A new study     1     ( make ) last week, provides evidence of an increase in the number of fat and overweight children and young adults worldwide in just 40 years.

The researchers studied fatness     2     young people, between 5 and 19 years old. This was one of the     3     ( big ) epidemiological (流行病学的) studies ever done. They used the information     4     ( get ) the Body Mass Index measurements of the subjects.

The most obvious     5     ( change ) have taken place in Middle Income Countries. WHO defines Middle Income Countries as places     6     a person normally earns between $1,045 and $12,736 every year. The researcher says fatness has     7     effect on children, with some evidence     8     ( suggest ) that it can affect their educational performance.

The report is calling for policymakers to find ways to make healthy food easier to get at home and school,     9     ( particular ) in poor families and communities.     10     also calls for higher taxes on unhealthy food.

Few people I know seem to have much desire or time    1       (cook). Making Chinese dishes is seen as especially troublesome. Many westerners     2     come to China cook much less than in their own countries once they realize how cheap     3     can be to eat out. I still remember     4     (visit) a friend who’d lived here for five years and I was shocked when I learnt she hadn’t cooked once in all that time.

While regularly eating out     5     (become) common for many young people in recent years, it’s not without a cost. The obvious one is money; eating out once or twice a week may be affordable but doing this most days adds up. There could be an even     6     (high) cost on your health. Researchers have found that there is     7     direct link between the increase in food eaten outside the home and the rise in     8     (weigh) problems.

If you are not going to suffer this problem, then I suggest that the next time you go to your mum’s home         9     dinner, get a few cooking tips from her. Cooking food can be fun. You might also begin to notice the       10     (effect) not only on your health but in your pocket.

Do you want to get fit     1     going to the gym? Now HOME-TRAINING, a fitness and     2    (manage) app, will help you create your     3    (person) at-home training plan. The app provides training and teaching programs,     4    (include) gymnastics, running, yoga, riding and all kinds of other     5    (athlete) activities. It also gives suggestions     6    buying suitable equipment. Users can upload photos, share experiences and tips and meet people     7     similar interests     8     using the app.

Chen Wei was eating at a restaurant when he     1     (interrupt) by a scream. Someone was     2    (choke). Chen ran to him immediately and performed the Heimlich manoeuvre. The food was forced out and he was saved.

Choking victims are usually in danger of losing lives. To solve this problem, in 1974,    3    American doctor, Henry Heimlich, created the Heimlich manoeuvre, saving many lives. It is quick,     4     practice), and easy to learn.

Slapping choking victims often helps. If useless, perform the Heimlich manoeuvre     5    standing behind him and wrapping your arms around his waist. Make a fist with one hand and place it in the upper part of his stomach.    6    (grab) your fist with the other hand tightly, push up and into his stomach in one motion. Continue doing this    7    the obstruction is forced out.

But when a small child is choking, you'd lay him face down on your lap with the head     8    (low) the rest of his body, and then give firm slaps to his upper back until he can breathe again.

With choking victims, time     9    (count). Chen gave first aid in time. He said he could not     10     (just) sitting there. He set us a good example.