Coffee is one of the most popular drinks around the world.{#blank#}1{#/blank#}Expertsclaim that there are more flavors of coffee than there are of wine. Coffee contains caffeine, an element (成分) that raises our awareness, keeps us from falling asleep or simply gives us a kick in the morning or after lunch.

{#blank#}2{#/blank#} For a longtime doctors have told people not to drink too much coffee, because it may leadto heart problems, high blood pressure, insomnia (失眠) andheadaches.

        Scientists have now found out that it isthe quality of coffee and the way it is brewed (冲泡) that holds the key to our health.  {#blank#}3{#/blank#} Among other things, this is linked to the consumption of a strong brew of coffee. Experts also point out that different roasts and types of coffee beans have different effects on our health.

        A new study by a Harvard research groupsays that there is no link between coffee and health problems.{#blank#}4{#/blank#}Doctors, however, warn against drinking too much coffee, as it can lead to stomach problems.

        Coffee has many advantages, as the newstudy suggests. While alcohol makes people sleepy and slow-moving, coffee givesthem energy.{#blank#}5{#/blank#}

        Although a lot still needs to be uncovered about coffee, it seems to reduce the risk of cancer and diabetes.Reports show that people who drink coffee may develop Parkinson's disease laterin life, or maybe not at all.

A. There are many different types ofcoffee.

B. Scientists ask people not to drinkcoffee at night.

C. Elderly people in Greece live longerthan normal.

D. But experts are still undecided onhow healthy coffee is.

E. Sugar can change the different levelsof caffeine in a cup of coffee.

F. Drinking several cups of coffee a dayis not connected with heart diseases.

G. Getting together for a cup of coffeealso has a positive effect on relationships.

The Greatest Navigational Journey

    In 1787 Captain Bligh was given command of “The Bounty”, a three-year-old merchant ship. His mission was to transport breadfruit plants from the island of Tahiti to the West Indies. We know the popular story of this voyage and the rebellion, in which Bligh has been presented as hard, violent and thoroughly unpleasant captain. However, there is quite a lot of evidence to suggest that this picture is far from being true. He seems to have been unusually thoughtful about the health and welfare of his men. For example he made sure that his crew got exercise, insisted on cleanliness on his ship, and adopted the practice of giving them a drink which prevented scurvy every day.

    When Captain Bligh arrived in Tahiti, it became clear that it would be some months before the breadfruit trees were ready to be taken to the West Indies. Instead of going off right away, he gave his crew extended shore leave. This may have been a mistake as many were unhappy about leaving when the time came. Finally, on the return journey the rebellion took place. The ship was under the command of the rebels and Captain Bligh had to leave in a small boat.

    Captain Bligh's achievement was to get to dry land successfully. It is one of the supreme examples of seamanship. Apart from Bligh there were 18 members of his crew sailing in an open boat about 23 feet long and 7 feet wide. They took with them 25 gallons of water, 150 pounds of bread and 30 pounds of pork. They had no guns or other weapons. The boat was so low in the water that it seemed likely to sink at any time. On one occasion Captain Bligh tried to land on an island to get more water. He and his men were attacked by hostile natives and one of the crew was killed. At this point Bligh decided to sail directly to the Dutch settlement on the island of Timor without stopping. The distance was about 4,000 miles. The voyage took about 42 days and he had no advanced navigational equipment. However, his skill and commitment proved equal to the task and amazingly no one else died. It was truly a remarkable achievement.

    It's important to prepare for rainy days. Similarly, it's important to save money.{#blank#}1{#/blank#}Why? It's because they've got used to spending all the money they make. Sometimes, the hardest thing about saving money is just getting started. Here are some tips to help you save money.

    {#blank#}2{#/blank#}The first step in saving money is to know how much you're spending. For one month, keep a record of everything you spend money on. Once you have your data, organize these numbers by category(类别) and get the total amount for each.

    You can make a budget(预算). Now that you have a good idea of how much you spend in a month, what can you do now?{#blank#}3{#/blank#}To plan your spending, you can build a budget. In this way, you can limit over-spending and make sure that you put money away for unexpected situations.

    {#blank#}4{#/blank#}Doing so make it much easier to get started. Begin by deciding how long it will take to reach each goal. Some short-term goals include starting a fund to cover 6 months to a year of living costs and saving money for a vacation. Long-term saving goals are often several years or even decades away and can include saving for retirement and putting money away for a child's college education.

    Make saving money easier with automatic transfers (自动转帐). Automatic transfers to your savings account are very helpful.{#blank#}5{#/blank#}By moving money out of your checking account, you'll be less likely to spend money you plan to use for savings.

A. You can set savings goals.

B. You can record your costs.

C. You can plan your spending.

D. You can keep a record of what you do.

E. They can make saving money much easier.

F. However, some people find it hard to save money.

G. You can move money out of your savings account.

    Basic first aid is a very valuable skill to have when going on a camping trip.{#blank#}1{#/blank#}

    Cuts. With small cuts, you want to be careful to keep the area of the wound clean to avoid possible infection.{#blank#}2{#/blank#} If the cut has not stopped bleeding, raise the wounded area above the heart and place pressure on the area to stop the bleeding.{#blank#}3{#/blank#} The bandage should be held in place with tape, but should not be too tight.

    Blisters. Blisters can turn a fun walk in the woods into a terrible experience.{#blank#}4{#/blank#}Change your bandage and socks and keep the blistered area clean. Make sure that you pack different size bandages and first aid cream.

    Sprains. If you've got a heavy pack on your shoulders, it can be very easy to twist your ankles. Walking sticks can be a traveler's friend.{#blank#}5{#/blank#}A good ACE bandage should be packed in case of a sprained ankle. This can help fix the sprained area until you can get medical attention.

    After seeing the above dangers and treatments, it's also helpful to pack a small basic first aid kit for your trip. Make sure that you include items that are unique to you and fit your environment (bleeding, bruise, snake bite, etc.).

A. Cover the wound with a dry, clean bandage.

B. Wear comfortable shoes and socks during the trips.

C. They can help you keep balance on rough areas.

D. Treat the cut with first aid cream to prevent infection.

E. Below is a brief list of less-severe injuries that you can prepare for.

F. Blisters are an open wound and can get infected if not cared for.

G. Some climates can be very hot during the day and very cool at night.

    Passenger Information

    Carry-on Bag Rules

    When travelling on China Southern planes, we ask our customers to follow our simple bag rules.

    Each passenger is allowed to bring one bag onto the plane.

    Weight limit: Each carry-on bag may weigh up to 10 kilos.

    Size limit: Each carry-on bag can be up to 110cm long, 60cm high and 30cm wide.

    Additional bags and oversized/overweight bags may be allowed on the plane if there is enough room. There will be a fee for such bags (see the table below). Please note that if your bag breaks more than one rule then you must pay a fee for each rule broken.

    Safety Rules

    For the safety of our passengers, the following items must not be taken onto the plane:

    Bottles containing gas (e.g. cigarette lighter)

    Bottles containing any cream, oil or other liquid that are over 100ml.

    Note:

    If you have any liquid medicines over 100ml that you must use during your flight, please contact our customer service manager on 34533566 to make arrangements at least 24 hours before your departure. You will need to have a doctor's letter explaining why you need the medicine.

    Bag Fees

    No bag over 15 kilos will be allowed on the plane. **No bag over 150cm long or 80cm high may be taken on the plane. Passengers must put such bags in the plane's storage.

The periodic table of elements is a common sight in classrooms，campus hallways and libraries. The mode periodic table arranges the elements by their atomic numbers and periodic properties（周期性）. Several scientists worked over a century to assemble the elements into this format. 

In 1789，French chemist Antoine Lavoisiertried grouping the elements as metals and nonmetals. Forty years later，German physicist Johann Wolfgang Dobereiner observed similarities in physical and chemical properties of certain elements. He arranged them in groups of three in increasing order of atomic weight and called them triads，observing that some properties of the middle element，such as atomic weight and density，approximated the average value of these properties in the other two in each triad. 

A breakthrough came with the pu blication of a revised list of elements and their atomic masses at the first international conference of chemistry in Karlsruhe，Germany，in 1860. They concluded hydrogen would be assigned the atomic weight of 1 and that the atomic weight of other elements would be decided by comparison with hydrogen. For example，carbon，being 12 times heavier than hydrogen，would have an atomic weight of 12. 

In 1869，Russian chemist Dmitri Mendeleev created the framework that became the moder periodic table，leaving gaps for elements that were yet to be discovered. Mendeleev predicted the properties of some undiscovered elements and gave them names such as"eka-aluminum"for an element with properties similar to aluminum. Later "eka-aluminum"was discovered as gallium. 

German chemist Lothar Meyer produced a version of the periodic table similar to Mendeleev's in 1870. He left gaps for undiscovered elements but never predicted their properties. The Royal Society of London awarded the Davy Medal in 1882 to both Mendeleev and Meyer. The later discovery of elements predicted by Mendeleev verified（证实）his predictions and his periodic table won universal recognition. In 1955 the 101st element was named mendelevium in his honor. 

On UNESCO website，it wrote，"The Periodic Table of Chemical Elements is more than just a guide or catalogue of the entire known atoms in the universe；it is essentially a window on the universe，helping to expand our understanding of the world around us. "