The main unit _________  all the computer’s electronics.

       A. contains         B. shows         C. uses          D. helps

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源： 題型：


Animals do many different, amazing things to get through the winter. Some of them migrate. They travel to other places where the weather is warmer or where they can find food.

     Many birds migrate in autumn. Because the trip can be dangerous, some travel in large groups. For example, geese(鵝) fly in noisy, “V”-shaped groups. Other kinds of birds fly alone.

Some animals stay active in winter. They must change themselves as the weather changes. Many change their doing or their bodies. For example, snowshoe rabbits grow white fur to help them hide in the snow.

     Food is hard to find in winter. Some animals, like mice, collect lots of food in autumn and store it to eat later. Some animals eat different kinds of food as the seasons change.

Some animals hibernate for part or all of the winter. This is a special, very deep sleep. The animal’s body temperature drops, and its heartbeat and breathing slow down. It uses very little energy. In autumn, these animals get ready for winter by eating much more food than in summer and storing it as body fat. They use this fat to keep them alive while hibernating.

     Water makes good protection for many animals. When the weather gets cold, they move to the bottom of lakes and rivers. There, frogs and many fish hide under rocks or fallen leaves. Cold water holds more oxygen than warm water, and frogs can breathe through their skin.

     Every type of insect has its own life cycle and that is the way it grows and changes. Different insects spend the winter in different forms of their lives. Some insects also spend the winter without moving. Some insects spend the winter as pupae（蛹）. Other insects die after laying eggs in autumn. The eggs change into new insects in spring and everything begins all over again.

1.What does the underlined word “migrate” in the first paragraph most probably mean ?

    A.move from one place to another    B.sleep in the winter 

    C.disappear                         D.look for food

2.Why do many birds fly in large groups?

    A.They can easily find food this way. 

    B.There may be danger during the trip.

    C.They can get warm at night.         

    D.They will use little energy.

3.Snowshoe rabbits spend the cold winter by __________.

    A.breathing through their skin        

    B.eating a lot of food

    C.sleeping for the whole winter       

    D.growing white thicker fur

4.The main purpose of the examples in the last paragraph is to tell us _____.

    A.most insects die when winter comes

    B.different insects grow and change in their own ways

    C.most insects spend the winter without moving           

    D.different insects grow and change in the same ways

5.What is the passage mainly about?

    A.How living things grow and change in the winter.

    B.How living things spend the winter.

    C.How living things get food in the winter.

    D.How living things travel in the winter.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


---Hello! May I speak to Mary? I have _______ to tell her.

---Please_______. I’ll go and get her.

A. something important; go on B. important something; hold on

C. something important; hold on D. important something; go on

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


Workers with rich        are wanted in the factory.

A.experience   B. experiences

C. experienced   D. inexperienced

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


句型轉(zhuǎn)換

1. We came here two hours ago. ( 同義句轉(zhuǎn)換）

 We                   for two hours.

2.Jim has been in China for three months . （對(duì)畫(huà)線(xiàn)部分提問(wèn)）

                    Jim been in China?

3. They have swept the floor and cleaned the window. （改為否定句）

They       swept the floor       cleaned the window.

4. He has studied in this school since 2010 .（對(duì)畫(huà)線(xiàn)部分提問(wèn)）

                 he studied in this school?

5. He has been to England. (改為一般疑問(wèn)句）

     he       to England ?

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


 A human ______ can do some things better than a computer, for example, creating new ideas.

       A. head           B. body             C. brain         D. arm

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


Jim is good at maths, but his physics is _________.

        A. worse         B. worst       C. better          D. best

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


–Would you like to watch the three-D film Titanic with me?

   --Certainly. I don’t mind seeing it again although I _____ it twice.

   A. saw        B. was seen       C. have seen      D. had seen

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


補(bǔ)全對(duì)話(huà)

A: Where is that (1)n_________from?

B: Jenny. She is (2)t_________loudly to her friends.

A: They are too (3)l_________. Tell them to be (4)q_________.

B: Why?

A: The (5)b_________are sleeping.

B: But I think they are (6)l_________to some music.

A: This is fun! I hope they (7)e_________ the music.

B: (8)W_________are you doing here?

A: I’m (9)t_________care of the babies.

B: But they don’t (10)n_________you now.

A: OK. I’ll go and have a rest.

查看答案和解析>>

同步練習(xí)冊(cè)答案