A. remarkable design B. interesting name

　 C. major features D. basic elements

13. According to the inventors, shrilk has great potential partly because .

　 A. it can help plastic degrade

　 B. it can be found in living things

　 C. its mass production has been realized

　 D. its raw materials are abundant in nature

14. What are the inventors doing in the lab?

　 A. Replacing carbon fibers with shrilk.

　 B. Testing shrilk's use in wet conditions.

　 C. Making shrilk out of used household goods.

　 D. Improving shrilk's flexibility for medical purposes.

15. Which of the following can be the best title for the passage?

　 A. Recent Progress in Environmental Protection.

　 B. Benefits of Insects in Scientific Research.

　 C. The Harm of One-time Products.

　 D. A Possible Alternative to Plastic.

第二节（共5小题，每小题2分，满分10分）

　　阅读下列一篇短文，根据短文内容，从短文后的A、B、C、D、E、F、G 7个选项中选出能填入空白的最佳选项，并在答题卡上将该项涂黑,选项中有两项为多余选项。

How to Rent Your House

　　Before handing the keys to your house over to a complete stranger for care, there are decisions you need to make. In fact, the decisions you make now, before searching for a tenant (房客), will make the biggest impact on the success of your rental. 16

What Condition Do You Want Your House in?

　　There is no end to the amount of improving you can do to your house before renting it out. 17 When is good enough, good enough?

　　A house should be clean, empty (unless you are offering it "furnished", which is uncommon) and free from any major repairs at the time the tenant moves in.

　　Remember, the home does not need to be as fancy as you would want it to be. 18 Tenants will generally never take as good care of your house as you do―so don't spend too much time or money making unnecessary upgrades that will only be ignored or broken.

Should You Use a Property Manager?

　　 19 If you have the time, abilities, and energy to manage yourself―you can save a good deal of money by doing so. However, if you try to manage without the ability―it could end up costing you much more than what a property manager might charge.

How Much Can You Rent Your House for?

Luckily, discovering what the monthly rent will bear for your house is not difficult. 20 In