Only under special circumstances to take make-up tests． A．are freshmen permitted B．permitted are freshmen C．freshmen are permitted D．are permitted freshmen 题目和参考答案——青夏教育精英家教网—

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Only under special circumstances ______ to take make-up tests．

A．are freshmen permitted　　　　　　　　 B．permitted are freshmen

C．freshmen are permitted　　　　　　　　 D．are permitted freshmen

only位于句首后面跟状语时，句子要用部分倒装，故答案为A。又如：Only after my friend came was the computer repaired．

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B
Visiting Canada This Summer?
A visit to Canada begins with a stop at customs. This can be done quickly if visitors keep in mind the following general tips:
*     Most American visitors are allowed into Canada after answering a few simple questions. In some cases, customs officers may examine your car and your possessions.
*     You must have photo identification when you cross the border. If you are travelling with children who are not your own, they should have their own identification, and you need a permission note from their parents or guardians.
*     You can bring with you no more than 40 ounces (1.14 litres) of liquor or 52 ounces of wine or 24 containers of beer (355 ml or 12 oz. each). Please note that we classify coolers according to the type of alcohol they contain. Also, you may not bring more than 200 cigarettes. 50 cigars, 200 tobacco sticks, and 200 grams of manufactured tobacco without paying duty.
*     Generally speaking, you are allowed to bring personal goods for your trip into Canada.
*     You cannot bring handguns into Canada unless you have a special permit and only under specific conditions. You cannot bring long guns into Canada except in special cases such as hunting season or for use in a competition. You must declare all guns at customs or they will be seized. You cannot bring weapons such as mace into Canada in any cases. For more information, see pamphlet Importing a Firearm or Weapon into Canada.
*     You may qualify for a rebate （折扣）of the goods and services tax (GST) or the harmonized （协调的）sales tax (HST) you pay on accommodation （住所）and shopping you make while in Canada. For more information, see Tax Refund/or Visitors to Canada.
*     You may also bring gifts worth up to CAN$60 each for your friends or relatives in Canada without paying duty, as long as these do not consist of alcoholic drink or tobacco products.
*     Please do not wrap these gifts until after you have cleared customs, since an examination may be required.
Welcome to Canada and have a pleasant stay!
61. You can bring _____ litres of wine.
A. 1.2           B. 1.5             C. 1.7                D. 1.9
62． You may get your money from the tax at _____ .
A. the bank            B. the shop            C. accommodation         D. customs
63. What does the underlined word "they" refer to?
A. All guns.                            B. Mace and pepper spray.
C. Handguns.                          D. Long guns.
64. The topic of the passage could be _____.
A. clearing customs in Canada
B. things forbidden to bring into Canada
C. inviting people to visit Canada this summer
D. introducing Canadian customs

One of the most popular activities enjoyed by Americans is spending time in forests and walking along paths through the country.This activity，called hiking，has led to the creation of paths throughout the United States.

One of the longest is the Appalachian National Scenic Trail.The trail is the first completed part of the National Trails System.The trails system was established by Congress and the president in 1968.The Appalachian Trail is more? than 3,400 kilometers long.It starts in the northeastern state of Maine and ends in the southeastern state of Georgia.The trail goes through 14 states.They are Maine，New Hampshire，Vermont，Massachusetts，Connecticut，New York，New Jersey，Pennsylvania，Maryland，West Virginia，Virginia，Tennessee，North Carolina，and Georgia.

The path takes walkers through the Appalachian Mountains.They extend from the Canadian province of Quebec to the southern American state of Alabama.

The Appalachian Mountains are among the oldest on Earth.They first began forming about one thousand million years ago.During the millions of years since then，the mountains were changed and reformed by the forces of water and wind.Ice also changed the mountains，making many of them smaller and digging valleys and lakes among them.Many different kinds of trees grow along the trail.And many different kinds of animals live in the forests along the trail.

Lands along the trail are protected by the federal government and by state governments.Some parts are not protected by the government directly.Instead，they are protected by legal agreements with private owners willing to permit people to walk across their property.

Walkers on the Appalachian Trail pass through some of the great valley systems of the mountains.They can look down into these beautiful valleys and see farms and forests stretching across the land for many kilometers.Farmland in the valleys is rich and productive.And some of the great events in American history took place in the valleys.For example，one of the great battles of the American Civil War was fought in the Shenandoah Valley in Virginia.

1.The Appalachian Trail________.

A．is more than four thousand three hundred kilometers long

B．starts in the northern state of Maine

C．goes through more than fourteen states

D．ends in the southeastern state of Georgia

2. The Appalachian Mountains________.

A．are the first completed part of the National Trails System

B．began forming one million years ago

C．were changed by natural forces like water，wind and ice

D．were around by valleys and rivers and famous for its scenery

3. The lands along the trail________.

A．are protected entirely by either the federal government or state governments

B．are mainly protected by legal agreements with private owners

C．can be visited by travelers freely only under the permission of owners

D．are protected by both the federal government and state governments

4.What is mainly described in the last paragraph?

A．The Appalachian Mountains have some great valley systems.

B．Farms and grasslands stretch across the valleys for many kilometers.

C．One of the American independence battles was fought in the Shenandoah Valley.

D．Lakes in the Appalachian Mountains are one of the most beautiful sights.

.Only under special circumstances________to miss the final examination.

A are students allowed B allowed are students

C students are allowed D are allowed students

Only under special circumstances ____ to take those tests.

A.are freshmen permitted B. freshmen are permitted

C. permitted are freshmen D. are permitted freshmen

Ask three people to look out the same window at a busy street comer and tell you what they see. Chances are you will receive three different answers. Each person sees the same scene, but each perceives(察觉) something different about it.

Perceiving goes on in our minds. Of the three people who look out the window, one may say that he sees a policeman giving a motorist a ticket. Another may say that he sees a rush-hour traffic jam at the intersection. The third may tell you that he sees a woman trying to cross the street with four children in tow. For perception(感知) is the minds’ interpretation of what the senses — in this case our eyes — tell us.

Many psychologists(心理学家)today are working to try to determine just how a person experiences or perceives the world around him. Using a scientific approach, these psychologists set up experiments in which they can control all of the factors. By measuring and charting the results of many experiments, they are trying to find out what makes different people perceive totally different things about the same scene.

1.Perceiving is an action that takes place ______.

A．in our eyes	B．only when we think very hard about something
C．only under the direction of a psychologist	D．in every person’s mind

2.People perceive different things about the same scene because ______.

A．they see different things	B．they can not agree about things
C．some have better eyesight	D．none of these

3. Psychologists study perception by ______.

A．setting up many experiments	B．asking each other what they see
C．looking out of windows	D．studying people’s eyes

4.The best title for this article is ______.

A．How We See	B．Learning About Our Minds Through Science
C．What Psychologists Perceive	D．How To Become An Experimental Psychologist

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