Read the following paragraph, find out the topic sentence and write it on the answer sheet. 　Before 1800, no country in the world had an average life expectancy (预期寿命）at birth beyond 40. Today there is not a country that does not Since 1900, more years have been added to human life than in the rest of history combined, initially by reducing child death and lately by stretching life spans. Longevity is one of humanity^ great achievements, yet it is seen as one of society’s great headaches. The problem lies in the increasing dependence of the old on the young. By 2100, the ratio of 65-plus to “working-age” people will triple. As the world grays, growth, tax revenues and work forces will decline while spending on pensions and health care will increase.

Read the following paragraph, find out TWO irrelevant sentences and write them on the answer sheet. 　At some time in your life, you may have taken a time management class, only to find that it is a complete waste of time because it doesn't work. Indeed, our life is wasted in all kinds of classes. Time management classes fail because there are two types of time: clock time and real time. In clock time, all time passes equally. In real time, all time is relative. Time flies or drags depending on what you’re doing. Two hours can feel like 12 years. And yet our 12-year-old children seem to have grown up in only two hours. Children have no idea of time. Which time describes the world you really live in, real time or clock time? The good news is that real time is mental. You create it Anything you create, you can manage. Ifs time to remove any self-limitation you have around "not having enough time”, or today not being "the right time” to take the action.

Write a letter of thanks according to the following situation: You are doing research on environmental protection and need a book on that subject. Your friend (Chris) who is studying abroad bought the book and sent it to you. Write to him to express your gratitude, explain how important that book is, and ask about his situation. Please sign your name as Li Fei. (150-200 words)

Choose the best topic sentence from the four options below. Write the corresponding letter of your choice on the answer sheet.

Read the following paragraph and choose the best topic sentence from the four options that follow. Write the corresponding letter of your choice on the answer sheet. A poll of 2,000 adults revealed the age-old stereotype of men leaving things to the last minute is true, with men admitting to starting their holiday preparation as late as possible. The average woman starts their packing for a break four days before they leave，with more than one in ten allowing a foil week to get organized. But men don5t start packing until three days before they go, with more than half admitting they often leave it until a day or so before, or even on the day, they leave. Three in ten men admit they don’t prepare for things in advance and just tend to leave it until the last minute. But the last-minute rush when packing for a holiday has led to three quarters of men forgetting something important. And more than half of men find the packing process stressful compared to just 31 % of women.

The young man won the championship in the boxing match. The news soon spread all over the country, （complex sentence）

Because he doesn’t like the tight schedule in the company, Robinson decides to quit the job and start an online store, （compound sentence）

The glass plate has a unique style. It is very beautiful, （simple sentence）

Ford canceled the project due to strong opposition from the President. The President had repeatedly criticized the company for investing in Mexican jobs at the expense of American ones, （complex sentence）

Emotion management is a most important skill in children's education nowadays, （periodic sentence）