问题 单项选择题

李工程师:农科院最近研制了一种高效杀虫剂,通过飞机喷洒,能够大面积地杀死农田中的害虫。
张研究员:我看使用这种杀虫剂未必能达到保护农作物生长的目的,甚至可能适得其反,因为这种杀虫剂在杀死害虫的同时,也杀死了农田中的各种益虫。
李工程师:你的观点缺乏说服力,因为我们之所以要保护益虫,就在于它能消灭危害农作物的害虫,而我们的杀虫剂起到了这个作用。
以下哪项如果为真,最能加强李工程师对张研究员观点的反驳

A.一般地说,害虫的生长繁殖能力和速度要高于益虫。

B.上述杀虫剂对人畜无害。

C.害虫比益虫更容易获得对于杀虫剂的抗药性。

D.上述杀虫剂的有效率,在同类产品中是最高的。

答案

参考答案:A

解析: 如果A项为真,说明在消灭害虫方面,杀虫剂有益虫不可替代的作用。这就有力地加强了李工程师对张研究员观点的反驳。

阅读理解

Useful Information in Australia

Useful Numbers

All the telephone numbers are useful and free.

。Fire/ Police/ Ambulance(救护车)—000     Telephone information—12455

。Medical(医学的) Care—1300369359       Taxi—1800421113

Surfing the Internet

With so many Internet tearooms and public libraries, it’s easy to surf the Internet in Australia.

Also it’s very cheap for you to surf the Internet.

。Public libraries offer free Internet every day even during public holidays.

。Many travel managers provide connection which is cheap or free.

Post Service

All post offices around the country offer post services(服务) so you can receive mails as you travel around the whole country.

。Post offices are usually open from Monday to Friday from 9 am to 5 pm.

。It costs 50 cents to send a standard(标准的) letter in Australia.

Public Holidays

On public holidays all shops are closed across Australia, so are banks and post offices.

。New Year’s Day—1st January

。Australia Day—26th January

。Christmas Day—25th December

小题1:If there is a fire, you can call________ in Australia.

A.1300369359

B.180042113

C.000

D.12455小题2:Which is the right time to send a letter in a post office in Australia?    

A.At 8:30 on Tuesday.

B.At 9:30 on Sunday.

C.At 8:30 on Saturday.

D.At 9:30 on Monday.小题3:Mr. Green lives alone in Australia and he isn’t in good health. He needs a nurse to look after him. What should he do?

A.Go to an Internet tearoom.

B.Send a letter to his son.

C.Call 1300369359.

D.Go to a hospital.小题4:Which one might be open on public holidays?

A.Public libraries.

B.Shops.

C.Banks.

D.Post offices.小题5:Which one is not right according to(根据)the above passage?

A.Surfing the Internet is cheap in Australia.

B.It costs 50 cents to send a standard letter.

C.Australians go to work on 26th January.

D.Australians don't go shopping on public holidays.

简答题