This math problem is too difficult. Can you show me ________, George?

  A. what to work out                                    B. to work it out  

  C. how to work it out                                   D. how to work out it

 

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  1小組合作學(xué)習(xí)的好處；

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 —What do you think of Liu Huan?

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A desert is a very dry land where there is hardly any rain. In the day, it can be so hot that you could fry an egg on the ground. But during the night it is sometimes so cold that water would turn into ice.

Many deserts are covered in sand. But some have mountains, rocks, or lakes that have dried up in the heat. The Great American Desert has cliffs（懸崖）that have been made into amazing and beautiful shapes by the wind. The Sahara Desert in Africa is mostly sand. The Australian Desert has red sand.

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Life is hard in the desert, for people, animals and plants. But desert people like to live there.

1. A desert is very dry because ________.

  A. it is sandy                                           B. there is so little rain 

  C. the wind is strong                                D. there is no water deep under the ground

2. What does the underlined phrase “suck up” in paragraph 3 mean ________?

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3. Some desert animals have extra big eyes or ears because ________.

  A. the sunlight is too strong in the day               B. they need to see and hear well at night

  C. it is very cold at night                                   D. they store water in them

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  5. Which of the following is true?

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  B. People in the desert usually fry eggs on the ground.

     C. Camels have special fur to store water.

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— Well, I don’t have much confidence for the exam.

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   For better eyesight(視力), doctors advise limiting(限制) the hours of screen time and encourage having enough eye resting time.

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If that is not possible, school teachers should at least encourage parents and children to have regular eye examination and wear glasses. And parents should remember not only to limit the total screen time for their children, but also to encourage them to spend time outdoors.

1. What did the Australian research team study for?

       A. To find the reasons for myopia.

B. To find the ways to treat myopia.

C. To learn to choose right glasses.

D. To improve children’s eyesight.

2. Why are there fewer children with myopia in Sydney than those in Singapore?

A. Because the children in Sydney watch TV less.

B. Because the children in Sydney have more eye resting time.

C. Because the children in Sydney use computer less.

D. Because the children in Sydney do more outdoor sports.

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       A. Natural light.                                  B. Vitamin D.

       C. Natural light and Vitamin D.     D. The sun.

4. Which of the following is true?

A. Children should have eye tests as soon as they reach school age.

B. Looking more at distant objects can help the eyes keep their original shape.

C. Doing outdoor sports with no glasses is good for myopic children.

D. Children should limit their time in the sun to protect their eyes.

5. The passage mainly tells us          .

A. the children in Sydney spend more time in front of screens

B. the children in Singapore like outdoor sports

C. doing outdoor sports and limiting the hours of screen time are good for eyes

D. it’s important to test students’ eyes

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閱讀理解：根據(jù)所提供的內(nèi)容，從四個選項(xiàng)中選擇最佳答案。

Sally and Tom are classmates. Here are their plans for next weekend.

Sally's plan

Saturday　9∶00 a．m.～10∶00 a．m.　　　　　take part in the English corner

4∶00 p．m.～5∶00 p．m.  have an art lesson

8∶00 p．m.～10∶00 p．m.  be at Alice's birthday party

Sunday　8∶00 a．m.～10∶30 a．m.  do some reading at home

3∶30 p．m.～5∶00 p．m.  draw pictures in the park

7∶00 p．m.～9∶30 p．m.  do my homework

Tom's play

Saturday　8∶00 a．m.～10∶00 a．m.　　　　　do my homework at home

4∶30 p．m.～5∶45 p．m.  play basketball

8∶00 p．m.～10∶00 p．m.  be at Alice's birthday party

Sunday　8∶20 a．m.～11∶00 a．m.  roller skate

4∶05 p．m.～5∶30 p．m.  climb the hill

7∶30 p．m.～9∶30 p．m.  watch TV

1. Sally will stay in the park for ________ on Sunday afternoon.

A. one hour  B. two hours

C. one and a half hours  D. two and a half hours

2. Sally will be free at ________.

A. 9∶30 a．m. on Saturday  B. 4∶25 p．m. on Saturday

C. 10∶50 a．m. on Sunday  D. 4∶30 p．m. on Sunday

3. Tom will be ________ at 9∶25 on Saturday morning.

A. at home  B. on the playground

C. on the hill  D. in the park

4. Both Sally and Tom plan to________ next Saturday evening.

A. do some reading  B. do their homework

C. go to the English corner  D. go to Alice's birthday party

5. According to Tom's plan，we know he prefers ________.

A. drawing pictures  B. doing exercise

C. watching TV  D. reading books

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