2020-2021学年韶关市一中实验学校高三英语二模试卷及参考答案

2020-2021学年韶关市一中实验学校高三英语二模试卷及参考答案第一部分阅读（共两节，满分40分）

第一节（共15小题；每小题2分，满分30分）

阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项

A

We are proud to present a showcase for kid inventions from children chosen from the Kid's Forum at Blue Print Earth. We hope you enjoy the ideas expressed here and join us in supporting the next generation.

Eater of Natural Disasters

My invention cansave your home by sucking up all-natural disasters. The government will not own this machine, but by you so there will be no taxes on it. Order Now! The Eater of Natural Disasters will run on renewable batteries. It will cost 50 dollars to make and I will sell it for just $ 75.

Created by Matthew Szekeresh —Mt.WashingtonElementary, 5th Grade.

Pick-up-Pollution Bomb

My invention is called the Pick-up-Pollution Bomb. It will just pick up pollution and it won't hurt anything else like people, animals, property, playgrounds, and parks. The reason why I made it is that I think there is too much pollution on the Earth. It sells for $100 apiece, and if you buy this now, I will send you another one for free.

Created gratefully by Lauren Newberry — Mt. Washington Elementary, 5th Grade

Flying House

My invention is a home that will blast off in space. For example, if there were an earthquake people would immediately blast off, or if there were a flood it would take off. Only for $ 400.99.

Created by David Turner —Mt.WashingtonElementary, 5th Grade

Bug Robot

My invention is a robot that catches little bugs, eats little bugs, sucks up pollution, sucks up natural disasters, and turns them into food solving the problems of too many little bugs, natural disasters, pollution and starvation. My product is worth $500. My invention works on 2 triple — A batteries. And if you order one today I'll throw in 4 rechargeable triple-A batteries.

Created by Cassie Courtey —Mt.WashingtonElementary, 5th Grade

1. Why is the Flying House created?

A. To explore the space.

B. To clean the air.

C. To prepare people for earthquakes.

D. To help people escape from natural disasters.

2. Which invention can turn pollution into food?

A. The Bug Robot.

B. The Pick-up-Pollution Bomb.

C. The Flying House.

D. The Eater of Natural Disasters.

3. What can we infer about the four inventions?

A. They are very easy to build.

B. They are ideas from kids in the same school.

C. They are expensive but of practical use.

D. They are being used by people.

B

Remember when your mom told you not to eat too many candy bars or sweets because they can cause tooth decay (蛀牙)? However, it turns out that chocolate can be moresalutaryto your teeth than you might expect. Recent studies show that chocolate can effectively fight against tooth decay, as if we need another excuse to eat chocolate.

Chocolate offers protection like fluoride, a main ingredient in most household toothpastes. Not only does chocolate protect our teeth, but it can do so very effectively. Studies show that chocolate has compounds that provide strong protection for teeth. One of the compounds in chocolate, CBH, is shown to protect even more effectively than fluoride.

Tooth decay happens when bacteria work to turn sugar into acids in our mouth. This is why eating foods with high sugar content can lead to more tooth decay. The compounds in chocolate, however, are anti-bacteria and can fight against bacteria in your mouth. The CBH compound in particular also works to strengthen tooth enamel (牙釉质), andprotects against tooth decay.

Does this mean you can cat as much chocolate as you want without worrying about your teeth? It depends on the types of chocolate that you like. The protective effect of chocolate is most effective when you chew on cocoa beans. Of course, this option is not very appealing to; most people. A more tasty option is to choose dark chocolate with little sugar content, ideally no more than 6 to 8 grams per serving. For other types of chocolate with higher sugar content, the effect will be lessened. However, because of the protective compounds, it is still better for your teeth than other sweets and desserts containing the same amount of sugar.

4. The word “salutary” in paragraph 1 means?

A. Beneficial.

B. Harmful.

C. Familiar.

D. Useless.

5. What can we know about the compound CBH in chocolate?

A. It can help chocolate cure tooth decay.

B. It can effectively stop teeth from decaying.