These insects suck blood to live．To get blood, they attach themselves to other kinds of animals．Ticks can pass germs（细菌）that cause disease instead of helping their hosts．
In other relationships, animals don't treat their partners so poorly．Both animals benefit from living with the other animal．
Small animals called cleaner shrimps(清洁虾）have found a way of helping fish．As their name suggests, the shrimps clean the fish．They hang out at what scientists call a cleaning station．A fish stops by．Then a shrimp climbs onto the fish and even steps into the fish's mouth．The shrimp uses its tiny claws to pick stuff off the fish's body．That can include dead skin and tiny pieces of food that can hurt the fish．The fish gets a nice cleaning．The shrimp enjoys a tasty meal of fish trash．
Small birds called plovers（灰斑）are also in the cleaning business．They have big customers-crocodiles.Crocodiles have long noses filled with sharp teeth. Cleaning them is funny. When a crocodile opens its mouth, the plover hops right in．It lets the plover eat small, harmful animals attached to the crocodile's teeth．The plover gets an easy meal while the crocodile gets clean teeth．
1.The text is mainly about ________．
A. the hard life in the wild
B. some dangerous animals
C. animals living together
D. animals in a symbiotic relationship
2.According to the text, in a symbiotic relationship, ________．
A. animals depend on each other
B. birds depend on animals for food
C. both sides can get help
D. not all animals treat their partners well
3.According to the text, it can be inferred that ________．
A. living in the wild can be simple
B. different animals have different living ways
C. crocodiles mainly live on plovers
D. ticks are useful to some animals
On the first day of my new high school, I almost had a nervous breakdown. Everything about the school seemed so difficult. When I got home, my parents said, “You're nervous and that's okay. Everyone is afraid of high school.” I denied it. I wanted to be strong, so I refused to let anyone know about my fear, even my closest friends.
On the first day I was late for every class and was constantly lost. The school seemed like a puzzle that I couldn't figure out. Was this how the whole year was going to be? I didn't think I could rise to this challenge, especially carrying a huge backpack that I could hardly lift. It was so big that I could knock someone out with it!
Despite my fears, after the first week I finally had my schedule figured out. With the exception of falling up and down the stairs a couple of times and getting laughed at, high school was turning out to be not so bad. It was actually much better than middle school and much more challenging.Since then, I've been elected（选举）vice monitor of my class, which wasn't much of a victory since only three people ran for the four positions.
It is normal to be scared about a new school. Take a deep breath and relax. High school is something that any student can overcome. Make sure you participate in some out-of-class activities because you'll find it easier to make friends. Try to do your best, even if it isn't straight A's.
Most important of all, be who you are, whether you're a “fool”， an athlete, or a lower grader. Don't try to pretend to be someone you're not. Now you know the true secrets of high school.
1.The main reason for the author's fear on his first day is that ________.
A. he was not familiar with the new surroundings
B. his schoolmates were unfriendly to him
C. he was unable to work out the puzzle
D. his schoolbag was too heavy for him to carry
2.From the author's first day experience we can infer that ________.
A. he didn't know the right way to class
B. he got to school before classes began
C. he was fond of the school immediately.
D. his home was far from the school
3.After his first week at school, the author ________.
A. was still not accustomed to the schedule
B. was gradually used to the new school
C. found high school not so challenging as he had imagined
D. ran for monitor of his class against three other students
4.According to the passage, the secret of the author's success lies mainly in________.
A. making more friends
B. getting more A's at school
C. being who he really is
D. joining in out of class activities
假设你是李华。五一小长假即将到来，你和同学们约定去鸣翠湖国家湿地公园春游。现在邀请你校外教Eric一起去春游。主要内容如下：
1.活动的时间和地点；
2.活动内容（骑行，划船，垂钓，烧烤等）；
注意：1．词数为100词左右；
2．可适当增加细节，以使行文连贯；
提示词：鸣翠湖国家湿地公园 Ming Cui Lake National Wetland Park
Dear Eric,
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
下面短文中有10处语言错误。请在有错误的地方增加、删减或修改某个单词。
增加：在缺词处加一个漏字符号（∧），并在其下面写上该加的词。
删除：把多余的词用斜线（/）划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
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。
As the saying goes, “Chance favored the prepared mind.” I learned this from one of my experience.
I was not chosen as member of the volleyball team of our school. Because of this, I decided to give up play volleyball. Luckily, my best friend stopped me but pointed out that it was my laziness and poor preparation which led to my failure. After that, I practiced playing volleyball on every day. When another tryout arrived, I was full prepared and tried my best. As a result, I was selected and became an important player on our school team.
From this, I am firmly convincing that we are able to seize a chance as long as I get well prepared.
根据句意，首字母及汉语提示词, 在答题卡指定区域的横线上写出对应单词的正确、完整形式, 每空只写一词。
1.Keep me ________(通知) of any development.
2.The teacher d__________ that the students should hand in their homework promptly.
3.The_________(injure) to their key player could be a decisive factor in the game.
4.She remembered Lucy as beautiful, charming, and absolutely __________(delight).
5.The young couple had no children of their own and a_________ an orphan, who came to adapt to his new life after a few months.
6.He made an a__________ to escape from being punished.
7.He couldn’t come up with a(an) ___________(适当的) word to answer her.
8.Have you got any ___________(具体的) thoughts on how to deal with his difficulty?
9.The poems may not make sense and even seem ___________(矛盾的), but they are easy to learn and recite.
10.They paid famous artists to paint pictures of themselves, their houses and __________(所有，财产) as well as their activities and achievements.
