____________ was in the room when I opened the door. But the TV was on.

A.Nobody B.Anybody C.Somebody D.Everybody

Do you like to do some ________ with your sister and brother in the science laboratory?

A.examples B.exhibitions C.exams D.experiments

_________ his mother tried her best to help her son with his English, he still did not pass the quiz at last.

A.Because B.But C.Although D.So

In the future, I hope there ______ more space stations. It must come true.

A.is B.was C.has been D.will be

Do you know where Alice has moved? I____________ her for a long time yet.

A.didn't see B.have seen C.haven't seen D.won't see

____________ useful machine the robot is!

A.How B.What C.What an D.What a

Rewrite the following sentences as required（根据所给要求, 改写下列句子。每空格限填一词。)

1.The computer cost him 5,000 yuan.（改为否定句）

The computer ___________ ___________ him 5,000 yuan.

2.The students will have their final-examination in about one month.（对划线部分提问）

____________ __________ will the students have their final-examination?

3.Peter's never late for school.（改为反意疑问句）

Peter's never late for school, __________ __________?

4.Mary can't play the piano.（保持句意基本不变）

__________ ____________ for Mary to play the piano.

5.summer, feel, make, air-conditioners., us, comfortable, in, （连词成句）

_______________________________________________________________________

Lab work is fun but you must be careful. Listen carefully when your teacher reads and explains（解释）the rules before your first lab lesson.

1.You must know the LAB RULES ____________ the first lab lesson.

A.before B.since C.during D.after

2.It is necessary for you to __________ before every experiment.

A.read all instructions carefully B.take enough food and drinks

C.smell chemicals immediately D.talk with your classmates

3.If you are not: sure how to use the apparatuses, __________________.

A.read the rules carefully B.try them again and again

C.ask your teacher for help D.return all apparatuses to the places where they were

4.The underlined word "spill" means ___________________.

A.take care of B.run out of C.fall off D.pour out in drips

5.You should put the waste materials into the ____________.

A.packet B.paper bag C.bin D.waste baskets

6.When you are in the science lab, you mustn't _______________________.

A.be careful in order to prevent injury

B.listen carefully when your teacher explains the rules

C.taste chemicals without the teacher's permission

D.throw waste materials into proper waste baskets

My mother always breaks my dream. I feel very sad and unhappy.

One day, I was doing my homework _________ my mother was surfing on the Internet. I was_________because my good friend had just called me and said that I might be a singer in the future! I was realty nappy that she could say so. And my dream is to be a singer too. But I've never said it to my mother because she doesn't like it. She wants me to be a flute（长笛）player! Oh! How boring!

After long thought, I raised my head and turned to my mother. I told my mother _______ I really want to be.

"_________ your idea! It's impossible! You should pay more attention to your studies, not pop music! If you don't study hard, you will _________ be an excellent student!" her voice went up, and I was afraid.

"But Mum, I really want to be a singer!" I was expecting that my mother could change her _________ at once, but I failed. My heart was badly hurt. But that time I said to myself, "Don't give up! Nothing is impossible. I'll never give it up although my mother doesn't stand on my side, even try to break my dream."

In a word, don't let anybody break your dream, especially those teenagers of my age. It's your own dream.

1.A.what B.where C.while D.which

2.A.afraid B.angry C.worried D.excited

3.A.when B.what C.which D.why

4.A.Keep on B.Study with C.Think over D.Give up

5.A.always B.often C.never D.sometimes

6.A.job B.idea C.place D.time

Most robots move on wheels. They have arms and people can put different ends on the arms so that the robots can do many different jobs. F_______ example, the end on the arm may help the robot to hold s_________. Many robots are very necessary in factories. They can carry things from one area of the factory to another. They are also used to carry things in hospitals. You may know that robots have been very useful in h_________ human explore space. Robots can also he如humans to explore under the sea. This robot is c_________ Alvin. It can carry out scientific experiments 4, 500 metres under the sea. It can a_________ collect things from the seabed with its arms. Luckily, more and more robots are coming into our daily life.

1.F________

2.s________

3.h________

4.c________

5.a________