Saying no starts small
    'All right then-just one more piece…' Words every girl has said when they are faced with the delicious cheesecake. Of course, many of us know we may eat the whole thing in the end.
    It isn't just girls. Most of us find it hard to say 'no' to something attractive, However, scientists now say that willpower is very important to success and a happy life.
    Scientists in different countries have been studying the effects of willpower on people's lives for a long time. The results are similar, according to an article on February 7 in the Guardian, a famous British newspaper.
    In one experiment, scientists told young children that they could either have a marshmallow(圆形软糖) now, or two marshmallows in 15 minutes. Waiting obviously needed more willpower. Scientists then continued studying the children as they grew up. They wanted to see if some children always had stronger willpower. They also wanted to see how having stronger willpower affected their lives.
    Years later, scientists found that the children who had waited for two marshmallows were all healthier, happier and richer adults. Oppositely, the children who had shown weaker willpower at that young age were more likely to be in low-paid jobs, to be overweight, to have social problems.
    But there is hope, Roy F Baumeister, an American social psychology(心理学) professor(教授) told the Guardian. Baumeister says we can train our willpower just like we train our muscles.  Even a little practice can strengthen our overall self-control if we do it regularly.
    You could start by making yourself stand up straight, speaking in complete sentences, or using a computer mouse with the other hand. Scientists have found that people who manage to change little habits often perform much better in laboratory willpower tests.
    Like muscles, willpower can 'get tired'. Don't try to do too many things at the same time, or when you don't have enough energy, for example when you are ill.  If you already feel tired, you can try to recharge(恢复) your willpower with a good night's sleep and by eating well.

一头奶牛重500千克，一头河马的体重是奶牛的6倍，河马重（　　）吨。

     When summer arrives, it's not uncommon to get a strong desire for sand and water. But those who can only make day-long trips may find it hard to achieve. Don't worry! Plenty of opportunities for kicking back in the sand exist here in Ohio, although it's far away from the oceans.

East Harbor State Park Beach

1169 N. Buck Rd., Lakeside-Marblehead

     Those looking for a bit of extra space between their blankets and their neighbors' will like this beach. At 1,500 feet long, the sandy strip has a significant amount of real estate(房产）for sunning or relaxing in the shade. Amenities(设施）include a bathhouse, vending machines, grills and picnic tables.

Nickel Plate Beach

Corner of Tiffin Avenue and Nickel Plate Drive, Huron

     Anyone who spends a day at the beach knows that swimming and doing sports on the beach give you a good appetite. Luckily, Nickel Plate Beach offers a variety of dining options nearby, including beachside pizza delivery. Amenities include a sheltered picnic area, charcoal grills, playground equipment and beach volleyball courts.

Main Street Beach

Main Street, Vermilion

     No beach umbrella or chairs? No problem. This beach offers hourly rents of chairs, umbrellas, tables, shade tents and wheelchairs. And with downtown Vermilion only a block away，shops and restaurants are nicely within reach. Amenities include an observation deck and some benches. No lifeguards are on duty.

Kelleys Island State Park Beach

920 Division St. Kelleys Island

     With its gradual water depth, this beach is perfect for young children. The park's campground also includes a playground and a store with snacks and ice cream. Other amenities include a picnic shelter and hiking trails.