叶绿素只有在光下才能形成。                                   （    ）

—Yes, he ________.

    Whether you're a child, teenager, young adult or are middle-aged, respecting your parents is an important value. Your parents are the people who raise you, devoting time, energy and money to your development.____Whatever your age, there are 4 ways to show respect.

    Respect their belongings.

    One important way to show respect is to show regard for the things important to your parents. For younger children, this may mean not touching jewelry or other valuable things.____Don't take advantage of your parents' kindness and generosity. And never borrow things without asking first.

    Punctuality

    ____Therefore, always be on time. For teenagers, showing up on time means coming home by curfew (宵禁). Adult children should show up on time for family dinners or events, or to pick a parent up for a medical appointment. Call if you're going to be late because parents worry about children, whatever their age.

    ____

    Remembering birthdays, anniversaries and other special days is a sign that you honor your parents. Make plans to take them to lunch or dinner or bake a cake or cookies. Most parents don't expect expensive gifts, but a handmade gift is always appreciated, a phone call from a grown child who lives too far for a visit is a welcome sign of respect.

    Be kind.

    Kind words and affection are simple ways to show respect. Tell your parents you love them. Listen and allow your parents to speak without interruption. Show a sincere interest in what your parents have to say. Be patient with your parents and don t rush them. Never talk back or be rude or disrespectful. Acknowledge your parents' achievements. ____

A. Parents should help children build self-confidence.

B. Celebrate with them.

C Lateness shows a lack of respect.

D. Treat your parents the way you would like to be treated.

E. And they love you unconditionally throughout your life.

F. Being respectful helps build positive relationships with others.

G. For grown children, respect may mean returning a borrowed tool in good condition and on time.

根据短文理解，选择正确答案。

    When thinking about placing a human being in space, one of the most important questions was how to design special clothing needed to protect a person from the dangers of the space environment. The cold of space will freeze skin in a short time. The fierce heat of the sun can cause serious burns. The lack of atmosphere can cause gases in the body to expand(扩大) and even burst. With no oxygen to breathe, a human being will die in only a few moments. Radiation from the sun is another risk in space. So is damage from small pieces of rock and objects like meteoroids (陨石).

    In 1933, an American flyer, Wiley Post, designed one of the first successful devices to protect a pilot at extreme heights. It was a large device that looked like a can surrounded the pilot's head. Astronauts in the American space agency (NASA) flew the first American space flights in the early 1960s. The clothing was similar to that invented by Wiley Post.

    Today, astronauts wear very different protective clothing. It lets them move, do useful tasks, and stay outside their spacecraft in comfort and safety for several hours. The spacesuit is called the shuttle extravehicular mobility unit or EMU. It was designed to endure longer and to permit more movement than earlier spacesuits.

    The EMU has a number of parts that an astronaut can link together by using only one hand, which makes it possible for each astronaut to select the parts that fit correctly.

    Nowadays, NASA scientists are also considering the kind of spacesuits that would be needed for exploration on the planet Mars. Because of the gravity on Mars, spacesuits may have to be designed to be lighter than suits used in orbit or on the moon. The equipment may also have to protect astronauts from dust carried in the winds on Mars. And, they must be easy to repair and keep clean during a longer flight to and from the red planet.

把下面排列错乱的句子整理通顺，标明序号。

____开始，小花苞穿着绿色的外衣。

____又过了几天，花瓣全盛开了，在阳光下向我们展开笑脸。

____几天后，小花苞顶破外衣，长出几片花瓣来。

____现在，月季花一开满花坛，他们争奇斗艳。

____ 春天来了，月季花长出了一个个花苞。