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The wonderful experiment I am going to introduce proves that air is just all around and that it presses down upon us. Air pressure is a wonderful force. When you swim underwater, you can feel water push down your body. The air all around you does the same. However, your body is so used to it that you do not notice this. The pressure is caused by a layer of air called the atmosphere. This layer surrounds the Earth, extending to about five kilometers above the Earth’s surface.

The following experiment is an easy one that you can do at home. But make sure that you are supervised, because you will need to use matches. Now for the experiment!

What you need:

·A hard-boiled egg without the shell

·A bottle with a neck slightly smaller than the egg

·A piece of paper

·A match

Method:

1) Check that the paper will sit firmly on the neck of the bottle.

2) Tear the paper into strips and put the strips into the bottle.

3) Light the paper by dropping a burning match into the bottle.

4)Quickly sit the egg on the neck of the bottle.

Result:

Astonishingly, the egg will be sucked into the bottle. Your friends will be amazed when you show them the experiment. But be careful when you handle matches.

Why it happened

As the paper burns, it needs oxygen and uses up the oxygen(air)in the bottle. The egg acts as a seal in the neck of the bottle, so no more air can get inside. This reduces the air pressure inside the bottle. The air pressure must equalize, so more air from outside must enter the bottle. The outside air pressure against the egg and then the egg is pushed into the bottle! This proves that air is all around and that it is pressing down on it.

【小题1】Why is there the need to take care when you are doing the experiment?
A.The bottle could break.
B.You need to light the paper with a match.
C.The egg needs to be shelled.
D.The egg has to be perfectly placed on the neck of the bottle.
【小题2】In the experiment, the burning inside the bottle can ________.
A.equalize the air pressure inside and outside
B.make a seal in the neck of the bottle
C.finish up the oxygen inside the bottle
D.produce more oxygen inside the bottle
【小题3】How was the egg put into the bottle?
A.The oxygen inside the bottle sucked the egg in.
B.It became salt without the shell.
C.The neck of the bottle was wide enough.
D.The outside air pressure forced it into the bottle.
2018·安徽六安·一模
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Explore the magic of the underwater world

Reasons for visiting Georgia Aquarium (水族馆) in Atlanta

Atlanta’s aquarium is home to tens of thousands of animals including 500 species from around the world and more than 60 habitats. The largest exhibit at Georgia Aquarium is home to whale sharks, manta rays and more swimmers. The second largest exhibit is home to six beluga whales. And you won’t want to miss the dolphin exhibit and the dolphin show at Georgia Aquarium featuring an expansive underwater dolphin viewing window and a wonderful musical theatrical performance that highlights the bond shared between dolphins and humans.

Insider tips

○Arrive when the aquarium opens to beat the crowds.

○Have a sleepover inside some of Georgia Aquarium’s exhibits.

○Wear a wet suit, dive into the water and swim with whale sharks, manta rays and more

Know before you go

○Georgia Aquarium is open 365 days a year.

○Monday-Wednesday: 9 AM-6 PM

○Thursday: 9 AM-8 PM

○Friday: 9 AM-5 PM (Early closing for the themed party Sips Under the Sea)

○Saturday-Sunday: 8 AM-9 PM

Tickets Pricing

Penguin
Encounter
Sea Lion Encounter

Dolphin Encounter

Dive with the Whale SharksSwim with the Whale Sharks
$69.99   $63.99$79.99   $75.99$79.99   $75.99$359.99   $335.99$259.99   $245.99

【小题1】What can we learn about Georgia Aquarium?
A.It includes 600 species.B.It holds overground dolphin shows.
C.Visitors can stay the night there.D.Swimmers speak highly of its performance.
【小题2】When can people visit Georgia Aquarium?
A.At 5 PM on Tuesday.B.At 6 PM on Friday.
C.At 7 AM on SaturdayD.At 8 AM on Thursday.
【小题3】Which activity takes the most off the ticket price?
A.Dolphin Encounter.B.Penguin Encounter.
C.Swim with the Whale SharksD.Dive with the Whale Sharks.

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By Amy Ellis Nutt

In her writing for The Washington Post. Pulitzer Prize winning reporter Amy Ellis Nutt reveals the newest findings and the latest tools as scientists try to uncover the mysteries of what's been called the most complex object in the universe: the human brain.

A Marine on Trial

By John Woodrow Cox

Apparently, Naval Academy instructor seeks to prove he has done nothing wrong. But did he? Innocent? That's what Marine Maj. Mark Thompson declared the first time he met with Washington Post reporter John Woodrow Cox. He'd been attempting to prove it ever since two young women accused the fbnner history instructor at the U.S. Naval Academy of his violation.

Looking for America

By David Maraniss and Robert Samuels

The 2016 election was unlike any that we'd seen before. The campaign saw the rise of Donald Trump, the New York destroyer who seized the Republican Party from its confused establishment, and seized an angry electorate. What's happening in America? What does it mean to be American? For nearly 35 days, Washington Post journalists crossed the nation, a journey into the country's divided heart, looking for answers, recording them in this book.

The Resistance

By Joel Achenbach

Washington Post reporter Joel Achenbach explores our relationship with technology — frequently beneficial, occasionally opponent, and rapidly changing in a world growing more connected by the minute.

【小题1】If you take interest in psychology, which book may you purchase?
A.The Resistance.B.Brain Hacking.C.Looking for America.D.A Marine on Trial.
【小题2】What do the four books have in common?
A.They cover nearly all aspects of life.B.They tell about scientific discoveries.
C.They are books from newspaper reporters.D.They are mainly about the present America.
【小题3】Where can the text be found?
A.In a magazine.B.In a travel handbook.C.In a social survey.D.On a website.
Adult Basic Education (ABE) and GED Preparation
Task:
The Adult Basic Education Department serves a huge population of learners.Our task is to teach basic skills and help learners to get more knowledge to function effectively as a family member, citizen, worker, and lifelong learner in a changing world.
Description:
ABE is a non-credit program of self-improvement designed to improve basic skills for students who are of different educational level.Development of reading, writing, and math   skills are paid special attention to, as well as life skills, employability, and technology.Students without a high school diploma(文凭)also have the opportunity to prepare for the GED exams in the five subject areas writing, social studies, science, literature, and math.
Prerequisites (条件):
ABE classes are open to anyone 18 or over who desires to improve basic reading, writing, and math skills at the pre-college level.Students who are 16 or 17 must first obtain an official release( 证书) from high school before attending class.
To be accepted, students must attend an Educational Planning Session.During the Educational Planning Session students will be given an overview of the ABE programs as well as PCC policies, fees, etc.Students will also have their reading, writing, and math abilities assessed (评估) during the Educational Planning Session The results of their assessment will help the teachers develop individual programs of study for students to guide them toward their personal goals.Students needing special help must get in touch with the Office for Students with Disabilities (503-977-4341) at least two weeks before the session is held.
Courses:

【小题1】The ABE Department serves an aim to___________.
A.provide learners with basic knowledge and skills to fit in with society
B.help learners successfully get a job in a changing world
C.offer diplomas to those who fail to finish secondary education
D.provide students with opportunities to prepare for the GED exams
【小题2】A 17-year-old is not accepted to ABE classes only because he_____________.
A.is below 18
B.can't offer a high school diploma
C.has left school without official permission
D.is assessed as poor in learning performances
【小题3】What is the Educational Planning Session intended for?
A.Providing special help to disabled students.
B.Helping students be better at the four basic skills.
C.Finding out whether they can be accepted to ABE classes.
D.An assessment of students' basic skill levels.
【小题4】Different courses are offered to different students according to ___________.
A.their own choices
B.the assessments during the Educational Planning Session
C.their performances in school
D.how much they pay for the courses

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