Everyone needs to know how to prevent a fire. It is also important to know what to do when it {#blank#}1{#/blank#} (break)out.

    Every year, over 11，000 people {#blank#}2{#/blank#} (kill)or injured in house fires. These fires could have been avoided. Smokers who are {#blank#}3{#/blank#} (care)cause about 200 deaths and over 6,000 fires. More than of those {#blank#}4{#/blank#}  die in fires are poisoned or harmed by smoke.

    If fire happens, do not attempt to fight the fire unless it is small. Try putting out a small fire with water. If {#blank#}5{#/blank#} fire has spread or if the flames are more than 20 inches high, shut the door on it. Warn everyone else in the building and tell them to get out. You should leave and dial 911 for the fire department.

    Before {#blank#}6{#/blank#} (go)into a room，check the door. If the handle or the door is hot, do not open it! Instead, put clothing or a wet towel at the bottom of it to keep smoke out. If the door is not hot, open it  {#blank#}7{#/blank#} (slow)．If there is a rush of smoke heat, close it again and shout to warn {#blank#}8{#/blank#} (other)inside.

    Now open the window and shout “Fire!”. See whether you can drop safely to the ground. Use this {#blank#}9{#/blank#} your escape course if you can. If you are not on ground level, break your fall by pushing a mat out first. Lower yourself at arm's {#blank#}10{#/blank#} (long) before dropping. Once outside, stay out outside and make sure the fire department is called.

    Last summer holiday, I took part in a teaching project and volunteered{#blank#}1{#/blank#}(teach) in a countryside primary school for two weeks.

    When we arrived at the school, though shocked by the poor living conditions, we quickly adapted {#blank#}2{#/blank#} to the life there. My good friend Tom and I were in charge of the third year students, {#blank#}3{#/blank#}(consist) of just 18 boys and girls. We not only taught them English and maths, but also organized some after-school {#blank#}4{#/blank#}(activity) for them. Gradually, I found that many of the students were actually quite 6{#blank#}5{#/blank#}(talent). But some had to leave school early, which is{#blank#}6{#/blank#}(large) because their families were under heavy financial pressure, and they had to find a job to support the family.

    As well as giving lessons, we also helped set up a reading room in the school {#blank#}7{#/blank#} students hardly had any access{#blank#}8{#/blank#} good reading materials except textbooks. With the help of school staff and students, we cleaned out an abandoned classroom. When we placed the books students and teachers in my high school {#blank#}9{#/blank#}(donate) onto the shelves, I found the students were more than excited and {#blank#}10{#/blank#}(dive) into reading there.

    Two weeks quickly passed and we had to leave. I did not know how much we had actually taught them, but for me I learned a great deal—cherish what I possess and study harder.

    Eating organic food will not make you healthier, according to researchers at Stanford University, although it could cut your {#blank#}1{#/blank#}(expose) to pesticides（杀虫剂）. They looked at more than 200 studies of the content and {#blank#}2{#/blank#}(associate) health gains of organic（有机的） and non-organic foods. Overall, there {#blank#}3{#/blank#}(be) no difference in the nutritional content, although organic food was 30% less likely {#blank#}4{#/blank#}(contain) pesticides.

    The researchers looked at 17 studies comparing people who ate organic {#blank#}5{#/blank#} those who did not and 223 studies {#blank#}6{#/blank#} compared the levels of nutrients, bacteria, and pesticides in various foods. However, none of the human studies ran for longer than two years, {#blank#}7{#/blank#}(make) conclusions about long-term{#blank#}8{#/blank#}(outcome) impossible. And all of the available evidence was{#blank#}9{#/blank#}(relative) weak and highly variable, which the researchers said was unsurprising because of all the different variables.

    Dr Crystal Smith-Spangler, the lead researcher, said “Some believe that organic food is always healthier and more nutritious. But as {#blank#}10{#/blank#} matter of fact there isn't much difference between organic and conventional foods, if you're an adult and make decisions based simply on your health.”

    When I left for the United States to study, I had butterflies in my stomach. I was nervous because I was going to {#blank#}1{#/blank#}new place with new people and new customs. I couldn't even understand{#blank#}2{#/blank#}(they) language. Everything was{#blank#}3{#/blank#}(difference) from my own country. There was nobody {#blank#}4{#/blank#} I could talk to. I just had my husband, who was a new person for me, too.

    It was a sad moment {#blank#}5{#/blank#} I had to say goodbye to my family and friends. I didn't want {#blank#}6{#/blank#}(leave) my hometown because I grew up there and had wonderful{#blank#}7{#/blank#} (memory) of the place.

    So, {#blank#}8{#/blank#}(think) about all these changes made me nervous and I {#blank#}9{#/blank#}(worry) about my new life. But studying abroad was a {#blank#}10{#/blank#}(decide) that I made myself. I had to continue and accept the challenge. I looked forward to visiting my family in the summer vacation.

    When we read a poem, we often imagine what the poets{#blank#}1{#/blank#} (think) when they wrote or what they were doing at the time. These thoughts let us connect with the words better, as if we'd created the poem{#blank#}2{#/blank#} (we). Will a poem still mean as much if a compute writes it?

    By{#blank#}3{#/blank#} (use) algorithms (算法) , computers can now create all kinds of text, including research papers, books, news, stories and even poems. Computer-generated poems might be correct in both grammar and style, {#blank#}4{#/blank#}some say they still lack {#blank#}5{#/blank#} (create) and true meaning.

    Australian researcher Oscar Schwartz created a website{#blank#}6{#/blank#}(call) "bot or not". On his site, you can read poems and guess whether they{#blank#}7{#/blank#}(write) by a human or a computer. Schwartz recently gave a speech at TedX Sydney, in {#blank#}8{#/blank#}he stated that some of the website's poems were able to{#blank#}9{#/blank#}(foolish) 65 percent of human readers.

    He said that on his website, he hoped people would question the difference between humans and machines—and be able to identify what it is {#blank#}10{#/blank#}makes us human.