问题 选择题

家庭生活中一些常见物质的PH如下:食醋2~3、鸡蛋清7.6~8.0、牙膏8~9、肥皂水9~10.其中呈酸性的是(  )

A.食醋

B.鸡蛋清

C.牙膏

D.肥皂水

答案

A、食醋的pH为2~3,小于7,显酸性,故选项正确.

B、鸡蛋清的pH为.6~8.0,大于7,显碱性,故选项错误.

C、牙膏的pH为8~9,大于7,显碱性,故选项错误.

D、肥皂水的pH为9~10,大于7,显碱性,故选项错误.

故选:A.

完形填空

根据短文内容,从短文后的选项中选出能够填入空白处的最佳选项。选项中有两项为多余选项。

Making Friends in a New Environment

Everyone has had a moment when they’re not really sure about how they’ll succeed in a new environment. But with the following suggestions, you’ll know what it takes to set up friendships in new environment.

小题1:

When you show people you are friendly, it tells them that you are a good person who gets along well with others. 小题2: It’s quite possible that they are just as nervous around others as you are, so make them feel comfortable and be the first to speak up.

Be trustworthy(可信)

Would you like someone to tell your secrets to the entire world? Of course not, so it isn’t wise to do it to someone else. 小题3:  Trust is something to be treasured and nourished(培养), and showing others that you can be trusted is necessary in order to make new friends.

小题4:

This is the most important factor(因素) when you are adjusting to a new environment. 小题5:  Show the world that you are a person who is proud of who you are. This kind of confidence will attract all kinds of people into your life, and these people could possibly turn into new, lifelong friends.

When you do the thing above, you will see that it’s easy to succeed when you are faced with challenges in an unfamiliar place.

A.You must stay true to who you are and be confident.

B.When someone trusts you completely, it’s something that shouldn’t be taken lightly.

C.Show others that you care for everything that goes on in their life.

D.Encourage yourself to be the first one to talk to people.E.Choose your friends wisely.

F.Smile and be nice.

G.Be yourself.

单项选择题 A1/A2型题