—We hear so much about exercises these days. So even experts can't agree on which exercises are best. Now some doctors are strongly encouraging arm exercises.

—Arm exercises? {#blank#}1{#/blank#}

—{#blank#}2{#/blank#} They say that arm exercises are a way to become physically healthy.

—But don't arm exercises raise your blood pressure?

—Yes. But the articles I read supply ways to make up for that.

—How?

—By adding leg exercises, so that the arms don't do all the work.

—{#blank#}3{#/blank#}

—Sounds right to me. I quite agree with you.

—{#blank#}4{#/blank#}

—They mentioned quite a few, but some of the popular ones are cycling with special

bicycles that make you use both your arms and legs.

—{#blank#}5{#/blank#} So I'd like to have a try.

—The same with me.

A. So what exercises do the experts suggest?

B. The more leg exercises you do, the better you are.

C. And in turn I'm sure that they're also a good chance of losing weight.

D. Actually that's not the main reason.

E. What's your opinion about this?

F. Is that because our arms are too fat or soft?

G. I can hardly believe it.

    Reading books is one of the best hobbies.It not only helps you pass your time but also helps you increase your knowledge in a meaningful manner.{#blank#}1{#/blank#}Here we will give you a few tips that can help you.

    Fall into the habit of borrowing books to read.

    This is a very old school practice but still it can be highly effective（有效的）.When you borrow a book,there is obviously a deadline（期限）set.{#blank#}2{#/blank#}

    Read everywhere.

    Keep a book in your bag and read it anywhere you go.This will help you to pass your time in a very productive manner.{#blank#}3{#/blank#}Anyway,you can read your book 24 hours a day.

    {#blank#}4{#/blank#}

    This can easily be described as a new school technique.You can read out to your brother or sister and this will enable you to finish your book as well as well as increase the knowledge and understanding of your brother or sister.

    Choose your books very carefully.

    {#blank#}5{#/blank#}Thus choose your books very carefully in order to enjoy your time and also finish your book effectively.If you choose a good book that can keep you interested a for a longer period of time,there is no way that you are going to leave it incomplete.

A.Read out to someone else.

B.Realize the importance of reading books.

C.Therefore,it is necessary to develop the reading habit.

D.Find an excuse to read every day just by visiting book clubs.

E.Yes,life is too short to read a book that doesn't impress you.

F.It doesn't matter whether you are traveling or are about to sleep.

G.This can encourage you to read it often to finish the book on time.

    Are you suffering from FOMO—that is, Fear Of Missing Out? Research shows that a growing number of young people are, with worrying consequences for their sleep and schoolwork.

    {#blank#}1{#/blank#}You aren't able to do your best unless you sleep well. Most experts agree that the optimum(最适宜) number of hours is eight, and this has been accepted as common sense for as long as I can remember. However, I was young once and know most of you get much less sleep than that.

    I read an interesting article in a teachers' magazine recently.{#blank#}2{#/blank#}Worryingly, the results showed that teenagers are facing a new problem. They may go to bed and get up at appropriate times, but a growing number are waking up in the middle of the night, not to use the bathroom or have a snack, but because of FOMO.

    According to the article, the number of students waking up during the night to check social media is growing. Afraid of missing a comment or opportunity to take part in a chat, teenagers are waking at all times of the night, going online and getting involved.{#blank#}3{#/blank#}

    Experts are worried about this growing trend and the report reveals some worrying statistics: 23% of 12-to 15-year-olds wake up nearly every night to use social media.{#blank#}4{#/blank#}One in third of the students are constantly tired and unable to function to their full capacity.

    So I'd like to ask you to be responsible when it comes to social media. Switch off your devices at night. The world won't end and your social media will be waiting to greet you in the morning!{#blank#}5{#/blank#}

A.But things are getting out of hand.

B.They did a study of 848 students in Wales.

C.Another 15% wake up at night once a week for the same reason.

D.I give you my word that you won't have missed anything important.

E.All happens when they should be sound asleep.

F.FOMO is the fear that everyone else is having more fun and more excitement than you.

G.Everybody knows how important it is for students to get a good night's sleep every night.

    Scotland has long been characterized as a land of romance. It contains ruins of many ancient castles and abbeys，and there is an attractive beauty in its mountains，long deep valleys，and ribbon lakes. Each year those things attract a great number of tourists.

    Numerous islands line the coast. In the north are two large groups，the Orkney Islands and the Shetland Islands. Close to the west coast are the Inner and Outer Hebrides groups，and the islands of Arran and Bute.

    The land may be divided into three regions: the Highlands in the north，the Central Lowlands and the Southern Uplands.

    The Highlands are wild and picturesque(如画的). A long valley called Glenmore crosses the Highlands from southwest to northeast.

    In the south of the Highlands are the Grampian Mountains，highest in the British Isles. Ben Nevis，the highest peak，rises to 1，243 meters. Ben Lomond rises from the shore of Loch Lomond，Scotland's largest freshwater lake.

    The Central Lowlands run from southwest to northeast and the greatest length is nearly 145 kilometers. The soil here is fertile，and there are four coalfields underlying the area. In the east is Edinburgh，Scotland's historic capital city，and in the west is Glasgow. Almost 90 percent of Scotland's population live in the Lowlands.

    In the Southern Uplands，the hills are generally less than 600 meters high. Their rounded or flat tops are often capped with dark peat(泥炭). Along the slopes are plants like grass and heather(石南花).

How to interview for your dream job

    Here are some tips for getting your foot in the door and then maximizing your chance of getting that dream job.

    Do some homework first.

    Google the company and find out as much as you can about their mission, {#blank#}1{#/blank#} Try torelate the position you're interviewing for to these overall corporate goals.

    {#blank#}2{#/blank#}Look the interviewer in the eye when you meet him/her. This shows confidence, indicating smartly to the interviewer that you feel as though you belong in the room. Do not just touch hands with people when shaking with them. This will doom you to many. Instead, grab their hand and shake with some firmness, but not with a death grip.

    Focus on the point.

    It's not about you, it's about them, Whenever you interview, keep in mind that it's about them, not about you, {#blank#}3{#/blank#}Try to relate your assets(资产) to the overall mission of the company. The stronger connection you can make, the better.

    Close positively.

    Whenever an interviewer leaves you, shake their hand and thank them for their time. Look them firmly in the eye again. {#blank#}4{#/blank#}

    Write a thank-you email.

    {#blank#}5{#/blank#}The next time you're at your computer, fire off an email to each person you interviewed with thanking them for their time, Mention that you're excited by the prospect of working for the organization and how you think it's a great fit.

A. Greet appropriately.

B. Mind your language.

C. Read a recent annual report of the company.

D. This leaves them with a positive impression of you.

E. Send an email thank you as soon as you can after the interview.

F. It's not what the company can do for you, but what you can do for the company.

G. However, it is vital in the short term as it is a way to continue a positive interaction.

Any schoolchild knows that a whale breathes through its blowhole. Fewer know that a blowhole is a nostril （鼻孔） slightly changed by evolution into a form more useful for a mammal that spends its life at sea. And only a dedicated expert would know that while toothed whales, such as sperm whales, have one hole, baleen （鲸须） whales, such as humpback and Rice whales, have two. 

Even among the baleen whales, the placing of those nostrils differs. In some species they are close together. In others, they are much further apart. In a paper published in Biology Letters Conor Ryan, a marine biologist at the Scottish Association for Marine Science, suggests why that might be. Having two nostrils, he argues, helps whales smell in stereo （立体空间）. 

Many types of baleen whales eat tiny animals known as zooplankton （浮游动物）， which they catch by filtering （过滤） them from seawater using the sheets of fibrous baleen that have replaced teeth in their mouths. But to eat something you first have to find it. Toothed whales do not hunt by scent. In fact, the olfactory bulb-the part of the brain that processes smell-is absent in such creatures. But baleen whales still have olfactory bulbs, which suggests smell remains important. And scent can indeed give zooplankton away. Zooplankton like to eat other tiny creatures called phytoplankton （浮游植物）. When these are under attack, they release a special gas called dimethyl sulphide, which in turn attracts baleen whales. 

Most animals have stereoscopic senses. Having two eyes, for instance, allows an animal to compare the images from each in order to perceive depth. Having two ears lets them locate the direction from which a sound is coming. Dr Ryan theorized that paired blowholes might bring baleen whales the same sorts of benefits. 

The farther apart the sensory organs are, the more information can be extracted by the animal that bears them. The researchers used drones to photograph the nostrils of 143 whales belonging to 14 different species. Sure enough, baleen whales that often eat zooplankton, such as the North Atlantic right whale, have nostrils that are farther apart than do those, such as humpback whales, that eat zooplankton occasionally. Besides allowing them to breathe, it seems that some whales use their blowholes to determine in which direction dinner lies.