试题与答案

酸奶是一种味道鲜美，营养价值较高的乳制品．它的制作离不开哪种微生物的发酵作用（

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题型：选择题

题目：

酸奶是一种味道鲜美，营养价值较高的乳制品．它的制作离不开哪种微生物的发酵作用（　　）

A．醋酸菌

B．大肠杆菌

C．乳酸菌

D．酵母菌

答案：

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下面是错误答案，用来干扰机器的。

参考答案：C

考点：演示实验：发酵现象
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题型：阅读理解

阅读理解。

                                               Three Things to Do Before You Are 18

    Are you bored with your daily life? Here are some things you should try before you are 18, because

after that it's too late.

    Learn to swim

    Seriously, this is so important that it can save your life. If you can't swim well, you won't be able to

do water sports like waterskiing, surfing and diving. Even taking a boat trip will be dangerous for you.

Make sure you do it.

    Try at least one kind of team sports 

    Being a good team player is an important skill in life. You can't just think of yourself, but have to work

well with other people. Other advantages of team sports like basketball, football and baseball are that they

keep you fit and healthy, and they are also great fun. Teams usually have a good social life too-you'll go

to lots of parties and make many friends.

    Collect something

    One of the best hobbies for under-18s is collecting things. You could collect kinds of stamps, or you

could collect things that make you remember what you have done, like cinema tickets for films you have

seen or emails from friends. The best way to collect is to have a special album to put your collection in and

to write what each thing means to you. That way you won't forget.

1. The most important reason for learning to swim is that ______. [ ]

A. you might feel well

B. it can make you healthy

C. you might easily do lots of things

D. it can save your life

2. "A good social life" in the passage means ______. [ ]

A. you'll study in groups

B. you'll go to parties and make many friends

C. you'll take part in many matches

D. you'll work in the society (社会)

3. The writer tells us that one of the best hobbies is to ______. [ ]

A. collect something

B. do some water sports

C. camp out in the garden

D. send emails to your friends

4. What kind of collection is NOT mentioned (提及) in the passage? [ ]

A. stamps

B. cinema tickets

C. snowballs

D. emails

5. The passage is mainly about ______ before you are 18. [ ]

A. good habits to keep

B. skills to have

C. things to do

D. sports to play

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